{"id":76008,"date":"2024-10-16T03:05:14","date_gmt":"2024-10-15T19:05:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76008\/"},"modified":"2024-10-16T03:05:14","modified_gmt":"2024-10-15T19:05:14","slug":"mysql-%e7%b7%a9%e8%a1%9d%e6%b1%a0buffer-pool%ef%bc%8c%e7%b5%82%e6%96%bc%e6%87%82%e4%ba%86%ef%bc%81%ef%bc%81%ef%bc%81","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76008\/","title":{"rendered":"MySQL \u7de9\u885d\u6c60(buffer pool)\uff0c\u7d42\u65bc\u61c2\u4e86\uff01\uff01\uff01"},"content":{"rendered":"<h1 id=\"mysql-%e7%b7%a9%e8%a1%9d%e6%b1%a0-buffer-pool%ef%bc%8c%e7%b5%82%e6%96%bc%e6%87%82%e4%ba%86%ef%bc%81%ef%bc%81%ef%bc%81-mNOhMJDlKf\">MySQL \u7de9\u885d\u6c60 (Buffer Pool)\uff0c\u7d42\u65bc\u61c2\u4e86\uff01\uff01\uff01<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u6027\u80fd\u512a\u5316\u662f\u6bcf\u4f4d\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u90fd\u5fc5\u9808\u9762\u5c0d\u7684\u6311\u6230\u3002MySQL \u4f5c\u70ba\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u958b\u6e90\u6578\u64da\u5eab\uff0c\u5176\u6027\u80fd\u512a\u5316\u7684\u95dc\u9375\u4e4b\u4e00\u4fbf\u662f\u7de9\u885d\u6c60\uff08Buffer Pool\uff09\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e MySQL \u7de9\u885d\u6c60\u7684\u6982\u5ff5\u3001\u529f\u80fd\u53ca\u5176\u914d\u7f6e\u65b9\u6cd5\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u9019\u4e00\u91cd\u8981\u7d44\u4ef6\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%b7%a9%e8%a1%9d%e6%b1%a0%ef%bc%9f-mNOhMJDlKf\">\u4ec0\u9ebc\u662f\u7de9\u885d\u6c60\uff1f<\/h2>\n<p>\u7de9\u885d\u6c60\u662f MySQL InnoDB \u5b58\u5132\u5f15\u64ce\u4e2d\u7684\u4e00\u500b\u6838\u5fc3\u7d44\u4ef6\uff0c\u4e3b\u8981\u7528\u65bc\u5b58\u5132\u6578\u64da\u9801\u548c\u7d22\u5f15\u9801\u3002\u7576\u6578\u64da\u5eab\u57f7\u884c\u67e5\u8a62\u6642\uff0c\u7de9\u885d\u6c60\u80fd\u5920\u5feb\u901f\u63d0\u4f9b\u6240\u9700\u7684\u6578\u64da\uff0c\u5f9e\u800c\u6e1b\u5c11\u78c1\u789f I\/O \u64cd\u4f5c\uff0c\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b7%a9%e8%a1%9d%e6%b1%a0%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-mNOhMJDlKf\">\u7de9\u885d\u6c60\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>\u7576\u4e00\u500b\u67e5\u8a62\u8acb\u6c42\u5230\u9054 MySQL \u6642\uff0c\u7cfb\u7d71\u9996\u5148\u6703\u6aa2\u67e5\u7de9\u885d\u6c60\u4e2d\u662f\u5426\u5df2\u7d93\u5b58\u5728\u6240\u9700\u7684\u6578\u64da\u9801\u3002\u5982\u679c\u5b58\u5728\uff0c\u5247\u76f4\u63a5\u5f9e\u7de9\u885d\u6c60\u4e2d\u8b80\u53d6\uff0c\u9019\u6a23\u53ef\u4ee5\u5927\u5e45\u5ea6\u964d\u4f4e\u78c1\u789f\u7684\u8b80\u53d6\u6642\u9593\u3002\u5982\u679c\u7de9\u885d\u6c60\u4e2d\u4e0d\u5b58\u5728\u8a72\u6578\u64da\u9801\uff0c\u5247\u9700\u8981\u5f9e\u78c1\u789f\u4e2d\u8b80\u53d6\uff0c\u4e26\u5c07\u5176\u52a0\u8f09\u5230\u7de9\u885d\u6c60\u4e2d\u3002<\/p>\n<p>\u7de9\u885d\u6c60\u7684\u5927\u5c0f\u5c0d\u65bc\u6578\u64da\u5eab\u7684\u6027\u80fd\u5f71\u97ff\u6975\u5927\u3002\u4e00\u822c\u4f86\u8aaa\uff0c\u7de9\u885d\u6c60\u7684\u5927\u5c0f\u61c9\u8a72\u8a2d\u7f6e\u70ba\u53ef\u7528\u5167\u5b58\u7684 70% \u5230 80%\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6709\u8db3\u5920\u7684\u5167\u5b58\u4f86\u5b58\u5132\u7d93\u5e38\u8a2a\u554f\u7684\u6578\u64da\u9801\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e9%85%8d%e7%bd%ae%e7%b7%a9%e8%a1%9d%e6%b1%a0-mNOhMJDlKf\">\u5982\u4f55\u914d\u7f6e\u7de9\u885d\u6c60<\/h2>\n<p>\u8981\u914d\u7f6e MySQL \u7684\u7de9\u885d\u6c60\u5927\u5c0f\uff0c\u53ef\u4ee5\u901a\u904e\u4fee\u6539 MySQL \u914d\u7f6e\u6587\u4ef6\uff08\u901a\u5e38\u662f my.cnf \u6216 my.ini\uff09\u4f86\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u914d\u7f6e\u7de9\u885d\u6c60\u5927\u5c0f\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>[mysqld]\ninnodb_buffer_pool_size = 1G\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u5c07\u7de9\u885d\u6c60\u7684\u5927\u5c0f\u8a2d\u7f6e\u70ba 1GB\u3002\u6839\u64da\u5be6\u969b\u7684\u7cfb\u7d71\u5167\u5b58\u548c\u6578\u64da\u5eab\u7684\u9700\u6c42\uff0c\u60a8\u53ef\u4ee5\u8abf\u6574\u9019\u500b\u503c\u3002<\/p>\n<h2 id=\"%e7%b7%a9%e8%a1%9d%e6%b1%a0%e7%9a%84%e7%9b%a3%e6%8e%a7-mNOhMJDlKf\">\u7de9\u885d\u6c60\u7684\u76e3\u63a7<\/h2>\n<p>\u70ba\u4e86\u78ba\u4fdd\u7de9\u885d\u6c60\u7684\u6709\u6548\u904b\u884c\uff0c\u5b9a\u671f\u76e3\u63a7\u5176\u6027\u80fd\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002MySQL \u63d0\u4f9b\u4e86\u4e00\u4e9b\u7cfb\u7d71\u8b8a\u91cf\u4f86\u5e6b\u52a9\u6211\u5011\u76e3\u63a7\u7de9\u885d\u6c60\u7684\u72c0\u614b\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><code>Innodb_buffer_pool_size<\/code>\uff1a\u7de9\u885d\u6c60\u7684\u5927\u5c0f\u3002<\/li>\n<li><code>Innodb_buffer_pool_pages_total<\/code>\uff1a\u7de9\u885d\u6c60\u4e2d\u7684\u7e3d\u9801\u6578\u3002<\/li>\n<li><code>Innodb_buffer_pool_pages_free<\/code>\uff1a\u7de9\u885d\u6c60\u4e2d\u7a7a\u9592\u7684\u9801\u6578\u3002<\/li>\n<li><code>Innodb_buffer_pool_pages_dirty<\/code>\uff1a\u7de9\u885d\u6c60\u4e2d\u5df2\u4fee\u6539\u4f46\u5c1a\u672a\u5beb\u5165\u78c1\u789f\u7684\u9801\u6578\u3002<\/li>\n<\/ul>\n<p>\u901a\u904e\u9019\u4e9b\u8b8a\u91cf\uff0c\u60a8\u53ef\u4ee5\u8a55\u4f30\u7de9\u885d\u6c60\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-mNOhMJDlKf\">\u7d50\u8ad6<\/h2>\n<p>MySQL \u7684\u7de9\u885d\u6c60\u662f\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u7684\u95dc\u9375\u7d44\u4ef6\u4e4b\u4e00\u3002\u901a\u904e\u5408\u7406\u914d\u7f6e\u548c\u76e3\u63a7\u7de9\u885d\u6c60\uff0c\u60a8\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\uff0c\u6e1b\u5c11\u78c1\u789f I\/O \u64cd\u4f5c\u3002\u4e86\u89e3\u7de9\u885d\u6c60\u7684\u5de5\u4f5c\u539f\u7406\u53ca\u5176\u914d\u7f6e\u65b9\u6cd5\uff0c\u5c07\u6709\u52a9\u65bc\u60a8\u5728\u65e5\u5e38\u7684\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u505a\u51fa\u66f4\u660e\u667a\u7684\u6c7a\u7b56\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u53ef\u9760\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u4e86\u89e3 MySQL \u7de9\u885d\u6c60(buffer pool)\u7684\u904b\u4f5c\u539f\u7406\uff0c\u638c\u63e1\u5176\u512a\u5316\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\uff0c\u8b93\u4f60\u7d42\u65bc\u61c2\u4e86\uff01<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-76008","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76008","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=76008"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76008\/revisions"}],"predecessor-version":[{"id":76009,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76008\/revisions\/76009"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76008"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76008"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}