{"id":41387,"date":"2023-03-28T02:11:26","date_gmt":"2023-08-11T01:57:02","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90postgresql%e3%80%91%e5%85%b3%e4%ba%8e%e5%86%85%e5%ad%98%e7%ae%a1%e7%90%86%e7%9a%84%e7%ac%94%e8%ae%b0\/"},"modified":"2024-04-29T20:49:22","modified_gmt":"2024-04-29T12:49:22","slug":"%e3%80%90postgresql%e3%80%91%e5%85%b3%e4%ba%8e%e5%86%85%e5%ad%98%e7%ae%a1%e7%90%86%e7%9a%84%e7%ac%94%e8%ae%b0","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90postgresql%e3%80%91%e5%85%b3%e4%ba%8e%e5%86%85%e5%ad%98%e7%ae%a1%e7%90%86%e7%9a%84%e7%ac%94%e8%ae%b0\/","title":{"rendered":"\u3010PostgreSQL\u3011\u5173\u4e8e\u5185\u5b58\u7ba1\u7406\u7684\u7b14\u8bb0"},"content":{"rendered":"<h2>\u9996\u5148<\/h2>\n<p>\u4e0d\u4ec5\u9650\u4e8ePostgreSQL\uff0c\u6211\u89c9\u5f97\u5bf9\u4e8e\u5185\u5b58\u7ba1\u7406\u7684\u7406\u89e3\u662f\u5fc5\u8981\u7684\u3002<br 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decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d46d937434c4406ca672b\/11-0.png\" alt=\"\u30e1\u30e2\u30ea\u69cb\u6210.png\" \/><\/div>\n<h3>\u5171\u4eab\u5185\u5b58\u533a\u57df<\/h3>\n<p>\u88ab\u591a\u4e2a\u8fdb\u7a0b\u5f15\u7528\u548c\u66f4\u65b0\u7684\u5171\u4eab\u533a\u57df\u3002\u5728\u542f\u52a8PostgreSQL\u65f6\uff0c\u4f1a\u5c06PostgreSQL\u7684\u914d\u7f6e\u53c2\u6570\uff08shared_buffers\uff09\u7684\u503c\u4e0eLinux\u7684\u5185\u6838\u53c2\u6570\uff08shmmax\uff09\u7684\u503c\u8fdb\u884c\u6bd4\u8f83\uff0c\u5982\u679cshared_buffers\u7684\u503c\u5927\u4e8eshmmax\uff0c\u5219\u4f1a\u8f93\u51fa\u9519\u8bef\u4fe1\u606f\u3002\u5171\u4eab\u5185\u5b58\u533a\u57df\u8fd8\u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u533a\u57df\uff1a<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5171\u6709\u30d0\u30c3\u30d5\u30a1\uff08shared_buffers\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30c6\u30fc\u30d6\u30eb\u3084\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u30c7\u30fc\u30bf\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u9818\u57df<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">WAL\u30d0\u30c3\u30d5\u30a1\uff08wal_buffers\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30c7\u30a3\u30b9\u30af\u306b\u66f8\u304d\u8fbc\u307e\u308c\u3066\u3044\u306a\u3044\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30ed\u30b0\uff08WAL\uff09\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u9818\u57df<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u7a7a\u304d\u9818\u57df\u30de\u30c3\u30d7\uff08Free Space Map\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30c6\u30fc\u30d6\u30eb\u4e0a\u306e\u5229\u7528\u53ef\u80fd\u306a\u9818\u57df\u3092\u6307\u3057\u793a\u3059\u60c5\u5831\u3092\u6271\u3046\u9818\u57df\u3002\u30c6\u30fc\u30d6\u30eb\u3084\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u5404\u30da\u30fc\u30b8\u306b\u3069\u306e\u7a0b\u5ea6\u306e\u7a7a\u304d\u30b9\u30da\u30fc\u30b9\u304c\u3042\u308b\u304b\u3092\u8ffd\u8de1\u3059\u308b\u305f\u3081\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u53ef\u8996\u6027\u30de\u30c3\u30d7\uff08Visibility Map\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5404\u30c6\u30fc\u30d6\u30eb\u30da\u30fc\u30b8\u5185\u306e\u884c\u304c\u5168\u3066\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u304b\u3089\u898b\u3066\u53ef\u8996\u304b\u3069\u3046\u304b\u3092\u8ffd\u8de1\u3059\u308b\u305f\u3081\u306e\u9818\u57df\u3002\u30d0\u30ad\u30e5\u30fc\u30e0\u51e6\u7406\u306e\u9ad8\u901f\u5316\u306e\u305f\u3081\u306b\u3001\u51e6\u7406\u304c\u5fc5\u8981\u306a\u30da\u30fc\u30b8\u304b\u3069\u3046\u304b\u3092\u53ef\u8996\u6027\u30de\u30c3\u30d7\u3067\u5224\u65ad\u3057\u307e\u3059\u3002<\/ul>\n<h3>\u8fdb\u7a0b\u5185\u5b58\u533a\u57df<\/h3>\n<p>\u6bcf\u4e2a\u540e\u7aef\u8fdb\u7a0b\u90fd\u6709\u5176\u4e13\u7528\u7684\u5de5\u4f5c\u5185\u5b58\u7a7a\u95f4\uff0c\u6839\u636e\u4ee5\u4e0b\u65b9\u5f0f\u8fdb\u884c\u5206\u7c7b\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4f5c\u696d\u30e1\u30e2\u30ea\uff08work_mem\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30af\u30a8\u30ea\u64cd\u4f5c\u3067\u884c\u308f\u308c\u308b\u30bd\u30fc\u30c8\u3084\u30cf\u30c3\u30b7\u30e5\u30c6\u30fc\u30d6\u30eb\u64cd\u4f5c\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u30e1\u30e2\u30ea\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4f5c\u696d\u30e1\u30e2\u30ea\u3092\u9069\u5207\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u6027\u80fd\u306e\u5411\u4e0a\u304c\u671f\u5f85\u3067\u304d\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4f5c\u696d\u30e1\u30e2\u30ea\u306b\u5927\u304d\u306a\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u30e1\u30e2\u30ea\u5727\u8feb\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u7528\u4f5c\u696d\u30e1\u30e2\u30ea\uff08maintenance_work_mem\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">VACUUM\u3001CREATE INDEX\u306a\u3069\u306b\u4f7f\u7528\u3055\u308c\u308b\u30e1\u30e2\u30ea\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6642\u9593\u306e\u77ed\u7e2e\u306b\u306f\u3001work_mem\u3088\u308a\u5927\u304d\u3081\u306e\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u671b\u307e\u3057\u3044\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4e00\u6642\u30d0\u30c3\u30d5\u30a1\uff08temp_buffers\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30d7\u30ed\u30bb\u30b9\u3054\u3068\u306b\u4f5c\u6210\u3055\u308c\u308b\u4e00\u6642\u30c6\u30fc\u30d6\u30eb\u7528\u306e\u30e1\u30e2\u30ea\u9818\u57df\u3002<\/ul>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u9601\u4e0b\u662f\u5426\u5bf9\u5185\u5b58\u7ba1\u7406\u6709\u66f4\u6df1\u5165\u7684\u7406\u89e3\uff1f<br \/>\n\u5982\u679c\u7406\u89e3\u4e86\u5185\u5b58\uff0c\u53ef\u80fd\u5bf9\u63d0\u5347\u6570\u636e\u5e93\u6027\u80fd\u6709\u6240\u5e2e\u52a9\u3002<br \/>\n\u611f\u8c22\u60a8\u7684\u9605\u8bfb\u81f3\u6700\u540e\u3002<\/p>\n<h2>\u8bf7\u53c2\u7167\u4e0b\u9762\u7684\u5185\u5bb9\u8fdb\u884c\u4e2d\u6587\u672c\u5730\u5316\u7684\u6539\u5199\uff0c\u53ea\u9700\u8981\u7ed9\u51fa\u4e00\u4e2a\u9009\u9879\uff1a<\/h2>\n<p>&nbsp;<\/p>\n<section>\u5728\u6570\u636e\u5e93\u4e2d\uff0c\u53ef\u6269\u5c55\u6027\u662f\u6307\u662f\u5426\u80fd\u5728\u6570\u636e\u5e93\u7684\u4f7f\u7528\u6269\u5927\u7684\u60c5\u51b5\u4e0b\u4fdd\u6301\u6216\u63d0\u5347\u6027\u80fd\uff0c\u5305\u62ec\u6570\u636e\u91cf\u589e\u52a0\u3001\u540c\u65f6\u8bbf\u95ee\u6570\u589e\u52a0\u4ee5\u53ca\u5904\u7406\u66f4\u590d\u6742\u67e5\u8be2\u7684\u80fd\u529b\u3002<\/section>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u4e0d\u4ec5\u9650\u4e8ePostgreSQL\uff0c\u6211\u89c9\u5f97\u5bf9\u4e8e\u5185\u5b58\u7ba1\u7406\u7684\u7406\u89e3\u662f\u5fc5\u8981\u7684\u3002 \u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5c06\u603b\u7ed3\u4e3a\u4e86\u52a0\u6df1\u5bf9\u5185\u5b58\u7684 [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-41387","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u3010PostgreSQL\u3011\u5173\u4e8e\u5185\u5b58\u7ba1\u7406\u7684\u7b14\u8bb0 - 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\/\u3010postgresql\u3011\u5173\u4e8e\u5185\u5b58\u7ba1\u7406\u7684\u7b14\u8bb0\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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