{"kind": "tool", "major": "18", "item": {"slug": "pg-test-timing", "name": "pg_test_timing", "name_zh": "", "category": "\u670d\u52a1\u7aef\u7a0b\u5e8f", "summary": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "aliases": ["pg_test_timing"], "content_hash": "437220d19e9068a4ebdb3d748a53026bae9679c7935fe4e6300bb5f11f0b6a54", "versions": {"10": {"facts": [{"label": "\u624b\u518c\u4e2d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f", "value": "pg_test_timing"}, {"label": "\u7a0b\u5e8f\u7248\u672c", "value": "10.23"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u670d\u52a1\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "3"}], "tables": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/10/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/10/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/10/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "options": [{"names": ["-d duration", "--duration= duration"], "summary": "Specifies the test duration, in seconds. 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{"label": "\u7a0b\u5e8f\u7248\u672c", "value": "10.23"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u670d\u52a1\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "3"}], "tables": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/10/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/10/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", 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"runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "f9301feba91e2e2566038a36b8cee0e4402db68989538f88670fddd20b1f78ea"}, "sections": [], "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4ee5\u4e0b\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div class=\"refsect1\"><h2>\u63cf\u8ff0</h2><p> <span class=\"application\">pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code class=\"command\">EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div class=\"refsect1\"><h2>\u9009\u9879</h2><p> <span class=\"application\">pg_test_timing</span> \u63a5\u53d7\u4ee5\u4e0b\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n</p><div class=\"variablelist\"><dl class=\"variablelist\"><dt><span class=\"term\"><code class=\"option\">-d <em class=\"replaceable\"><code>duration</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--duration=<em class=\"replaceable\"><code>duration</code></em></code></span></dt><dd><p>        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span></dt><dd><p>        \u6253\u5370 <span class=\"application\">pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span></dt><dd><p>        \u663e\u793a\u6709\u5173 <span class=\"application\">pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/10/pgtesttiming.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4ee5\u4e0b\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "version": "10", "link_map": {"/zh/docs/10/pgtesttiming.html": "/docs/10/pgtesttiming.html"}, "body_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p> <span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div><h2>\u9009\u9879</h2><p> <span>pg_test_timing</span> \u63a5\u53d7\u4ee5\u4e0b\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n</p><div><dl><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span></dt><dd><p>        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span></dt><dd><p>        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span></dt><dd><p>        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/10/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "122950ed05b7323cde7b2ca262f6cc057b7a1ce90a1e67520abc405888fdfdc8", "content_hash": "1c371d6518a6cc20918130ef5a7795fe20a3932fd13354277671f770a356327e", "source_database": "center", "source_revision": "f9301feba91e2e2566038a36b8cee0e4402db68989538f88670fddd20b1f78ea"}, "signature": "pg_test_timing [ option ...]", "tables_zh": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/10/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/10/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/10/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "description": ["\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4ee5\u4e0b\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002"], "environment": [], "manual_html": "", "manual_path": "pgtesttiming.html", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/10/pgtesttiming.html", "method": "same-major semantic node", "sha256": "12ff6b850b309908f1d031cbc03ff6e01bca7c96d2cc363f56338da8fe11c9e6", "language": "zh", "matched_nodes": ["#PGTESTTIMING/div[2]/p[1]", "#PGTESTTIMING/div[3]/h2[0]", "#PGTESTTIMING/div[4]/p[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[3]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[5]", "#PGTESTTIMING/div[5]/p[1]", "#PGTESTTIMING/div[6]/div[1]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/p[1]", "#PGTESTTIMING/div[6]/div[2]/p[3]", "#PGTESTTIMING/div[6]/div[3]/h3[0]", "#PGTESTTIMING/div[6]/div[3]/p[1]", "#PGTESTTIMING/div[6]/div[3]/p[3]", "#PGTESTTIMING/div[6]/div[3]/p[4]", "#PGTESTTIMING/div[6]/div[3]/p[6]", "#PGTESTTIMING/div[6]/div[4]/h3[0]", "#PGTESTTIMING/div[6]/div[4]/p[1]", "#PGTESTTIMING/div[6]/div[4]/p[2]", "#PGTESTTIMING/div[6]/div[4]/p[3]", "#PGTESTTIMING/div[6]/div[4]/p[4]", "#PGTESTTIMING/div[6]/div[4]/p[5]", "#PGTESTTIMING/div[6]/div[4]/p[6]", "#PGTESTTIMING/div[6]/div[4]/p[7]", "#PGTESTTIMING/div[6]/h2[0]", "#PGTESTTIMING/div[7]/h2[0]"]}], "language": "zh", "original_text": {"/versions/10/description/0": "pg_test_timing \u2014 measure timing overhead", "/versions/10/facts/0/label": "Documented executable", "/versions/10/facts/1/label": "Executable version", "/versions/10/facts/2/label": "Reference inventory", "/versions/10/facts/2/value": "Server applications", "/versions/10/facts/3/label": "Option definition groups", "/versions/10/tables/0/title": "Documented options", "/versions/10/tables/0/rows/0/summary": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds.", "/versions/10/tables/0/rows/1/summary": "Print the pg_test_timing version and exit.", "/versions/10/tables/0/rows/2/summary": "Show help about pg_test_timing command line arguments, and exit.", "/versions/10/tables/0/columns/0/label": "Option and arguments", "/versions/10/tables/0/columns/1/label": "Description"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "9fdc18003ec6a7bd2201d49a231b7b5d4970463f43ca0591abe8698462e4aa95", "canonical_center_text_hash": "1c371d6518a6cc20918130ef5a7795fe20a3932fd13354277671f770a356327e"}, "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4ee5\u4e0b\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "comparison_data": {"options": [{"names": ["-d duration", "--duration= duration"], "signature": "-d duration --duration= duration", "description": "Specifies the test duration, in seconds. 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Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds.", "signature": "-d duration --duration= duration", "source_url": "/docs/11/pgtesttiming.html", "description": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. 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{"label": "\u7a0b\u5e8f\u7248\u672c", "value": "11.22"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u670d\u52a1\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "3"}], "tables": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/11/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/11/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/11/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-identity", "manual": {"url": "/zh/docs/11/pgtesttiming.html", "anchor": "", "locale": "zh-Hans", "version": "11", "build_id": 64, "page_key": "pgtesttiming.html", "extraction": "command-description-and-options", "source_hash": "5e1f8b45748e837c523c0360f401244fb0004be8be62372b183bb2df667bd1ca", "fragment_sha256": "bf49ef4e28d65f39e2428663ef53b1514022308554448426f3c582294f0f2a17", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:ef5c7bc074acae9795db16e6b7482aea3b222bd4bcce0f76831332b97a21e8a1", "translated_from_revision": null}, "body_sha256": "f3eb1c9e55de92fb5c340704c1eedfac6ef5da09afc90bb22fdb7e8a0a954ec4", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "53315ddaf3b3f9e6669fd1edc096bbb2cd4a65ea3e836c89e542b43af9ba3a7f"}, "sections": [], "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div class=\"refsect1\"><h2>\u63cf\u8ff0</h2><p>\n<span class=\"application\">pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code class=\"command\">EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div class=\"refsect1\"><h2>\u9009\u9879</h2><p>\n<span class=\"application\">pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div class=\"variablelist\"><dl class=\"variablelist\"><dt><span class=\"term\"><code class=\"option\">-d <em class=\"replaceable\"><code>duration</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--duration=<em class=\"replaceable\"><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span class=\"application\">pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span class=\"application\">pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/11/pgtesttiming.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "version": "11", "link_map": {"/zh/docs/11/pgtesttiming.html": "/docs/11/pgtesttiming.html"}, "body_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/11/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "7f525a644e4784979619ee96e2f35d05314aa7ac50f763e1f539abe13246222d", "content_hash": "dd353fa97afbf33827f03e162fccadc156b2e8ccc2c6330e3eb6234731f566de", "source_database": "center", "source_revision": "53315ddaf3b3f9e6669fd1edc096bbb2cd4a65ea3e836c89e542b43af9ba3a7f"}, "signature": "pg_test_timing [ option ...]", "tables_zh": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/11/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/11/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/11/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", 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pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002"], "environment": [], "manual_html": "", "manual_path": "pgtesttiming.html", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/11/pgtesttiming.html", "method": "same-major semantic node", "sha256": "34973d8096a03a1d4f1a8eef39ecc8be4ea01a6d77de6f40bcac45a3df522e40", "language": "zh", "matched_nodes": ["#PGTESTTIMING/div[2]/p[1]", "#PGTESTTIMING/div[3]/h2[0]", "#PGTESTTIMING/div[4]/p[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[3]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[5]", "#PGTESTTIMING/div[5]/p[1]", "#PGTESTTIMING/div[6]/div[1]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/p[1]", "#PGTESTTIMING/div[6]/div[2]/p[3]", "#PGTESTTIMING/div[6]/div[3]/h3[0]", "#PGTESTTIMING/div[6]/div[3]/p[1]", "#PGTESTTIMING/div[6]/div[3]/p[3]", "#PGTESTTIMING/div[6]/div[3]/p[4]", "#PGTESTTIMING/div[6]/div[3]/p[6]", "#PGTESTTIMING/div[6]/div[4]/h3[0]", "#PGTESTTIMING/div[6]/div[4]/p[1]", "#PGTESTTIMING/div[6]/div[4]/p[2]", "#PGTESTTIMING/div[6]/div[4]/p[3]", "#PGTESTTIMING/div[6]/div[4]/p[4]", "#PGTESTTIMING/div[6]/div[4]/p[5]", "#PGTESTTIMING/div[6]/div[4]/p[6]", "#PGTESTTIMING/div[6]/div[4]/p[7]", "#PGTESTTIMING/div[6]/h2[0]", "#PGTESTTIMING/div[7]/h2[0]"]}], "language": "zh", "original_text": {"/versions/11/description/0": "pg_test_timing \u2014 measure timing overhead", "/versions/11/facts/0/label": "Documented executable", "/versions/11/facts/1/label": "Executable version", "/versions/11/facts/2/label": "Reference inventory", "/versions/11/facts/2/value": "Server applications", "/versions/11/facts/3/label": "Option definition groups", "/versions/11/tables/0/title": "Documented options", "/versions/11/tables/0/rows/0/summary": "Specifies the test duration, in seconds. 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{"label": "\u7a0b\u5e8f\u7248\u672c", "value": "12.22"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u670d\u52a1\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "3"}], "tables": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/12/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/12/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/12/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-identity", "manual": {"url": "/zh/docs/12/pgtesttiming.html", "anchor": "", "locale": "zh-Hans", "version": "12", "build_id": 65, "page_key": "pgtesttiming.html", "extraction": "command-description-and-options", "source_hash": "a343a74aaa445f938bc4fa8b900513f98b0e187d64b8e3553d6957a95b8119e1", "fragment_sha256": "bf49ef4e28d65f39e2428663ef53b1514022308554448426f3c582294f0f2a17", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:86d2ff781f93e1de17122ebc514d5e64fcb63fed15941f496d7e146c6dcc7a49", "translated_from_revision": null}, "body_sha256": "6818cc7499179b94e598bc76dde6f58d76099a6db7a9ba558810ad09ec8a8f08", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "7a827e97cbfacd7febff75f34443e2043e40723de5b6d8c9d81a9430b65a37e4"}, "sections": [], "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div class=\"refsect1\"><h2>\u63cf\u8ff0</h2><p>\n<span class=\"application\">pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code class=\"command\">EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div class=\"refsect1\"><h2>\u9009\u9879</h2><p>\n<span class=\"application\">pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div class=\"variablelist\"><dl class=\"variablelist\"><dt><span class=\"term\"><code class=\"option\">-d <em class=\"replaceable\"><code>duration</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--duration=<em class=\"replaceable\"><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span class=\"application\">pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span class=\"application\">pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/12/pgtesttiming.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "version": "12", "link_map": {"/zh/docs/12/pgtesttiming.html": "/docs/12/pgtesttiming.html"}, "body_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/12/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "e4add3c5a7d89d3b45b3cfa3afa41126e9f40c6439b862c5b3e0645153a528d3", "content_hash": "a7061a76054c4a1d68dad7b93608a4313f63bed8cd644ee984d4164224d444b6", "source_database": "center", "source_revision": "7a827e97cbfacd7febff75f34443e2043e40723de5b6d8c9d81a9430b65a37e4"}, "signature": "pg_test_timing [ option ...]", "tables_zh": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/12/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/12/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/12/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", 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pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002"], "environment": [], "manual_html": "", "manual_path": "pgtesttiming.html", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/12/pgtesttiming.html", "method": "same-major semantic node", "sha256": "3c3cbb42060576a4ed268a7919b73c58da0a514ad1b87920bb687e0564a7f221", "language": "zh", "matched_nodes": ["#PGTESTTIMING/div[2]/p[1]", "#PGTESTTIMING/div[3]/h2[0]", "#PGTESTTIMING/div[4]/p[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[3]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[5]", "#PGTESTTIMING/div[5]/p[1]", "#PGTESTTIMING/div[6]/div[1]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/p[1]", "#PGTESTTIMING/div[6]/div[2]/p[3]", "#PGTESTTIMING/div[6]/div[3]/h3[0]", "#PGTESTTIMING/div[6]/div[3]/p[1]", "#PGTESTTIMING/div[6]/div[3]/p[3]", "#PGTESTTIMING/div[6]/div[3]/p[4]", 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\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div class=\"refsect1\"><h2>\u63cf\u8ff0</h2><p>\n<span class=\"application\">pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code class=\"command\">EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div class=\"refsect1\"><h2>\u9009\u9879</h2><p>\n<span class=\"application\">pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div class=\"variablelist\"><dl class=\"variablelist\"><dt><span class=\"term\"><code class=\"option\">-d <em class=\"replaceable\"><code>duration</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--duration=<em class=\"replaceable\"><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span class=\"application\">pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span class=\"application\">pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/13/pgtesttiming.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "version": "13", "link_map": {"/zh/docs/13/pgtesttiming.html": "/docs/13/pgtesttiming.html"}, "body_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/13/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "f38a9da70960ec4169b320235845e1195dc756456e1e676de89ff069e78ad6c7", "content_hash": "5a19a3c8378d9d0c36c34f0621d7b91766e821f0ddb4696eaa2731901b37467f", "source_database": "center", "source_revision": "614ee3133270254e476c118cdf6f72af78d4e4b8bbd9b28ed9ab1e14e4e9c0f6"}, "signature": "pg_test_timing [ option ...]", "tables_zh": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/13/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/13/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/13/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "description": ["\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002"], "environment": [], "manual_html": "", "manual_path": "pgtesttiming.html", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/13/pgtesttiming.html", "method": "same-major semantic node", "sha256": "89915047186b503c8add57e97f3de06a1928af337c4f0299faeaf2cd0db21212", "language": "zh", "matched_nodes": ["#PGTESTTIMING/div[2]/p[1]", "#PGTESTTIMING/div[3]/h2[0]", "#PGTESTTIMING/div[4]/p[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[3]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[5]", "#PGTESTTIMING/div[5]/p[1]", "#PGTESTTIMING/div[6]/div[1]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/p[1]", "#PGTESTTIMING/div[6]/div[2]/p[3]", "#PGTESTTIMING/div[6]/div[3]/h3[0]", "#PGTESTTIMING/div[6]/div[3]/p[1]", "#PGTESTTIMING/div[6]/div[3]/p[3]", "#PGTESTTIMING/div[6]/div[3]/p[4]", "#PGTESTTIMING/div[6]/div[3]/p[6]", "#PGTESTTIMING/div[6]/div[4]/h3[0]", "#PGTESTTIMING/div[6]/div[4]/p[1]", "#PGTESTTIMING/div[6]/div[4]/p[2]", "#PGTESTTIMING/div[6]/div[4]/p[3]", "#PGTESTTIMING/div[6]/div[4]/p[4]", "#PGTESTTIMING/div[6]/div[4]/p[5]", "#PGTESTTIMING/div[6]/div[4]/p[6]", "#PGTESTTIMING/div[6]/div[4]/p[7]", "#PGTESTTIMING/div[6]/h2[0]", "#PGTESTTIMING/div[7]/h2[0]"]}], "language": "zh", "original_text": {"/versions/13/description/0": "pg_test_timing \u2014 measure timing overhead", "/versions/13/facts/0/label": "Documented executable", "/versions/13/facts/1/label": "Executable version", "/versions/13/facts/2/label": "Reference inventory", "/versions/13/facts/2/value": "Server applications", "/versions/13/facts/3/label": "Option definition groups", "/versions/13/tables/0/title": "Documented options", "/versions/13/tables/0/rows/0/summary": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds.", "/versions/13/tables/0/rows/1/summary": "Print the pg_test_timing version and exit.", "/versions/13/tables/0/rows/2/summary": "Show help about pg_test_timing command line arguments, and exit.", "/versions/13/tables/0/columns/0/label": "Option and arguments", "/versions/13/tables/0/columns/1/label": "Description"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "35286ebff05396fee041306003ccbf3628f3b7b840a866a419888f27b9357f25", "canonical_center_text_hash": "5a19a3c8378d9d0c36c34f0621d7b91766e821f0ddb4696eaa2731901b37467f"}, "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "comparison_data": {"options": [{"names": ["-d duration", "--duration= duration"], "signature": "-d duration --duration= duration", "description": "Specifies the test duration, in seconds. 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\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div class=\"refsect1\"><h2>\u63cf\u8ff0</h2><p>\n<span class=\"application\">pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code class=\"command\">EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div class=\"refsect1\"><h2>\u9009\u9879</h2><p>\n<span class=\"application\">pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div class=\"variablelist\"><dl class=\"variablelist\"><dt><span class=\"term\"><code class=\"option\">-d <em class=\"replaceable\"><code>duration</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--duration=<em class=\"replaceable\"><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span class=\"application\">pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span class=\"application\">pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/14/pgtesttiming.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "version": "14", "link_map": {"/zh/docs/14/pgtesttiming.html": "/docs/14/pgtesttiming.html"}, "body_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/14/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "34c28521ed9f3b4ab1c16b026cc56eba99f31700fe764e73ba7e033f766663c7", "content_hash": "e0087ce058fbb59ce2bec8bbe855c19128f7d8a492dade1c9d522c41a58ef169", "source_database": "center", "source_revision": "588700d46356d8837c77c7c0a4e71e645fe6535983b8f1830aa8f2e4e41c40ae"}, "signature": "pg_test_timing [ option ...]", "tables_zh": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/14/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/14/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/14/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "description": ["\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002"], "environment": [], "manual_html": "", "manual_path": "pgtesttiming.html", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/14/pgtesttiming.html", "method": "same-major semantic node", "sha256": "f687dbde9d773d7feab5364059e34a2a3d2455c635cd7edb93defda696444550", "language": "zh", "matched_nodes": ["#PGTESTTIMING/div[2]/p[1]", "#PGTESTTIMING/div[3]/h2[0]", "#PGTESTTIMING/div[4]/p[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[3]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[5]", "#PGTESTTIMING/div[5]/p[1]", "#PGTESTTIMING/div[6]/div[1]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/p[1]", "#PGTESTTIMING/div[6]/div[2]/p[3]", "#PGTESTTIMING/div[6]/div[3]/h3[0]", "#PGTESTTIMING/div[6]/div[3]/p[1]", "#PGTESTTIMING/div[6]/div[3]/p[3]", "#PGTESTTIMING/div[6]/div[3]/p[4]", "#PGTESTTIMING/div[6]/div[3]/p[6]", "#PGTESTTIMING/div[6]/div[4]/h3[0]", "#PGTESTTIMING/div[6]/div[4]/p[1]", "#PGTESTTIMING/div[6]/div[4]/p[2]", "#PGTESTTIMING/div[6]/div[4]/p[3]", "#PGTESTTIMING/div[6]/div[4]/p[4]", "#PGTESTTIMING/div[6]/div[4]/p[5]", "#PGTESTTIMING/div[6]/div[4]/p[6]", "#PGTESTTIMING/div[6]/div[4]/p[7]", "#PGTESTTIMING/div[6]/h2[0]", "#PGTESTTIMING/div[7]/h2[0]"]}], "language": "zh", "original_text": {"/versions/14/description/0": "pg_test_timing \u2014 measure timing overhead", "/versions/14/facts/0/label": "Documented executable", "/versions/14/facts/1/label": "Executable version", "/versions/14/facts/2/label": "Reference inventory", "/versions/14/facts/2/value": "Server applications", "/versions/14/facts/3/label": "Option definition groups", "/versions/14/tables/0/title": "Documented options", "/versions/14/tables/0/rows/0/summary": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds.", "/versions/14/tables/0/rows/1/summary": "Print the pg_test_timing version and exit.", "/versions/14/tables/0/rows/2/summary": "Show help about pg_test_timing command line arguments, and exit.", "/versions/14/tables/0/columns/0/label": "Option and arguments", "/versions/14/tables/0/columns/1/label": "Description"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "414de07c11a3b8f3e50c03be4d3c9ce05f54cadb0695cdc72d21f454b3f9010d", "canonical_center_text_hash": "e0087ce058fbb59ce2bec8bbe855c19128f7d8a492dade1c9d522c41a58ef169"}, "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "comparison_data": {"options": [{"names": ["-d duration", "--duration= duration"], "signature": "-d duration --duration= duration", "description": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. 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"translated_from_revision": null}, "body_sha256": "9eba376ab045ce4d9db4f512d66918215fcef6514f2a198f8724180e8aded90f", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "6af958c6520151fc7697d56e0616b03fb00522c4568158674d452ae0644ba545"}, "sections": [], "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div class=\"refsect1\"><h2>\u63cf\u8ff0</h2><p>\n<span class=\"application\">pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code class=\"command\">EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div class=\"refsect1\"><h2>\u9009\u9879</h2><p>\n<span class=\"application\">pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div class=\"variablelist\"><dl class=\"variablelist\"><dt><span class=\"term\"><code class=\"option\">-d <em class=\"replaceable\"><code>duration</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--duration=<em class=\"replaceable\"><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span class=\"application\">pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span class=\"application\">pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/15/pgtesttiming.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "version": "15", "link_map": {"/zh/docs/15/pgtesttiming.html": "/docs/15/pgtesttiming.html"}, "body_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/15/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "fdebdd3144712a0e4bbc9725965842919088b467817e90460b31527b6a16b0a8", "content_hash": "3d9e3a13935425bf368aa5213c6d971974ffe1b2b7408478e6c7f3fc208fc9cb", "source_database": "center", "source_revision": "6af958c6520151fc7697d56e0616b03fb00522c4568158674d452ae0644ba545"}, "signature": "pg_test_timing [ option ...]", "tables_zh": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/15/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/15/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/15/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "description": ["\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002"], "environment": [], "manual_html": "", "manual_path": "pgtesttiming.html", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/15/pgtesttiming.html", "method": "same-major semantic node", "sha256": "87012d07a168355e47b158aa1f0e8ec7329a25ff11afaee8501d8dc66de2032d", "language": "zh", "matched_nodes": ["#PGTESTTIMING/div[2]/p[1]", "#PGTESTTIMING/div[3]/h2[0]", "#PGTESTTIMING/div[4]/p[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[3]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[5]", "#PGTESTTIMING/div[5]/p[1]", "#PGTESTTIMING/div[6]/div[1]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/p[1]", "#PGTESTTIMING/div[6]/div[2]/p[3]", "#PGTESTTIMING/div[6]/div[3]/h3[0]", "#PGTESTTIMING/div[6]/div[3]/p[1]", "#PGTESTTIMING/div[6]/div[3]/p[3]", "#PGTESTTIMING/div[6]/div[3]/p[4]", "#PGTESTTIMING/div[6]/div[3]/p[6]", "#PGTESTTIMING/div[6]/div[4]/h3[0]", "#PGTESTTIMING/div[6]/div[4]/p[1]", "#PGTESTTIMING/div[6]/div[4]/p[2]", "#PGTESTTIMING/div[6]/div[4]/p[3]", "#PGTESTTIMING/div[6]/div[4]/p[4]", "#PGTESTTIMING/div[6]/div[4]/p[5]", "#PGTESTTIMING/div[6]/div[4]/p[6]", "#PGTESTTIMING/div[6]/div[4]/p[7]", "#PGTESTTIMING/div[6]/h2[0]", "#PGTESTTIMING/div[7]/h2[0]"]}], "language": "zh", "original_text": {"/versions/15/description/0": "pg_test_timing \u2014 measure timing overhead", "/versions/15/facts/0/label": "Documented executable", "/versions/15/facts/1/label": "Executable version", "/versions/15/facts/2/label": "Reference inventory", "/versions/15/facts/2/value": "Server applications", "/versions/15/facts/3/label": "Option definition groups", "/versions/15/tables/0/title": "Documented options", "/versions/15/tables/0/rows/0/summary": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds.", "/versions/15/tables/0/rows/1/summary": "Print the pg_test_timing version and exit.", "/versions/15/tables/0/rows/2/summary": "Show help about pg_test_timing command line arguments, and exit.", "/versions/15/tables/0/columns/0/label": "Option and arguments", "/versions/15/tables/0/columns/1/label": "Description"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "919cd78d1bf529a321295eb0b8e35bc6b117f88f1d3094c0c700afe8d7e74e98", "canonical_center_text_hash": "3d9e3a13935425bf368aa5213c6d971974ffe1b2b7408478e6c7f3fc208fc9cb"}, "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "comparison_data": {"options": [{"names": ["-d duration", "--duration= duration"], "signature": "-d duration --duration= duration", "description": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. 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\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div class=\"refsect1\"><h2>\u63cf\u8ff0</h2><p>\n<span class=\"application\">pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code class=\"command\">EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div class=\"refsect1\"><h2>\u9009\u9879</h2><p>\n<span class=\"application\">pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div class=\"variablelist\"><dl class=\"variablelist\"><dt><span class=\"term\"><code class=\"option\">-d <em class=\"replaceable\"><code>duration</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--duration=<em class=\"replaceable\"><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span class=\"application\">pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span class=\"application\">pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/16/pgtesttiming.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "version": "16", "link_map": {"/zh/docs/16/pgtesttiming.html": "/docs/16/pgtesttiming.html"}, "body_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/16/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "766cc320a0ec9374a44db585497b7b8e1c9a1f0fed1973d3281432543c2bdfc8", "content_hash": "cb0486716f48788147bfae89bafe59b732a417e419cad7763199d29caf3850f6", "source_database": "center", "source_revision": "3c21e58b35318021716440e67bb8bafd392b6a2b965a244d90e9e33c99e0bdef"}, "signature": "pg_test_timing [ option ...]", "tables_zh": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/16/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/16/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/16/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "description": ["\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002"], "environment": [], "manual_html": "", "manual_path": "pgtesttiming.html", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/16/pgtesttiming.html", "method": "same-major semantic node", "sha256": "4f673b01c53ae830b4addf0f8ea01c501aa393b8071b171f20ec799990869be0", "language": "zh", "matched_nodes": ["#PGTESTTIMING/div[2]/p[1]", "#PGTESTTIMING/div[3]/h2[0]", "#PGTESTTIMING/div[4]/p[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[3]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[5]", "#PGTESTTIMING/div[5]/p[1]", "#PGTESTTIMING/div[6]/div[1]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/p[1]", "#PGTESTTIMING/div[6]/div[2]/p[3]", "#PGTESTTIMING/div[6]/div[3]/h3[0]", "#PGTESTTIMING/div[6]/div[3]/p[1]", "#PGTESTTIMING/div[6]/div[3]/p[3]", "#PGTESTTIMING/div[6]/div[3]/p[4]", "#PGTESTTIMING/div[6]/div[3]/p[6]", "#PGTESTTIMING/div[6]/div[4]/h3[0]", "#PGTESTTIMING/div[6]/div[4]/p[1]", "#PGTESTTIMING/div[6]/div[4]/p[2]", "#PGTESTTIMING/div[6]/div[4]/p[3]", "#PGTESTTIMING/div[6]/div[4]/p[4]", "#PGTESTTIMING/div[6]/div[4]/p[5]", "#PGTESTTIMING/div[6]/div[4]/p[6]", "#PGTESTTIMING/div[6]/div[4]/p[7]", "#PGTESTTIMING/div[6]/h2[0]", "#PGTESTTIMING/div[7]/h2[0]"]}], "language": "zh", "original_text": {"/versions/16/description/0": "pg_test_timing \u2014 measure timing overhead", "/versions/16/facts/0/label": "Documented executable", "/versions/16/facts/1/label": "Executable version", "/versions/16/facts/2/label": "Reference inventory", "/versions/16/facts/2/value": "Server applications", "/versions/16/facts/3/label": "Option definition groups", "/versions/16/tables/0/title": "Documented options", "/versions/16/tables/0/rows/0/summary": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds.", "/versions/16/tables/0/rows/1/summary": "Print the pg_test_timing version and exit.", "/versions/16/tables/0/rows/2/summary": "Show help about pg_test_timing command line arguments, and exit.", "/versions/16/tables/0/columns/0/label": "Option and arguments", "/versions/16/tables/0/columns/1/label": "Description"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "f6783021ed270c17b926e94ae6a0c0abd81a9b4dd700c4ba572add012e79d052", "canonical_center_text_hash": "cb0486716f48788147bfae89bafe59b732a417e419cad7763199d29caf3850f6"}, "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "comparison_data": {"options": [{"names": ["-d duration", "--duration= duration"], "signature": "-d duration --duration= duration", "description": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. 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\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div class=\"refsect1\"><h2>\u63cf\u8ff0</h2><p>\n<span class=\"application\">pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code class=\"command\">EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div class=\"refsect1\"><h2>\u9009\u9879</h2><p>\n<span class=\"application\">pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div class=\"variablelist\"><dl class=\"variablelist\"><dt><span class=\"term\"><code class=\"option\">-d <em class=\"replaceable\"><code>duration</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--duration=<em class=\"replaceable\"><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span class=\"application\">pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span class=\"application\">pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/17/pgtesttiming.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "version": "17", "link_map": {"/zh/docs/17/pgtesttiming.html": "/docs/17/pgtesttiming.html"}, "body_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/17/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "527cdc8c2f99a2b6afc7f44d92bbcee4c402f731b6c951366410105813809a62", "content_hash": "fb4d9da3dfeb8681db5860d29710f12f3c2d69c635bbdf6c91773273800192b6", "source_database": "center", "source_revision": "58419c9b0dd42cb34c8d53695bb025a7e582edf55ccd4c5bcb1c2c7c71a37487"}, "signature": "pg_test_timing [ option ...]", "tables_zh": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/17/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/17/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/17/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "description": ["\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002"], "environment": [], "manual_html": "", "manual_path": "pgtesttiming.html", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/17/pgtesttiming.html", "method": "same-major semantic node", "sha256": "027e05a112807f63daa4ca68f2e89be04f2cbd625f2864214628694a5585f574", "language": "zh", "matched_nodes": ["#PGTESTTIMING/div[2]/p[1]", "#PGTESTTIMING/div[3]/h2[0]", "#PGTESTTIMING/div[4]/p[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[3]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[5]", "#PGTESTTIMING/div[5]/p[1]", "#PGTESTTIMING/div[6]/div[1]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/p[1]", "#PGTESTTIMING/div[6]/div[2]/p[3]", "#PGTESTTIMING/div[6]/div[3]/h3[0]", "#PGTESTTIMING/div[6]/div[3]/p[1]", "#PGTESTTIMING/div[6]/div[3]/p[3]", "#PGTESTTIMING/div[6]/div[3]/p[4]", "#PGTESTTIMING/div[6]/div[3]/p[6]", "#PGTESTTIMING/div[6]/div[4]/h3[0]", "#PGTESTTIMING/div[6]/div[4]/p[1]", "#PGTESTTIMING/div[6]/div[4]/p[2]", "#PGTESTTIMING/div[6]/div[4]/p[3]", "#PGTESTTIMING/div[6]/div[4]/p[4]", "#PGTESTTIMING/div[6]/div[4]/p[5]", "#PGTESTTIMING/div[6]/div[4]/p[6]", "#PGTESTTIMING/div[6]/div[4]/p[7]", "#PGTESTTIMING/div[6]/h2[0]", "#PGTESTTIMING/div[7]/h2[0]"]}], "language": "zh", "original_text": {"/versions/17/description/0": "pg_test_timing \u2014 measure timing overhead", "/versions/17/facts/0/label": "Documented executable", "/versions/17/facts/1/label": "Executable version", "/versions/17/facts/2/label": "Reference inventory", "/versions/17/facts/2/value": "Server applications", "/versions/17/facts/3/label": "Option definition groups", "/versions/17/tables/0/title": "Documented options", "/versions/17/tables/0/rows/0/summary": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds.", "/versions/17/tables/0/rows/1/summary": "Print the pg_test_timing version and exit.", "/versions/17/tables/0/rows/2/summary": "Show help about pg_test_timing command line arguments, and exit.", "/versions/17/tables/0/columns/0/label": "Option and arguments", "/versions/17/tables/0/columns/1/label": "Description"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "496d18c66f6741a996d03b0a3ca22306664d96506a7e78505624c0463cc4857f", "canonical_center_text_hash": "fb4d9da3dfeb8681db5860d29710f12f3c2d69c635bbdf6c91773273800192b6"}, "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "comparison_data": {"options": [{"names": ["-d duration", "--duration= duration"], "signature": "-d duration --duration= duration", "description": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. 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\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div class=\"refsect1\"><h2>\u63cf\u8ff0</h2><p>\n<span class=\"application\">pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code class=\"command\">EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div class=\"refsect1\"><h2>\u9009\u9879</h2><p>\n<span class=\"application\">pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div class=\"variablelist\"><dl class=\"variablelist\"><dt><span class=\"term\"><code class=\"option\">-d <em class=\"replaceable\"><code>duration</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--duration=<em class=\"replaceable\"><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span class=\"application\">pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span class=\"application\">pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/18/pgtesttiming.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "version": "18", "link_map": {"/zh/docs/18/pgtesttiming.html": "/docs/18/pgtesttiming.html"}, "body_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/18/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "86a9183cc1f02ad851950f41dc1ff436bd1783fba3b007126e4cb5a7afa764d0", "content_hash": "315dffc4abc41dc55a43fe3bf5d918a6438a3d4bd40c5dfd4365bf3f6f41b921", "source_database": "center", "source_revision": "ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8"}, "signature": "pg_test_timing [ option ...]", "tables_zh": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/18/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/18/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/18/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "description": ["\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002"], "environment": [], "manual_html": "", "manual_path": "pgtesttiming.html", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/18/pgtesttiming.html", "method": "same-major semantic node", "sha256": "395d75686c4926f39f5c746b6bc97f207181a2dcc11adf97ffe58002e7913157", "language": "zh", "matched_nodes": ["#PGTESTTIMING/div[2]/p[1]", "#PGTESTTIMING/div[3]/h2[0]", "#PGTESTTIMING/div[4]/p[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[3]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[5]", "#PGTESTTIMING/div[5]/p[1]", "#PGTESTTIMING/div[6]/div[1]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/p[1]", "#PGTESTTIMING/div[6]/div[2]/p[3]", "#PGTESTTIMING/div[6]/div[3]/h3[0]", "#PGTESTTIMING/div[6]/div[3]/p[1]", "#PGTESTTIMING/div[6]/div[3]/p[3]", "#PGTESTTIMING/div[6]/div[3]/p[4]", "#PGTESTTIMING/div[6]/div[3]/p[6]", "#PGTESTTIMING/div[6]/div[4]/h3[0]", "#PGTESTTIMING/div[6]/div[4]/p[1]", "#PGTESTTIMING/div[6]/div[4]/p[2]", "#PGTESTTIMING/div[6]/div[4]/p[3]", "#PGTESTTIMING/div[6]/div[4]/p[4]", "#PGTESTTIMING/div[6]/div[4]/p[5]", "#PGTESTTIMING/div[6]/div[4]/p[6]", "#PGTESTTIMING/div[6]/div[4]/p[7]", "#PGTESTTIMING/div[6]/h2[0]", "#PGTESTTIMING/div[7]/h2[0]"]}], "language": "zh", "original_text": {"/versions/18/description/0": "pg_test_timing \u2014 measure timing overhead", "/versions/18/facts/0/label": "Documented executable", "/versions/18/facts/1/label": "Executable version", "/versions/18/facts/2/label": "Reference inventory", "/versions/18/facts/2/value": "Server applications", "/versions/18/facts/3/label": "Option definition groups", "/versions/18/tables/0/title": "Documented options", "/versions/18/tables/0/rows/0/summary": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds.", "/versions/18/tables/0/rows/1/summary": "Print the pg_test_timing version and exit.", "/versions/18/tables/0/rows/2/summary": "Show help about pg_test_timing command line arguments, and exit.", "/versions/18/tables/0/columns/0/label": "Option and arguments", "/versions/18/tables/0/columns/1/label": "Description"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "e6885a3c2f0811b8e857163f7195ee17dc712002ba75034378ac4f384e321b6e", "canonical_center_text_hash": "315dffc4abc41dc55a43fe3bf5d918a6438a3d4bd40c5dfd4365bf3f6f41b921"}, "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "comparison_data": {"options": [{"names": ["-d duration", "--duration= duration"], "signature": "-d duration --duration= duration", "description": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the pg_test_timing version and exit."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about pg_test_timing command line arguments, and exit."}], "synopsis": ["pg_test_timing [ option ...]"], "environment": []}, "comparison_hash": "1e9850049374c38671166c0a5cf0759d6f33dd01f733985211c9962ac16213b4", "manual_language": "zh", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/18/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "center_zh_rendered": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/docs/18/pgtesttiming.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "19": {"facts": [{"label": "\u624b\u518c\u4e2d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f", "value": "pg_test_timing"}, {"label": "\u7a0b\u5e8f\u7248\u672c", "value": "19rc1"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u670d\u52a1\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "4"}], "tables": [{"key": "options", "rows": [{"summary": 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"text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/19/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/19/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "options": [{"names": ["-c cutoff", "--cutoff= cutoff"], "summary": "Specifies the cutoff percentage for the list of exact observed timing durations (that is, the changes in the system clock value from one reading to the next). The list will end once the running percentage total reaches or exceeds this value, except that the largest observed duration will always be printed. The default cutoff is 99.99.", "signature": "-c cutoff --cutoff= cutoff", "source_url": "/docs/19/pgtesttiming.html", "description": "Specifies the cutoff percentage for the list of exact observed timing durations (that is, the changes in the system clock value from one reading to the next). The list will end once the running percentage total reaches or exceeds this value, except that the largest observed duration will always be printed. The default cutoff is 99.99."}, {"names": ["-d duration", "--duration= duration"], "summary": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds.", "signature": "-d duration --duration= duration", "source_url": "/docs/19/pgtesttiming.html", "description": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. 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"6352b772b008de7c120cbad9df040dcf483215d0f9054af3434794fd43ac2c5f", "source_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:65fda1f1b62a89992b84014c9157e61b67dbe8190e93945826efec668fad038c", "translated_from_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "body_sha256": "b2e7c43e5199f944c9ea42a391c78f14bbc2a44700cc60af8587a47e2b157812", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "d18947140876810d6024d5349bfc5822da04a1b923777cac5009d0665d889008"}, "sections": [], "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u7684\u8ba1\u65f6\u5f00\u9500\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u5728\u6307\u5b9a\u65f6\u957f\u5185\u4ee5\u5c3d\u53ef\u80fd\u5feb\u7684\u901f\u5ea6\u53cd\u590d\u8bfb\u53d6\u53d7\u652f\u6301\u7684\u65f6\u949f\u6e90\uff0c\u7136\u540e\u6253\u5370\u76f8\u90bb\u65f6\u949f\u8bfb\u6570\u4e4b\u95f4\u89c2\u6d4b\u5230\u7684\u5dee\u5f02\u7edf\u8ba1\uff0c\u4ee5\u53ca\u5c06\u4f7f\u7528\u54ea\u4e2a\u65f6\u949f\u6e90\u3002 \u66f4\u5c0f\uff08\u4f46\u4e0d\u4e3a\u96f6\uff09\u7684\u5dee\u5f02\u66f4\u597d\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u65f6\u949f\u786c\u4ef6\u66f4\u7cbe\u786e\uff0c\u6536\u96c6\u4e00\u6b21\u65f6\u949f\u8bfb\u6570\u7684\u5f00\u9500\u4e5f\u66f4\u5c0f\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u8be5\u5de5\u5177\u8fd8\u6709\u52a9\u4e8e\u5224\u65ad track_io_timing \u914d\u7f6e\u53c2\u6570\u662f\u5426\u53ef\u80fd\u4ea7\u751f\u6709\u7528\u7ed3\u679c\uff0c\u4ee5\u53ca TSC \u65f6\u949f\u6e90\uff08\u53c2\u89c1 timing_clock_source \uff09\u662f\u5426\u53ef\u7528\u5e76\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -c cutoff --cutoff= cutoff \u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u6301\u7eed\u65f6\u95f4\u5217\u8868\u7684\u622a\u65ad\u767e\u5206\u6bd4\uff08\u4e5f\u5c31\u662f\u7cfb\u7edf\u65f6\u949f\u503c\u4ece\u4e00\u6b21\u8bfb\u6570\u5230\u4e0b\u4e00\u6b21\u8bfb\u6570\u7684\u53d8\u5316\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u5217\u8868\u5c31\u4f1a\u7ed3\u675f\uff0c\u4e0d\u8fc7\u59cb\u7ec8\u4f1a\u6253\u5370\u89c2\u6d4b\u5230\u7684\u6700\u5927\u6301\u7eed\u65f6\u95f4\u3002\u9ed8\u8ba4\u622a\u65ad\u503c\u4e3a 99.99\u3002 -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div class=\"refsect1\"><h2>\u63cf\u8ff0</h2><p>\n<span class=\"application\">pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u7684\u8ba1\u65f6\u5f00\u9500\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u5728\u6307\u5b9a\u65f6\u957f\u5185\u4ee5\u5c3d\u53ef\u80fd\u5feb\u7684\u901f\u5ea6\u53cd\u590d\u8bfb\u53d6\u53d7\u652f\u6301\u7684\u65f6\u949f\u6e90\uff0c\u7136\u540e\u6253\u5370\u76f8\u90bb\u65f6\u949f\u8bfb\u6570\u4e4b\u95f4\u89c2\u6d4b\u5230\u7684\u5dee\u5f02\u7edf\u8ba1\uff0c\u4ee5\u53ca\u5c06\u4f7f\u7528\u54ea\u4e2a\u65f6\u949f\u6e90\u3002\n </p><p>\n  \u66f4\u5c0f\uff08\u4f46\u4e0d\u4e3a\u96f6\uff09\u7684\u5dee\u5f02\u66f4\u597d\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u65f6\u949f\u786c\u4ef6\u66f4\u7cbe\u786e\uff0c\u6536\u96c6\u4e00\u6b21\u65f6\u949f\u8bfb\u6570\u7684\u5f00\u9500\u4e5f\u66f4\u5c0f\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code class=\"command\">EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p><p>\n  \u8be5\u5de5\u5177\u8fd8\u6709\u52a9\u4e8e\u5224\u65ad <code class=\"varname\">track_io_timing</code> \u914d\u7f6e\u53c2\u6570\u662f\u5426\u53ef\u80fd\u4ea7\u751f\u6709\u7528\u7ed3\u679c\uff0c\u4ee5\u53ca <acronym class=\"acronym\">TSC</acronym> \u65f6\u949f\u6e90\uff08\u53c2\u89c1 <a class=\"xref\" href=\"/zh/docs/19/runtime-config-resource.html#GUC-TIMING-CLOCK-SOURCE\">timing_clock_source</a>\uff09\u662f\u5426\u53ef\u7528\u5e76\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u3002\n </p></div><div class=\"refsect1\"><h2>\u9009\u9879</h2><p>\n<span class=\"application\">pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div class=\"variablelist\"><dl class=\"variablelist\"><dt><span class=\"term\"><code class=\"option\">-c <em class=\"replaceable\"><code>cutoff</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--cutoff=<em class=\"replaceable\"><code>cutoff</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u6301\u7eed\u65f6\u95f4\u5217\u8868\u7684\u622a\u65ad\u767e\u5206\u6bd4\uff08\u4e5f\u5c31\u662f\u7cfb\u7edf\u65f6\u949f\u503c\u4ece\u4e00\u6b21\u8bfb\u6570\u5230\u4e0b\u4e00\u6b21\u8bfb\u6570\u7684\u53d8\u5316\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u5217\u8868\u5c31\u4f1a\u7ed3\u675f\uff0c\u4e0d\u8fc7\u59cb\u7ec8\u4f1a\u6253\u5370\u89c2\u6d4b\u5230\u7684\u6700\u5927\u6301\u7eed\u65f6\u95f4\u3002\u9ed8\u8ba4\u622a\u65ad\u503c\u4e3a 99.99\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-d <em class=\"replaceable\"><code>duration</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--duration=<em class=\"replaceable\"><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span class=\"application\">pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span class=\"application\">pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/19/pgtesttiming.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u7684\u8ba1\u65f6\u5f00\u9500\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u5728\u6307\u5b9a\u65f6\u957f\u5185\u4ee5\u5c3d\u53ef\u80fd\u5feb\u7684\u901f\u5ea6\u53cd\u590d\u8bfb\u53d6\u53d7\u652f\u6301\u7684\u65f6\u949f\u6e90\uff0c\u7136\u540e\u6253\u5370\u76f8\u90bb\u65f6\u949f\u8bfb\u6570\u4e4b\u95f4\u89c2\u6d4b\u5230\u7684\u5dee\u5f02\u7edf\u8ba1\uff0c\u4ee5\u53ca\u5c06\u4f7f\u7528\u54ea\u4e2a\u65f6\u949f\u6e90\u3002 \u66f4\u5c0f\uff08\u4f46\u4e0d\u4e3a\u96f6\uff09\u7684\u5dee\u5f02\u66f4\u597d\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u65f6\u949f\u786c\u4ef6\u66f4\u7cbe\u786e\uff0c\u6536\u96c6\u4e00\u6b21\u65f6\u949f\u8bfb\u6570\u7684\u5f00\u9500\u4e5f\u66f4\u5c0f\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u8be5\u5de5\u5177\u8fd8\u6709\u52a9\u4e8e\u5224\u65ad track_io_timing \u914d\u7f6e\u53c2\u6570\u662f\u5426\u53ef\u80fd\u4ea7\u751f\u6709\u7528\u7ed3\u679c\uff0c\u4ee5\u53ca TSC \u65f6\u949f\u6e90\uff08\u53c2\u89c1 timing_clock_source \uff09\u662f\u5426\u53ef\u7528\u5e76\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -c cutoff --cutoff= cutoff \u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u6301\u7eed\u65f6\u95f4\u5217\u8868\u7684\u622a\u65ad\u767e\u5206\u6bd4\uff08\u4e5f\u5c31\u662f\u7cfb\u7edf\u65f6\u949f\u503c\u4ece\u4e00\u6b21\u8bfb\u6570\u5230\u4e0b\u4e00\u6b21\u8bfb\u6570\u7684\u53d8\u5316\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u5217\u8868\u5c31\u4f1a\u7ed3\u675f\uff0c\u4e0d\u8fc7\u59cb\u7ec8\u4f1a\u6253\u5370\u89c2\u6d4b\u5230\u7684\u6700\u5927\u6301\u7eed\u65f6\u95f4\u3002\u9ed8\u8ba4\u622a\u65ad\u503c\u4e3a 99.99\u3002 -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "version": "19", "link_map": {"/zh/docs/19/pgtesttiming.html": "/docs/19/pgtesttiming.html", "/zh/docs/19/runtime-config-resource.html#GUC-TIMING-CLOCK-SOURCE": "/docs/19/runtime-config-resource.html#GUC-TIMING-CLOCK-SOURCE"}, "body_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u7684\u8ba1\u65f6\u5f00\u9500\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u5728\u6307\u5b9a\u65f6\u957f\u5185\u4ee5\u5c3d\u53ef\u80fd\u5feb\u7684\u901f\u5ea6\u53cd\u590d\u8bfb\u53d6\u53d7\u652f\u6301\u7684\u65f6\u949f\u6e90\uff0c\u7136\u540e\u6253\u5370\u76f8\u90bb\u65f6\u949f\u8bfb\u6570\u4e4b\u95f4\u89c2\u6d4b\u5230\u7684\u5dee\u5f02\u7edf\u8ba1\uff0c\u4ee5\u53ca\u5c06\u4f7f\u7528\u54ea\u4e2a\u65f6\u949f\u6e90\u3002\n </p><p>\n  \u66f4\u5c0f\uff08\u4f46\u4e0d\u4e3a\u96f6\uff09\u7684\u5dee\u5f02\u66f4\u597d\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u65f6\u949f\u786c\u4ef6\u66f4\u7cbe\u786e\uff0c\u6536\u96c6\u4e00\u6b21\u65f6\u949f\u8bfb\u6570\u7684\u5f00\u9500\u4e5f\u66f4\u5c0f\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p><p>\n  \u8be5\u5de5\u5177\u8fd8\u6709\u52a9\u4e8e\u5224\u65ad <code>track_io_timing</code> \u914d\u7f6e\u53c2\u6570\u662f\u5426\u53ef\u80fd\u4ea7\u751f\u6709\u7528\u7ed3\u679c\uff0c\u4ee5\u53ca <acronym>TSC</acronym> \u65f6\u949f\u6e90\uff08\u53c2\u89c1 <a href=\"/zh/docs/19/runtime-config-resource.html#GUC-TIMING-CLOCK-SOURCE\" rel=\"nofollow\">timing_clock_source</a>\uff09\u662f\u5426\u53ef\u7528\u5e76\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-c <em><code>cutoff</code></em></code><br/></span><span><code>--cutoff=<em><code>cutoff</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u6301\u7eed\u65f6\u95f4\u5217\u8868\u7684\u622a\u65ad\u767e\u5206\u6bd4\uff08\u4e5f\u5c31\u662f\u7cfb\u7edf\u65f6\u949f\u503c\u4ece\u4e00\u6b21\u8bfb\u6570\u5230\u4e0b\u4e00\u6b21\u8bfb\u6570\u7684\u53d8\u5316\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u5217\u8868\u5c31\u4f1a\u7ed3\u675f\uff0c\u4e0d\u8fc7\u59cb\u7ec8\u4f1a\u6253\u5370\u89c2\u6d4b\u5230\u7684\u6700\u5927\u6301\u7eed\u65f6\u95f4\u3002\u9ed8\u8ba4\u622a\u65ad\u503c\u4e3a 99.99\u3002\n       </p></dd><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/19/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "9f18905956c7957037681877d67b3ec47b54d7f7cc13af4523ca3e0faead4273", "content_hash": "c235d13f408539aa4a4dc200d3a7f20764231682d731ff2280326d2b916c80ae", "source_database": "center", "source_revision": "d18947140876810d6024d5349bfc5822da04a1b923777cac5009d0665d889008"}, "signature": "pg_test_timing [ option ...]", "tables_zh": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u65f6\u957f\u5217\u8868\u7684\u622a\u6b62\u767e\u5206\u6bd4\uff08\u8ba1\u65f6\u65f6\u957f\u662f\u76f8\u90bb\u4e24\u6b21\u8bfb\u53d6\u7cfb\u7edf\u65f6\u949f\u503c\u7684\u5dee\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u6b64\u503c\u65f6\uff0c\u5217\u8868\u7ed3\u675f\uff0c\u4f46\u89c2\u6d4b\u5230\u7684\u6700\u5927\u65f6\u957f\u59cb\u7ec8\u4f1a\u6253\u5370\u3002\u9ed8\u8ba4\u622a\u6b62\u503c\u4e3a 99.99\u3002", "signature": {"url": "/docs/19/pgtesttiming.html", "text": "-c cutoff --cutoff= cutoff"}}, {"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/19/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/19/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/19/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "description": ["\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u7684\u8ba1\u65f6\u5f00\u9500\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u5728\u6307\u5b9a\u65f6\u957f\u5185\u4ee5\u5c3d\u53ef\u80fd\u5feb\u7684\u901f\u5ea6\u53cd\u590d\u8bfb\u53d6\u53d7\u652f\u6301\u7684\u65f6\u949f\u6e90\uff0c\u7136\u540e\u6253\u5370\u76f8\u90bb\u65f6\u949f\u8bfb\u6570\u4e4b\u95f4\u89c2\u6d4b\u5230\u7684\u5dee\u5f02\u7edf\u8ba1\uff0c\u4ee5\u53ca\u5c06\u4f7f\u7528\u54ea\u4e2a\u65f6\u949f\u6e90\u3002 \u66f4\u5c0f\uff08\u4f46\u4e0d\u4e3a\u96f6\uff09\u7684\u5dee\u5f02\u66f4\u597d\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u65f6\u949f\u786c\u4ef6\u66f4\u7cbe\u786e\uff0c\u6536\u96c6\u4e00\u6b21\u65f6\u949f\u8bfb\u6570\u7684\u5f00\u9500\u4e5f\u66f4\u5c0f\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u8be5\u5de5\u5177\u8fd8\u6709\u52a9\u4e8e\u5224\u65ad track_io_timing \u914d\u7f6e\u53c2\u6570\u662f\u5426\u53ef\u80fd\u4ea7\u751f\u6709\u7528\u7ed3\u679c\uff0c\u4ee5\u53ca TSC \u65f6\u949f\u6e90\uff08\u53c2\u89c1 timing_clock_source \uff09\u662f\u5426\u53ef\u7528\u5e76\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -c cutoff --cutoff= cutoff \u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u6301\u7eed\u65f6\u95f4\u5217\u8868\u7684\u622a\u65ad\u767e\u5206\u6bd4\uff08\u4e5f\u5c31\u662f\u7cfb\u7edf\u65f6\u949f\u503c\u4ece\u4e00\u6b21\u8bfb\u6570\u5230\u4e0b\u4e00\u6b21\u8bfb\u6570\u7684\u53d8\u5316\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u5217\u8868\u5c31\u4f1a\u7ed3\u675f\uff0c\u4e0d\u8fc7\u59cb\u7ec8\u4f1a\u6253\u5370\u89c2\u6d4b\u5230\u7684\u6700\u5927\u6301\u7eed\u65f6\u95f4\u3002\u9ed8\u8ba4\u622a\u65ad\u503c\u4e3a 99.99\u3002 -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002"], "environment": [], "manual_html": "", "manual_path": "pgtesttiming.html", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/19/pgtesttiming.html", "method": "same-major semantic node", "sha256": "25e1e00f32db51885f0aba6ae184fba1f9f0d0fd42c8e9df49f96e3ae87ed88b", "language": "zh", "matched_nodes": ["#PGTESTTIMING/div[2]/p[1]", "#PGTESTTIMING/div[3]/h2[0]", "#PGTESTTIMING/div[4]/p[1]", "#PGTESTTIMING/div[4]/p[2]", "#PGTESTTIMING/div[4]/p[3]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[3]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[5]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[7]", "#PGTESTTIMING/div[5]/p[1]", "#PGTESTTIMING/div[6]/div[1]/div[3]/ul[0]/li[0]", "#PGTESTTIMING/div[6]/div[1]/div[3]/ul[0]/li[1]", "#PGTESTTIMING/div[6]/div[1]/div[3]/ul[0]/li[2]", "#PGTESTTIMING/div[6]/div[1]/div[3]/ul[0]/li[3]", "#PGTESTTIMING/div[6]/div[1]/h3[0]", "#PGTESTTIMING/div[6]/div[1]/p[2]", "#PGTESTTIMING/div[6]/div[1]/p[4]", "#PGTESTTIMING/div[6]/div[1]/p[5]", "#PGTESTTIMING/div[6]/div[1]/p[6]", "#PGTESTTIMING/div[6]/h2[0]", "#PGTESTTIMING/div[7]/h2[0]"]}], "language": "zh", "original_text": {"/versions/19/description/0": "pg_test_timing \u2014 measure timing overhead", "/versions/19/facts/0/label": "Documented executable", "/versions/19/facts/1/label": "Executable version", "/versions/19/facts/2/label": "Reference inventory", "/versions/19/facts/2/value": "Server applications", "/versions/19/facts/3/label": "Option definition groups", "/versions/19/tables/0/title": "Documented options", "/versions/19/tables/0/rows/0/summary": "Specifies the cutoff percentage for the list of exact observed timing durations (that is, the changes in the system clock value from one reading to the next). The list will end once the running percentage total reaches or exceeds this value, except that the largest observed duration will always be printed. The default cutoff is 99.99.", "/versions/19/tables/0/rows/1/summary": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds.", "/versions/19/tables/0/rows/2/summary": "Print the pg_test_timing version and exit.", "/versions/19/tables/0/rows/3/summary": "Show help about pg_test_timing command line arguments, and exit.", "/versions/19/tables/0/columns/0/label": "Option and arguments", "/versions/19/tables/0/columns/1/label": "Description"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "df35a08bbf61f096b5c67e66f6d9b2f3a98094c874a7c6afbc0b2f29c2ff6452", "canonical_center_text_hash": "c235d13f408539aa4a4dc200d3a7f20764231682d731ff2280326d2b916c80ae"}, "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u7684\u8ba1\u65f6\u5f00\u9500\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u5728\u6307\u5b9a\u65f6\u957f\u5185\u4ee5\u5c3d\u53ef\u80fd\u5feb\u7684\u901f\u5ea6\u53cd\u590d\u8bfb\u53d6\u53d7\u652f\u6301\u7684\u65f6\u949f\u6e90\uff0c\u7136\u540e\u6253\u5370\u76f8\u90bb\u65f6\u949f\u8bfb\u6570\u4e4b\u95f4\u89c2\u6d4b\u5230\u7684\u5dee\u5f02\u7edf\u8ba1\uff0c\u4ee5\u53ca\u5c06\u4f7f\u7528\u54ea\u4e2a\u65f6\u949f\u6e90\u3002 \u66f4\u5c0f\uff08\u4f46\u4e0d\u4e3a\u96f6\uff09\u7684\u5dee\u5f02\u66f4\u597d\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u65f6\u949f\u786c\u4ef6\u66f4\u7cbe\u786e\uff0c\u6536\u96c6\u4e00\u6b21\u65f6\u949f\u8bfb\u6570\u7684\u5f00\u9500\u4e5f\u66f4\u5c0f\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u8be5\u5de5\u5177\u8fd8\u6709\u52a9\u4e8e\u5224\u65ad track_io_timing \u914d\u7f6e\u53c2\u6570\u662f\u5426\u53ef\u80fd\u4ea7\u751f\u6709\u7528\u7ed3\u679c\uff0c\u4ee5\u53ca TSC \u65f6\u949f\u6e90\uff08\u53c2\u89c1 timing_clock_source \uff09\u662f\u5426\u53ef\u7528\u5e76\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -c cutoff --cutoff= cutoff \u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u6301\u7eed\u65f6\u95f4\u5217\u8868\u7684\u622a\u65ad\u767e\u5206\u6bd4\uff08\u4e5f\u5c31\u662f\u7cfb\u7edf\u65f6\u949f\u503c\u4ece\u4e00\u6b21\u8bfb\u6570\u5230\u4e0b\u4e00\u6b21\u8bfb\u6570\u7684\u53d8\u5316\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u5217\u8868\u5c31\u4f1a\u7ed3\u675f\uff0c\u4e0d\u8fc7\u59cb\u7ec8\u4f1a\u6253\u5370\u89c2\u6d4b\u5230\u7684\u6700\u5927\u6301\u7eed\u65f6\u95f4\u3002\u9ed8\u8ba4\u622a\u65ad\u503c\u4e3a 99.99\u3002 -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "comparison_data": {"options": [{"names": ["-c cutoff", "--cutoff= cutoff"], "signature": "-c cutoff --cutoff= cutoff", "description": "Specifies the cutoff percentage for the list of exact observed timing durations (that is, the changes in the system clock value from one reading to the next). The list will end once the running percentage total reaches or exceeds this value, except that the largest observed duration will always be printed. The default cutoff is 99.99."}, {"names": ["-d duration", "--duration= duration"], "signature": "-d duration --duration= duration", "description": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the pg_test_timing version and exit."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about pg_test_timing command line arguments, and exit."}], "synopsis": ["pg_test_timing [ option ...]"], "environment": []}, "comparison_hash": "be611164318cc707ee6f510dff66f3aacece41205f98114e61d95b161b44fd10", "manual_language": "zh", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u7684\u8ba1\u65f6\u5f00\u9500\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u5728\u6307\u5b9a\u65f6\u957f\u5185\u4ee5\u5c3d\u53ef\u80fd\u5feb\u7684\u901f\u5ea6\u53cd\u590d\u8bfb\u53d6\u53d7\u652f\u6301\u7684\u65f6\u949f\u6e90\uff0c\u7136\u540e\u6253\u5370\u76f8\u90bb\u65f6\u949f\u8bfb\u6570\u4e4b\u95f4\u89c2\u6d4b\u5230\u7684\u5dee\u5f02\u7edf\u8ba1\uff0c\u4ee5\u53ca\u5c06\u4f7f\u7528\u54ea\u4e2a\u65f6\u949f\u6e90\u3002\n </p><p>\n  \u66f4\u5c0f\uff08\u4f46\u4e0d\u4e3a\u96f6\uff09\u7684\u5dee\u5f02\u66f4\u597d\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u65f6\u949f\u786c\u4ef6\u66f4\u7cbe\u786e\uff0c\u6536\u96c6\u4e00\u6b21\u65f6\u949f\u8bfb\u6570\u7684\u5f00\u9500\u4e5f\u66f4\u5c0f\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p><p>\n  \u8be5\u5de5\u5177\u8fd8\u6709\u52a9\u4e8e\u5224\u65ad <code>track_io_timing</code> \u914d\u7f6e\u53c2\u6570\u662f\u5426\u53ef\u80fd\u4ea7\u751f\u6709\u7528\u7ed3\u679c\uff0c\u4ee5\u53ca <acronym>TSC</acronym> \u65f6\u949f\u6e90\uff08\u53c2\u89c1 <a href=\"/zh/docs/19/runtime-config-resource.html#GUC-TIMING-CLOCK-SOURCE\" rel=\"nofollow\">timing_clock_source</a>\uff09\u662f\u5426\u53ef\u7528\u5e76\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-c <em><code>cutoff</code></em></code><br/></span><span><code>--cutoff=<em><code>cutoff</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u6301\u7eed\u65f6\u95f4\u5217\u8868\u7684\u622a\u65ad\u767e\u5206\u6bd4\uff08\u4e5f\u5c31\u662f\u7cfb\u7edf\u65f6\u949f\u503c\u4ece\u4e00\u6b21\u8bfb\u6570\u5230\u4e0b\u4e00\u6b21\u8bfb\u6570\u7684\u53d8\u5316\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u5217\u8868\u5c31\u4f1a\u7ed3\u675f\uff0c\u4e0d\u8fc7\u59cb\u7ec8\u4f1a\u6253\u5370\u89c2\u6d4b\u5230\u7684\u6700\u5927\u6301\u7eed\u65f6\u95f4\u3002\u9ed8\u8ba4\u622a\u65ad\u503c\u4e3a 99.99\u3002\n       </p></dd><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/19/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "source_revalidation": {"kind": "static-same-version-source-and-manual-replay", "audit": "wiki-audit-20261023", "runtime_rerun": false, "compared_fields": "entity membership and source-derived facts; 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"\u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u65f6\u957f\u5217\u8868\u7684\u622a\u6b62\u767e\u5206\u6bd4\uff08\u8ba1\u65f6\u65f6\u957f\u662f\u76f8\u90bb\u4e24\u6b21\u8bfb\u53d6\u7cfb\u7edf\u65f6\u949f\u503c\u7684\u5dee\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u6b64\u503c\u65f6\uff0c\u5217\u8868\u7ed3\u675f\uff0c\u4f46\u89c2\u6d4b\u5230\u7684\u6700\u5927\u65f6\u957f\u59cb\u7ec8\u4f1a\u6253\u5370\u3002\u9ed8\u8ba4\u622a\u6b62\u503c\u4e3a 99.99\u3002", "signature": {"url": "/docs/devel/pgtesttiming.html", "text": "-c cutoff --cutoff= cutoff"}}, {"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/devel/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/devel/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/devel/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-identity", "manual": {"url": "/zh/docs/devel/pgtesttiming.html", "anchor": "", "locale": "zh-Hans", "version": "20", "build_id": 111, "page_key": "pgtesttiming.html", "extraction": "command-description-and-options", "source_hash": "ee71ca765a8c33d6cc96f46818c1109ace87290b0db7077c296be3c20f51ff67", "fragment_sha256": "33cac72a979b0b59c795f496eb54806f1e60e6148e61ee83086d4d9fd3f794c6", "source_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:98c980963b401d40bd50df72b909e7523e3148b8fdb48edd897de2efb67e5235", "translated_from_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "body_sha256": "866014e5fddab9b2f28e70cdb4ee37161e50dbefceb808d2e310e59dcc29e662", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "1a7c6c7636e5e62d87e76e3586ffcfdfba79093ddd5daa598c7f722ccfa45d5d"}, "sections": [], "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u7684\u8ba1\u65f6\u5f00\u9500\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u5728\u6307\u5b9a\u65f6\u957f\u5185\u4ee5\u5c3d\u53ef\u80fd\u5feb\u7684\u901f\u5ea6\u53cd\u590d\u8bfb\u53d6\u53d7\u652f\u6301\u7684\u65f6\u949f\u6e90\uff0c\u7136\u540e\u6253\u5370\u76f8\u90bb\u65f6\u949f\u8bfb\u6570\u4e4b\u95f4\u89c2\u6d4b\u5230\u7684\u5dee\u5f02\u7edf\u8ba1\uff0c\u4ee5\u53ca\u5c06\u4f7f\u7528\u54ea\u4e2a\u65f6\u949f\u6e90\u3002 \u66f4\u5c0f\uff08\u4f46\u4e0d\u4e3a\u96f6\uff09\u7684\u5dee\u5f02\u66f4\u597d\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u65f6\u949f\u786c\u4ef6\u66f4\u7cbe\u786e\uff0c\u6536\u96c6\u4e00\u6b21\u65f6\u949f\u8bfb\u6570\u7684\u5f00\u9500\u4e5f\u66f4\u5c0f\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u8be5\u5de5\u5177\u8fd8\u6709\u52a9\u4e8e\u5224\u65ad track_io_timing \u914d\u7f6e\u53c2\u6570\u662f\u5426\u53ef\u80fd\u4ea7\u751f\u6709\u7528\u7ed3\u679c\uff0c\u4ee5\u53ca TSC \u65f6\u949f\u6e90\uff08\u53c2\u89c1 timing_clock_source \uff09\u662f\u5426\u53ef\u7528\u5e76\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -c cutoff --cutoff= cutoff \u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u6301\u7eed\u65f6\u95f4\u5217\u8868\u7684\u622a\u65ad\u767e\u5206\u6bd4\uff08\u4e5f\u5c31\u662f\u7cfb\u7edf\u65f6\u949f\u503c\u4ece\u4e00\u6b21\u8bfb\u6570\u5230\u4e0b\u4e00\u6b21\u8bfb\u6570\u7684\u53d8\u5316\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u5217\u8868\u5c31\u4f1a\u7ed3\u675f\uff0c\u4e0d\u8fc7\u59cb\u7ec8\u4f1a\u6253\u5370\u89c2\u6d4b\u5230\u7684\u6700\u5927\u6301\u7eed\u65f6\u95f4\u3002\u9ed8\u8ba4\u622a\u65ad\u503c\u4e3a 99.99\u3002 -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div class=\"refsect1\"><h2>\u63cf\u8ff0</h2><p>\n<span class=\"application\">pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u7684\u8ba1\u65f6\u5f00\u9500\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u5728\u6307\u5b9a\u65f6\u957f\u5185\u4ee5\u5c3d\u53ef\u80fd\u5feb\u7684\u901f\u5ea6\u53cd\u590d\u8bfb\u53d6\u53d7\u652f\u6301\u7684\u65f6\u949f\u6e90\uff0c\u7136\u540e\u6253\u5370\u76f8\u90bb\u65f6\u949f\u8bfb\u6570\u4e4b\u95f4\u89c2\u6d4b\u5230\u7684\u5dee\u5f02\u7edf\u8ba1\uff0c\u4ee5\u53ca\u5c06\u4f7f\u7528\u54ea\u4e2a\u65f6\u949f\u6e90\u3002\n </p><p>\n  \u66f4\u5c0f\uff08\u4f46\u4e0d\u4e3a\u96f6\uff09\u7684\u5dee\u5f02\u66f4\u597d\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u65f6\u949f\u786c\u4ef6\u66f4\u7cbe\u786e\uff0c\u6536\u96c6\u4e00\u6b21\u65f6\u949f\u8bfb\u6570\u7684\u5f00\u9500\u4e5f\u66f4\u5c0f\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code class=\"command\">EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p><p>\n  \u8be5\u5de5\u5177\u8fd8\u6709\u52a9\u4e8e\u5224\u65ad <code class=\"varname\">track_io_timing</code> \u914d\u7f6e\u53c2\u6570\u662f\u5426\u53ef\u80fd\u4ea7\u751f\u6709\u7528\u7ed3\u679c\uff0c\u4ee5\u53ca <acronym class=\"acronym\">TSC</acronym> \u65f6\u949f\u6e90\uff08\u53c2\u89c1 <a class=\"xref\" href=\"/zh/docs/devel/runtime-config-resource.html#GUC-TIMING-CLOCK-SOURCE\">timing_clock_source</a>\uff09\u662f\u5426\u53ef\u7528\u5e76\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u3002\n </p></div><div class=\"refsect1\"><h2>\u9009\u9879</h2><p>\n<span class=\"application\">pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div class=\"variablelist\"><dl class=\"variablelist\"><dt><span class=\"term\"><code class=\"option\">-c <em class=\"replaceable\"><code>cutoff</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--cutoff=<em class=\"replaceable\"><code>cutoff</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u6301\u7eed\u65f6\u95f4\u5217\u8868\u7684\u622a\u65ad\u767e\u5206\u6bd4\uff08\u4e5f\u5c31\u662f\u7cfb\u7edf\u65f6\u949f\u503c\u4ece\u4e00\u6b21\u8bfb\u6570\u5230\u4e0b\u4e00\u6b21\u8bfb\u6570\u7684\u53d8\u5316\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u5217\u8868\u5c31\u4f1a\u7ed3\u675f\uff0c\u4e0d\u8fc7\u59cb\u7ec8\u4f1a\u6253\u5370\u89c2\u6d4b\u5230\u7684\u6700\u5927\u6301\u7eed\u65f6\u95f4\u3002\u9ed8\u8ba4\u622a\u65ad\u503c\u4e3a 99.99\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-d <em class=\"replaceable\"><code>duration</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--duration=<em class=\"replaceable\"><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span class=\"application\">pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span class=\"application\">pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/devel/pgtesttiming.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u7684\u8ba1\u65f6\u5f00\u9500\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u5728\u6307\u5b9a\u65f6\u957f\u5185\u4ee5\u5c3d\u53ef\u80fd\u5feb\u7684\u901f\u5ea6\u53cd\u590d\u8bfb\u53d6\u53d7\u652f\u6301\u7684\u65f6\u949f\u6e90\uff0c\u7136\u540e\u6253\u5370\u76f8\u90bb\u65f6\u949f\u8bfb\u6570\u4e4b\u95f4\u89c2\u6d4b\u5230\u7684\u5dee\u5f02\u7edf\u8ba1\uff0c\u4ee5\u53ca\u5c06\u4f7f\u7528\u54ea\u4e2a\u65f6\u949f\u6e90\u3002 \u66f4\u5c0f\uff08\u4f46\u4e0d\u4e3a\u96f6\uff09\u7684\u5dee\u5f02\u66f4\u597d\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u65f6\u949f\u786c\u4ef6\u66f4\u7cbe\u786e\uff0c\u6536\u96c6\u4e00\u6b21\u65f6\u949f\u8bfb\u6570\u7684\u5f00\u9500\u4e5f\u66f4\u5c0f\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u8be5\u5de5\u5177\u8fd8\u6709\u52a9\u4e8e\u5224\u65ad track_io_timing \u914d\u7f6e\u53c2\u6570\u662f\u5426\u53ef\u80fd\u4ea7\u751f\u6709\u7528\u7ed3\u679c\uff0c\u4ee5\u53ca TSC \u65f6\u949f\u6e90\uff08\u53c2\u89c1 timing_clock_source \uff09\u662f\u5426\u53ef\u7528\u5e76\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -c cutoff --cutoff= cutoff \u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u6301\u7eed\u65f6\u95f4\u5217\u8868\u7684\u622a\u65ad\u767e\u5206\u6bd4\uff08\u4e5f\u5c31\u662f\u7cfb\u7edf\u65f6\u949f\u503c\u4ece\u4e00\u6b21\u8bfb\u6570\u5230\u4e0b\u4e00\u6b21\u8bfb\u6570\u7684\u53d8\u5316\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u5217\u8868\u5c31\u4f1a\u7ed3\u675f\uff0c\u4e0d\u8fc7\u59cb\u7ec8\u4f1a\u6253\u5370\u89c2\u6d4b\u5230\u7684\u6700\u5927\u6301\u7eed\u65f6\u95f4\u3002\u9ed8\u8ba4\u622a\u65ad\u503c\u4e3a 99.99\u3002 -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "version": "20", "link_map": {"/zh/docs/devel/pgtesttiming.html": "/docs/devel/pgtesttiming.html", "/zh/docs/devel/runtime-config-resource.html#GUC-TIMING-CLOCK-SOURCE": "/docs/devel/runtime-config-resource.html#GUC-TIMING-CLOCK-SOURCE"}, "body_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u7684\u8ba1\u65f6\u5f00\u9500\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u5728\u6307\u5b9a\u65f6\u957f\u5185\u4ee5\u5c3d\u53ef\u80fd\u5feb\u7684\u901f\u5ea6\u53cd\u590d\u8bfb\u53d6\u53d7\u652f\u6301\u7684\u65f6\u949f\u6e90\uff0c\u7136\u540e\u6253\u5370\u76f8\u90bb\u65f6\u949f\u8bfb\u6570\u4e4b\u95f4\u89c2\u6d4b\u5230\u7684\u5dee\u5f02\u7edf\u8ba1\uff0c\u4ee5\u53ca\u5c06\u4f7f\u7528\u54ea\u4e2a\u65f6\u949f\u6e90\u3002\n </p><p>\n  \u66f4\u5c0f\uff08\u4f46\u4e0d\u4e3a\u96f6\uff09\u7684\u5dee\u5f02\u66f4\u597d\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u65f6\u949f\u786c\u4ef6\u66f4\u7cbe\u786e\uff0c\u6536\u96c6\u4e00\u6b21\u65f6\u949f\u8bfb\u6570\u7684\u5f00\u9500\u4e5f\u66f4\u5c0f\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p><p>\n  \u8be5\u5de5\u5177\u8fd8\u6709\u52a9\u4e8e\u5224\u65ad <code>track_io_timing</code> \u914d\u7f6e\u53c2\u6570\u662f\u5426\u53ef\u80fd\u4ea7\u751f\u6709\u7528\u7ed3\u679c\uff0c\u4ee5\u53ca <acronym>TSC</acronym> \u65f6\u949f\u6e90\uff08\u53c2\u89c1 <a href=\"/zh/docs/devel/runtime-config-resource.html#GUC-TIMING-CLOCK-SOURCE\" rel=\"nofollow\">timing_clock_source</a>\uff09\u662f\u5426\u53ef\u7528\u5e76\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-c <em><code>cutoff</code></em></code><br/></span><span><code>--cutoff=<em><code>cutoff</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u6301\u7eed\u65f6\u95f4\u5217\u8868\u7684\u622a\u65ad\u767e\u5206\u6bd4\uff08\u4e5f\u5c31\u662f\u7cfb\u7edf\u65f6\u949f\u503c\u4ece\u4e00\u6b21\u8bfb\u6570\u5230\u4e0b\u4e00\u6b21\u8bfb\u6570\u7684\u53d8\u5316\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u5217\u8868\u5c31\u4f1a\u7ed3\u675f\uff0c\u4e0d\u8fc7\u59cb\u7ec8\u4f1a\u6253\u5370\u89c2\u6d4b\u5230\u7684\u6700\u5927\u6301\u7eed\u65f6\u95f4\u3002\u9ed8\u8ba4\u622a\u65ad\u503c\u4e3a 99.99\u3002\n       </p></dd><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/devel/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "4e24805ccc6114b75684c57d503ad3fade6b5d5b0ebcc3827c9932beaa509227", "content_hash": "0a3f11ff165ec8bd9f1cb703d9d0414795723e797246ac1434e7581ca3b9c05c", "source_database": "center", "source_revision": "1a7c6c7636e5e62d87e76e3586ffcfdfba79093ddd5daa598c7f722ccfa45d5d"}, "signature": "pg_test_timing [ option ...]", "tables_zh": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u65f6\u957f\u5217\u8868\u7684\u622a\u6b62\u767e\u5206\u6bd4\uff08\u8ba1\u65f6\u65f6\u957f\u662f\u76f8\u90bb\u4e24\u6b21\u8bfb\u53d6\u7cfb\u7edf\u65f6\u949f\u503c\u7684\u5dee\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u6b64\u503c\u65f6\uff0c\u5217\u8868\u7ed3\u675f\uff0c\u4f46\u89c2\u6d4b\u5230\u7684\u6700\u5927\u65f6\u957f\u59cb\u7ec8\u4f1a\u6253\u5370\u3002\u9ed8\u8ba4\u622a\u6b62\u503c\u4e3a 99.99\u3002", "signature": {"url": "/docs/devel/pgtesttiming.html", "text": "-c cutoff --cutoff= cutoff"}}, {"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/devel/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/devel/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/devel/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "description": ["\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u7684\u8ba1\u65f6\u5f00\u9500\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u5728\u6307\u5b9a\u65f6\u957f\u5185\u4ee5\u5c3d\u53ef\u80fd\u5feb\u7684\u901f\u5ea6\u53cd\u590d\u8bfb\u53d6\u53d7\u652f\u6301\u7684\u65f6\u949f\u6e90\uff0c\u7136\u540e\u6253\u5370\u76f8\u90bb\u65f6\u949f\u8bfb\u6570\u4e4b\u95f4\u89c2\u6d4b\u5230\u7684\u5dee\u5f02\u7edf\u8ba1\uff0c\u4ee5\u53ca\u5c06\u4f7f\u7528\u54ea\u4e2a\u65f6\u949f\u6e90\u3002 \u66f4\u5c0f\uff08\u4f46\u4e0d\u4e3a\u96f6\uff09\u7684\u5dee\u5f02\u66f4\u597d\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u65f6\u949f\u786c\u4ef6\u66f4\u7cbe\u786e\uff0c\u6536\u96c6\u4e00\u6b21\u65f6\u949f\u8bfb\u6570\u7684\u5f00\u9500\u4e5f\u66f4\u5c0f\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u8be5\u5de5\u5177\u8fd8\u6709\u52a9\u4e8e\u5224\u65ad track_io_timing \u914d\u7f6e\u53c2\u6570\u662f\u5426\u53ef\u80fd\u4ea7\u751f\u6709\u7528\u7ed3\u679c\uff0c\u4ee5\u53ca TSC \u65f6\u949f\u6e90\uff08\u53c2\u89c1 timing_clock_source \uff09\u662f\u5426\u53ef\u7528\u5e76\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -c cutoff --cutoff= cutoff \u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u6301\u7eed\u65f6\u95f4\u5217\u8868\u7684\u622a\u65ad\u767e\u5206\u6bd4\uff08\u4e5f\u5c31\u662f\u7cfb\u7edf\u65f6\u949f\u503c\u4ece\u4e00\u6b21\u8bfb\u6570\u5230\u4e0b\u4e00\u6b21\u8bfb\u6570\u7684\u53d8\u5316\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u5217\u8868\u5c31\u4f1a\u7ed3\u675f\uff0c\u4e0d\u8fc7\u59cb\u7ec8\u4f1a\u6253\u5370\u89c2\u6d4b\u5230\u7684\u6700\u5927\u6301\u7eed\u65f6\u95f4\u3002\u9ed8\u8ba4\u622a\u65ad\u503c\u4e3a 99.99\u3002 -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002"], "environment": [], "manual_html": "", "manual_path": "pgtesttiming.html", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/devel/pgtesttiming.html", "method": "same-major semantic node", "sha256": "8a4127ea0d9d7575024c103857a6c357b1a3a30015a30ab38f22892ff47f1776", "language": "zh", "matched_nodes": ["#PGTESTTIMING/div[2]/p[1]", "#PGTESTTIMING/div[3]/h2[0]", "#PGTESTTIMING/div[4]/p[1]", "#PGTESTTIMING/div[4]/p[2]", "#PGTESTTIMING/div[4]/p[3]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[3]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[5]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[7]", "#PGTESTTIMING/div[5]/p[1]", "#PGTESTTIMING/div[6]/div[1]/div[3]/ul[0]/li[0]", "#PGTESTTIMING/div[6]/div[1]/div[3]/ul[0]/li[1]", "#PGTESTTIMING/div[6]/div[1]/div[3]/ul[0]/li[2]", "#PGTESTTIMING/div[6]/div[1]/div[3]/ul[0]/li[3]", "#PGTESTTIMING/div[6]/div[1]/h3[0]", "#PGTESTTIMING/div[6]/div[1]/p[2]", "#PGTESTTIMING/div[6]/div[1]/p[4]", "#PGTESTTIMING/div[6]/div[1]/p[5]", "#PGTESTTIMING/div[6]/div[1]/p[6]", "#PGTESTTIMING/div[6]/h2[0]", "#PGTESTTIMING/div[7]/h2[0]"]}], "language": "zh", "original_text": {"/summary": "pg_test_timing \u2014 measure timing overhead", "/category": "Server applications", "/versions/20/description/0": "pg_test_timing \u2014 measure timing overhead", "/versions/20/facts/0/label": "Documented executable", "/versions/20/facts/1/label": "Executable version", "/versions/20/facts/2/label": "Reference inventory", "/versions/20/facts/2/value": "Server applications", "/versions/20/facts/3/label": "Option definition groups", "/versions/20/tables/0/title": "Documented options", "/versions/20/tables/0/rows/0/summary": "Specifies the cutoff percentage for the list of exact observed timing durations (that is, the changes in the system clock value from one reading to the next). The list will end once the running percentage total reaches or exceeds this value, except that the largest observed duration will always be printed. The default cutoff is 99.99.", "/versions/20/tables/0/rows/1/summary": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds.", "/versions/20/tables/0/rows/2/summary": "Print the pg_test_timing version and exit.", "/versions/20/tables/0/rows/3/summary": "Show help about pg_test_timing command line arguments, and exit.", "/versions/20/tables/0/columns/0/label": "Option and arguments", "/versions/20/tables/0/columns/1/label": "Description"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "c5ad21c471ab750a6ec1d0ed0e062f4acd2946f3d82bced0d1f37b4fa2fe2aef", "canonical_center_text_hash": "0a3f11ff165ec8bd9f1cb703d9d0414795723e797246ac1434e7581ca3b9c05c"}, "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u7684\u8ba1\u65f6\u5f00\u9500\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u5728\u6307\u5b9a\u65f6\u957f\u5185\u4ee5\u5c3d\u53ef\u80fd\u5feb\u7684\u901f\u5ea6\u53cd\u590d\u8bfb\u53d6\u53d7\u652f\u6301\u7684\u65f6\u949f\u6e90\uff0c\u7136\u540e\u6253\u5370\u76f8\u90bb\u65f6\u949f\u8bfb\u6570\u4e4b\u95f4\u89c2\u6d4b\u5230\u7684\u5dee\u5f02\u7edf\u8ba1\uff0c\u4ee5\u53ca\u5c06\u4f7f\u7528\u54ea\u4e2a\u65f6\u949f\u6e90\u3002 \u66f4\u5c0f\uff08\u4f46\u4e0d\u4e3a\u96f6\uff09\u7684\u5dee\u5f02\u66f4\u597d\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u65f6\u949f\u786c\u4ef6\u66f4\u7cbe\u786e\uff0c\u6536\u96c6\u4e00\u6b21\u65f6\u949f\u8bfb\u6570\u7684\u5f00\u9500\u4e5f\u66f4\u5c0f\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u8be5\u5de5\u5177\u8fd8\u6709\u52a9\u4e8e\u5224\u65ad track_io_timing \u914d\u7f6e\u53c2\u6570\u662f\u5426\u53ef\u80fd\u4ea7\u751f\u6709\u7528\u7ed3\u679c\uff0c\u4ee5\u53ca TSC \u65f6\u949f\u6e90\uff08\u53c2\u89c1 timing_clock_source \uff09\u662f\u5426\u53ef\u7528\u5e76\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -c cutoff --cutoff= cutoff \u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u6301\u7eed\u65f6\u95f4\u5217\u8868\u7684\u622a\u65ad\u767e\u5206\u6bd4\uff08\u4e5f\u5c31\u662f\u7cfb\u7edf\u65f6\u949f\u503c\u4ece\u4e00\u6b21\u8bfb\u6570\u5230\u4e0b\u4e00\u6b21\u8bfb\u6570\u7684\u53d8\u5316\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u5217\u8868\u5c31\u4f1a\u7ed3\u675f\uff0c\u4e0d\u8fc7\u59cb\u7ec8\u4f1a\u6253\u5370\u89c2\u6d4b\u5230\u7684\u6700\u5927\u6301\u7eed\u65f6\u95f4\u3002\u9ed8\u8ba4\u622a\u65ad\u503c\u4e3a 99.99\u3002 -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "comparison_data": {"options": [{"names": ["-c cutoff", "--cutoff= cutoff"], "signature": "-c cutoff --cutoff= cutoff", "description": "Specifies the cutoff percentage for the list of exact observed timing durations (that is, the changes in the system clock value from one reading to the next). The list will end once the running percentage total reaches or exceeds this value, except that the largest observed duration will always be printed. The default cutoff is 99.99."}, {"names": ["-d duration", "--duration= duration"], "signature": "-d duration --duration= duration", "description": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the pg_test_timing version and exit."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about pg_test_timing command line arguments, and exit."}], "synopsis": ["pg_test_timing [ option ...]"], "environment": []}, "comparison_hash": "be611164318cc707ee6f510dff66f3aacece41205f98114e61d95b161b44fd10", "manual_language": "zh", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u4e0a\u7684\u8ba1\u65f6\u5f00\u9500\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u5728\u6307\u5b9a\u65f6\u957f\u5185\u4ee5\u5c3d\u53ef\u80fd\u5feb\u7684\u901f\u5ea6\u53cd\u590d\u8bfb\u53d6\u53d7\u652f\u6301\u7684\u65f6\u949f\u6e90\uff0c\u7136\u540e\u6253\u5370\u76f8\u90bb\u65f6\u949f\u8bfb\u6570\u4e4b\u95f4\u89c2\u6d4b\u5230\u7684\u5dee\u5f02\u7edf\u8ba1\uff0c\u4ee5\u53ca\u5c06\u4f7f\u7528\u54ea\u4e2a\u65f6\u949f\u6e90\u3002\n </p><p>\n  \u66f4\u5c0f\uff08\u4f46\u4e0d\u4e3a\u96f6\uff09\u7684\u5dee\u5f02\u66f4\u597d\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u65f6\u949f\u786c\u4ef6\u66f4\u7cbe\u786e\uff0c\u6536\u96c6\u4e00\u6b21\u65f6\u949f\u8bfb\u6570\u7684\u5f00\u9500\u4e5f\u66f4\u5c0f\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p><p>\n  \u8be5\u5de5\u5177\u8fd8\u6709\u52a9\u4e8e\u5224\u65ad <code>track_io_timing</code> \u914d\u7f6e\u53c2\u6570\u662f\u5426\u53ef\u80fd\u4ea7\u751f\u6709\u7528\u7ed3\u679c\uff0c\u4ee5\u53ca <acronym>TSC</acronym> \u65f6\u949f\u6e90\uff08\u53c2\u89c1 <a href=\"/zh/docs/devel/runtime-config-resource.html#GUC-TIMING-CLOCK-SOURCE\" rel=\"nofollow\">timing_clock_source</a>\uff09\u662f\u5426\u53ef\u7528\u5e76\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-c <em><code>cutoff</code></em></code><br/></span><span><code>--cutoff=<em><code>cutoff</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u7cbe\u786e\u89c2\u6d4b\u8ba1\u65f6\u6301\u7eed\u65f6\u95f4\u5217\u8868\u7684\u622a\u65ad\u767e\u5206\u6bd4\uff08\u4e5f\u5c31\u662f\u7cfb\u7edf\u65f6\u949f\u503c\u4ece\u4e00\u6b21\u8bfb\u6570\u5230\u4e0b\u4e00\u6b21\u8bfb\u6570\u7684\u53d8\u5316\uff09\u3002\u5f53\u7d2f\u8ba1\u767e\u5206\u6bd4\u8fbe\u5230\u6216\u8d85\u8fc7\u8be5\u503c\u65f6\uff0c\u5217\u8868\u5c31\u4f1a\u7ed3\u675f\uff0c\u4e0d\u8fc7\u59cb\u7ec8\u4f1a\u6253\u5370\u89c2\u6d4b\u5230\u7684\u6700\u5927\u6301\u7eed\u65f6\u95f4\u3002\u9ed8\u8ba4\u622a\u65ad\u503c\u4e3a 99.99\u3002\n       </p></dd><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/devel/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "source_revalidation": {"kind": "static-same-version-source-and-manual-replay", "audit": "wiki-audit-20261023", "runtime_rerun": false, "compared_fields": "entity membership and source-derived facts; 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\u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/18/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-identity", "manual": {"url": "/zh/docs/18/pgtesttiming.html", "anchor": "", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "pgtesttiming.html", "extraction": "command-description-and-options", "source_hash": "b236985c39e9f03d6ffd0374f559c3b59e4a4d55aa3fc29fb03cc089b791423d", "fragment_sha256": "bf49ef4e28d65f39e2428663ef53b1514022308554448426f3c582294f0f2a17", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b", "translated_from_revision": null}, "body_sha256": "5ffa7b3c741d64d492dcbc2d3d4032eb15ee27c05225d6946fec8835977017a9", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8"}, "sections": [], "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div class=\"refsect1\"><h2>\u63cf\u8ff0</h2><p>\n<span class=\"application\">pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code class=\"command\">EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div class=\"refsect1\"><h2>\u9009\u9879</h2><p>\n<span class=\"application\">pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div class=\"variablelist\"><dl class=\"variablelist\"><dt><span class=\"term\"><code class=\"option\">-d <em class=\"replaceable\"><code>duration</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--duration=<em class=\"replaceable\"><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span class=\"application\">pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span class=\"application\">pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/18/pgtesttiming.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "version": "18", "link_map": {"/zh/docs/18/pgtesttiming.html": "/docs/18/pgtesttiming.html"}, "body_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/18/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "86a9183cc1f02ad851950f41dc1ff436bd1783fba3b007126e4cb5a7afa764d0", "content_hash": "315dffc4abc41dc55a43fe3bf5d918a6438a3d4bd40c5dfd4365bf3f6f41b921", "source_database": "center", "source_revision": "ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8"}, "signature": "pg_test_timing [ option ...]", "tables_zh": [{"key": "options", "rows": [{"summary": "\u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002", "signature": {"url": "/docs/18/pgtesttiming.html", "text": "-d duration --duration= duration"}}, {"summary": "\u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/18/pgtesttiming.html", "text": "-V --version"}}, {"summary": "\u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/18/pgtesttiming.html", "text": "-? --help"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}], "description": ["\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002"], "environment": [], "manual_html": "", "manual_path": "pgtesttiming.html", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/18/pgtesttiming.html", "method": "same-major semantic node", "sha256": "395d75686c4926f39f5c746b6bc97f207181a2dcc11adf97ffe58002e7913157", "language": "zh", "matched_nodes": ["#PGTESTTIMING/div[2]/p[1]", "#PGTESTTIMING/div[3]/h2[0]", "#PGTESTTIMING/div[4]/p[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[1]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[3]", "#PGTESTTIMING/div[5]/div[2]/dl[0]/dd[5]", "#PGTESTTIMING/div[5]/p[1]", "#PGTESTTIMING/div[6]/div[1]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/h3[0]", "#PGTESTTIMING/div[6]/div[2]/p[1]", "#PGTESTTIMING/div[6]/div[2]/p[3]", "#PGTESTTIMING/div[6]/div[3]/h3[0]", "#PGTESTTIMING/div[6]/div[3]/p[1]", "#PGTESTTIMING/div[6]/div[3]/p[3]", "#PGTESTTIMING/div[6]/div[3]/p[4]", "#PGTESTTIMING/div[6]/div[3]/p[6]", "#PGTESTTIMING/div[6]/div[4]/h3[0]", "#PGTESTTIMING/div[6]/div[4]/p[1]", "#PGTESTTIMING/div[6]/div[4]/p[2]", "#PGTESTTIMING/div[6]/div[4]/p[3]", "#PGTESTTIMING/div[6]/div[4]/p[4]", "#PGTESTTIMING/div[6]/div[4]/p[5]", "#PGTESTTIMING/div[6]/div[4]/p[6]", "#PGTESTTIMING/div[6]/div[4]/p[7]", "#PGTESTTIMING/div[6]/h2[0]", "#PGTESTTIMING/div[7]/h2[0]"]}], "language": "zh", "original_text": {"/versions/18/description/0": "pg_test_timing \u2014 measure timing overhead", "/versions/18/facts/0/label": "Documented executable", "/versions/18/facts/1/label": "Executable version", "/versions/18/facts/2/label": "Reference inventory", "/versions/18/facts/2/value": "Server applications", "/versions/18/facts/3/label": "Option definition groups", "/versions/18/tables/0/title": "Documented options", "/versions/18/tables/0/rows/0/summary": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds.", "/versions/18/tables/0/rows/1/summary": "Print the pg_test_timing version and exit.", "/versions/18/tables/0/rows/2/summary": "Show help about pg_test_timing command line arguments, and exit.", "/versions/18/tables/0/columns/0/label": "Option and arguments", "/versions/18/tables/0/columns/1/label": "Description"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "e6885a3c2f0811b8e857163f7195ee17dc712002ba75034378ac4f384e321b6e", "canonical_center_text_hash": "315dffc4abc41dc55a43fe3bf5d918a6438a3d4bd40c5dfd4365bf3f6f41b921"}, "description_zh": "\u63cf\u8ff0 pg_test_timing \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684 EXPLAIN ANALYZE \u7ed3\u679c\u3002 \u9009\u9879 pg_test_timing \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a -d duration --duration= duration \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002 -V --version \u6253\u5370 pg_test_timing \u7248\u672c\u5e76\u9000\u51fa\u3002 -? --help \u663e\u793a\u6709\u5173 pg_test_timing \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002", "comparison_data": {"options": [{"names": ["-d duration", "--duration= duration"], "signature": "-d duration --duration= duration", "description": "Specifies the test duration, in seconds. Longer durations give slightly better accuracy, and are more likely to discover problems with the system clock moving backwards. The default test duration is 3 seconds."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the pg_test_timing version and exit."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about pg_test_timing command line arguments, and exit."}], "synopsis": ["pg_test_timing [ option ...]"], "environment": []}, "comparison_hash": "1e9850049374c38671166c0a5cf0759d6f33dd01f733985211c9962ac16213b4", "manual_language": "zh", "description_zh_html": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/zh/docs/18/pgtesttiming.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "center_zh_rendered": "<p>\u547d\u4ee4\u884c\u5de5\u5177 pg_test_timing [ option ...]\u3002</p><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009</h3><div><h2>\u63cf\u8ff0</h2><p>\n<span>pg_test_timing</span> \u662f\u4e00\u4e2a\u7528\u4e8e\u6d4b\u91cf\u7cfb\u7edf\u8ba1\u65f6\u5f00\u9500\u7684\u5de5\u5177\uff0c\u5e76\u786e\u8ba4\u7cfb\u7edf\u65f6\u95f4\u4e0d\u4f1a\u5012\u9000\u3002\u6536\u96c6\u8ba1\u65f6\u6570\u636e\u8f83\u6162\u7684\u7cfb\u7edf\uff0c\u53ef\u80fd\u4f1a\u7ed9\u51fa\u4e0d\u591f\u7cbe\u786e\u7684\n  <code>EXPLAIN ANALYZE</code> \u7ed3\u679c\u3002\n </p></div><div><h2>\u9009\u9879</h2><p>\n<span>pg_test_timing</span> \u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u9009\u9879\uff1a\n\n    </p><div><dl><dt><span><code>-d <em><code>duration</code></em></code><br/></span><span><code>--duration=<em><code>duration</code></em></code></span> </dt><dd><p>\n        \u6307\u5b9a\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u6301\u7eed\u65f6\u95f4\u8d8a\u957f\uff0c\u7cbe\u5ea6\u4f1a\u7565\u6709\u63d0\u9ad8\uff0c\u4e5f\u66f4\u53ef\u80fd\u53d1\u73b0\u7cfb\u7edf\u65f6\u949f\u5012\u9000\u7684\u95ee\u9898\u3002\u9ed8\u8ba4\u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 3 \u79d2\u3002\n       </p></dd><dt><span><code>-V</code><br/></span><span><code>--version</code></span> </dt><dd><p>\n        \u6253\u5370 <span>pg_test_timing</span> \u7248\u672c\u5e76\u9000\u51fa\u3002\n       </p></dd><dt><span><code>-?</code><br/></span><span><code>--help</code></span> </dt><dd><p>\n        \u663e\u793a\u6709\u5173 <span>pg_test_timing</span> \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002\n       </p></dd></dl></div><p>\n</p></div><p><a href=\"/docs/18/pgtesttiming.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "comparison": {"left": "17", "right": "18", "status": "unchanged", "diff": ""}}