{"id":41651,"date":"2023-10-26T18:48:05","date_gmt":"2023-02-09T18:56:28","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8postgresql%e4%b8%ad%e8%bf%9b%e8%a1%8c%e4%bc%98%e5%85%88%e6%8e%a7%e5%88%b6\/"},"modified":"2024-05-04T06:08:24","modified_gmt":"2024-05-03T22:08:24","slug":"%e5%9c%a8postgresql%e4%b8%ad%e8%bf%9b%e8%a1%8c%e4%bc%98%e5%85%88%e6%8e%a7%e5%88%b6","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8postgresql%e4%b8%ad%e8%bf%9b%e8%a1%8c%e4%bc%98%e5%85%88%e6%8e%a7%e5%88%b6\/","title":{"rendered":"\u5728PostgreSQL\u4e2d\u8fdb\u884c\u4f18\u5148\u63a7\u5236"},"content":{"rendered":"

\u6211\u5011\u53ef\u4ee5\u901a\u904e\u4e00\u7a2e\u65b9\u6cd5\u4f86\u63a7\u5236PostgreSQL\u9032\u7a0b\u7684\u57f7\u884c\u512a\u5148\u7d1a\uff0c\u5373\u4f7f\u7528pg_cheat_funcs\u63d0\u4f9b\u7684scheduling_priority\u53c3\u6578\u3002\u672c\u6b21\u65e8\u5728\u78ba\u8a8d\u9019\u500b\u53c3\u6578\u5728PostgreSQL\u4e2d\u5c0d\u512a\u5148\u7d1a\u63a7\u5236\u7684\u6548\u679c\u3002<\/p>\n

\u8c03\u5ea6\u4f18\u5148\u7ea7\u662fpg_cheat_funcs\u63d0\u4f9b\u7684\u4e00\u4e2a\u53c2\u6570\uff0c\u7528\u4e8e\u6307\u5b9aPostgreSQL\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff08nice\u503c\uff09\u3002\u53ef\u4ee5\u5728\u4f1a\u8bdd\u7ea7\u522b\u7684SET\u8bed\u53e5\u6216\u7528\u6237\u7ea7\u522b\u7684ALTER ROLE SET\u8bed\u53e5\u4e2d\u4ee5\u4e0d\u540c\u7684\u5355\u4f4d\u8fdb\u884c\u8bbe\u7f6e\u3002\u6709\u5173scheduling_priority\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605pg_cheat_funcs\u7684README\u3002<\/p>\n

\u5728\u786e\u8ba4\u4f18\u5148\u63a7\u5236\u6548\u679c\u65f6\uff0c\u9700\u8981\u6bd4\u8f83\u4ee5\u4e0b\u4e24\u79cd\u6d4b\u91cf\u6a21\u5f0f\u4e0b\u7684pgbench\u6d4b\u91cf\u7ed3\u679c\u3002<\/p>\n

    \n
  1. \n
      \u53ea\u9700\u8981\u4e00\u79cd\u9009\u62e9\u7684\u91ca\u4e49\uff1a<\/ol>\n<\/li>\n<\/ol>\n

      \u5728\u7528\u6237foo1\u548cfoo2\u7684\u4f18\u5148\u5ea6\u76f8\u540c\u7684\u60c5\u51b5\u4e0b\u540c\u65f6\u8fd0\u884cpgbench\u3002<\/p>\n

      \u7531\u4e8efoo1\u548cfoo2\u7684\u4f18\u5148\u5ea6\u76f8\u540c\uff0c\u53ef\u4ee5\u63a8\u6d4b\u51fa\u6bcf\u4e2apgbench\u7684\u6d4b\u91cf\u7ed3\u679c\u5e94\u8be5\u662f\u76f8\u540c\u6c34\u5e73\u7684\u3002<\/p>\n

      \u901a\u8fc7\u964d\u4f4e\u7528\u6237foo2\u7684\u4f18\u5148\u5ea6\uff0c\u540c\u65f6\u5728\u4f18\u5148\u5ea6\u4e0d\u540c\u7684\u7528\u6237foo1\u548cfoo2\u4e4b\u95f4\u8fd0\u884cpgbench\u3002<\/p>\n

      \u7531\u4e8efoo1\u7684\u4f18\u5148\u5ea6\u8f83\u9ad8\uff0c\u53ef\u4ee5\u63a8\u6d4b\u51fapgbench\u7684\u6d4b\u91cf\u7ed3\u679c\u4e2d\uff0cfoo1\u7684\u6027\u80fd\u5e94\u9ad8\u4e8efoo2\u3002<\/p>\n

      \u5f15\u5165pg_cheat_funcs<\/h1>\n
      ## pg_cheat_funcs\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/span>\r\n$ <\/span>wget --no-check-certificate<\/span> https:\/\/github.com\/MasaoFujii\/pg_cheat_funcs\/archive\/master.zip\r\n$ <\/span>unzip master\r\n$ <\/span>rm<\/span> -f<\/span> master\r\n$ <\/span>cd <\/span>pg_cheat_funcs-master\r\n$ <\/span>make USE_PGXS<\/span>=<\/span>1 PG_CONFIG<\/span>=<\/span>\/opt\/pgsql-X.Y.Z\/bin\/pg_config\r\n$ <\/span>make USE_PGXS<\/span>=<\/span>1 PG_CONFIG<\/span>=<\/span>\/opt\/pgsql-X.Y.Z\/bin\/pg_config install<\/span>\r\n\r\n## pg_cheat_funcs\u3092PostgreSQL\u304c\u30ed\u30fc\u30c9\u3059\u308b\u3088\u3046\u306b\u30d1\u30e9\u30e1\u30fc\u30bf\u8a2d\u5b9a<\/span>\r\n$ <\/span>emacs $PGDATA<\/span>\/postgresql.conf\r\nshared_preload_libraries =<\/span> 'pg_cheat_funcs'<\/span>\r\n\r\n## \u8a2d\u5b9a\u5909\u66f4\u3092\u6709\u52b9\u5316\u3059\u308b\u305f\u3081PostgreSQL\u518d\u8d77\u52d5<\/span>\r\n$ <\/span>pg_ctl -D<\/span> $PGDATA<\/span> restart\r\n<\/code><\/pre>\n
      \u51c6\u5907\u6d4b\u91cf<\/h1>\n
      ## \u30e6\u30fc\u30b6foo1\u3068foo2\u306e\u4f5c\u6210<\/span>\r\n$ <\/span>createuser -s<\/span> foo1\r\n$ <\/span>createuser -s<\/span> foo2\r\n\r\n## pgbench\u521d\u671f\u30c7\u30fc\u30bf\u306e\u4f5c\u6210<\/span>\r\n$ <\/span>pgbench -i<\/span> -s100<\/span>\r\n$ <\/span>psql -c<\/span> \"VACUUM ANALYZE\"<\/span>\r\n$ <\/span>psql -c<\/span> \"CHECKPOINT\"<\/span>\r\n<\/code><\/pre>\n
      \u8fdb\u884c\u6d4b\u5b9a\u6a21\u5f0f1<\/h1>\n
      ## \u30e6\u30fc\u30b6foo1\u3068foo2\u3067\u540c\u6642\u306bpgbench\u3092\u5b9f\u884c<\/span>\r\n### foo1\u3068foo2\u306e\u512a\u5148\u5ea6\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u306e0\u306e\u307e\u307e<\/span>\r\n$ <\/span>pgbench -c<\/span> 4 -j<\/span> 4 -T<\/span> 30 -n<\/span> -S<\/span> -U<\/span> foo1 postgres &\r\n$ <\/span>pgbench -c<\/span> 4 -j<\/span> 4 -T<\/span> 30 -n<\/span> -S<\/span> -U<\/span> foo2 postgres &\r\n<\/code><\/pre>\n
      \u6267\u884c\u6a21\u5f0f2\u7684\u6d4b\u91cf<\/h1>\n
      ## \u30e6\u30fc\u30b6foo2\u306e\u512a\u5148\u5ea6\u3092\u6700\u4f4e\u306e19\u306b\u8a2d\u5b9a<\/span>\r\n### foo1\u306e\u512a\u5148\u5ea6\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u306e0\u306e\u307e\u307e<\/span>\r\n$ <\/span>psql -c<\/span> \"ALTER ROLE foo2 SET pg_cheat_funcs.scheduling_priority TO 19\"<\/span>\r\n\r\n## \u30e6\u30fc\u30b6foo1\u3068foo2\u3067\u540c\u6642\u306bpgbench\u3092\u5b9f\u884c<\/span>\r\n$ <\/span>pgbench -c<\/span> 4 -j<\/span> 4 -T<\/span> 30 -n<\/span> -S<\/span> -U<\/span> foo1 postgres &\r\n$ <\/span>pgbench -c<\/span> 4 -j<\/span> 4 -T<\/span> 30 -n<\/span> -S<\/span> -U<\/span> foo2 postgres &\r\n<\/code><\/pre>\n
      \u6d4b\u91cf\u7ed3\u679c<\/h1>\n
      \u6d4b\u8bd5\u6a21\u5f0f1<\/h2>\n
      \u5728foo1\u548cfoo2\u7684\u4f18\u5148\u7ea7\u76f8\u540c\u7684\u60c5\u51b5\u4e0b\uff0cpgbench\u7684\u6d4b\u91cf\u7ed3\u679c\u53d8\u5f97\u76f8\u7b49\u3002<\/p>\n
      \n
      \u30e6\u30fc\u30b6\u512a\u5148\u5ea6\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u4ef6\u6570\u5e73\u5747\u30ec\u30a4\u30c6\u30f3\u30b7(ms)\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8(tps)foo10247,8700.4888,195.2foo20248,4600.4878,214.3<\/div>\n<\/div>\n
      \u6d4b\u91cf\u6a21\u5f0f2<\/h2>\n
      foo1\u7684pgbench\u6e2c\u8a66\u7d50\u679c\uff0c\u512a\u5148\u5ea6\u9ad8\u65bcfoo2\uff0c\u8868\u73fe\u66f4\u51fa\u8272\u3002<\/p>\n
      \n
      \u30e6\u30fc\u30b6\u512a\u5148\u5ea6\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u4ef6\u6570\u5e73\u5747\u30ec\u30a4\u30c6\u30f3\u30b7(ms)\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8(tps)foo10356,8370.33611,894.1foo219136,5640.8794,551.3<\/div>\n<\/div>\n
      \u603b\u7ed3<\/h2>\n
      \u5982\u679c\u9075\u5faa\u7c7b\u4f3c\u4e8e\u8fd9\u6b21\u6d4b\u91cf\u6a21\u5f0f\u7684\u6761\u4ef6\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528pg_cheat_funcs\u7684scheduling_priority\u53c2\u6570\uff0c\u5728PostgreSQL\u4e0a\u5b9e\u73b0\u4e00\u5b9a\u7a0b\u5ea6\u7684\u4f18\u5148\u63a7\u5236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u6211\u5011\u53ef\u4ee5\u901a\u904e\u4e00\u7a2e\u65b9\u6cd5\u4f86\u63a7\u5236PostgreSQL\u9032\u7a0b\u7684\u57f7\u884c\u512a\u5148\u7d1a\uff0c\u5373\u4f7f\u7528pg_cheat_funcs\u63d0\u4f9b\u7684sch […]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-41651","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n\u5728PostgreSQL\u4e2d\u8fdb\u884c\u4f18\u5148\u63a7\u5236 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5728postgresql\u4e2d\u8fdb\u884c\u4f18\u5148\u63a7\u5236\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5728PostgreSQL\u4e2d\u8fdb\u884c\u4f18\u5148\u63a7\u5236\" \/>\n<meta property=\"og:description\" content=\"\u6211\u5011\u53ef\u4ee5\u901a\u904e\u4e00\u7a2e\u65b9\u6cd5\u4f86\u63a7\u5236PostgreSQL\u9032\u7a0b\u7684\u57f7\u884c\u512a\u5148\u7d1a\uff0c\u5373\u4f7f\u7528pg_cheat_funcs\u63d0\u4f9b\u7684sch […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5728postgresql\u4e2d\u8fdb\u884c\u4f18\u5148\u63a7\u5236\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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