{"id":175585,"date":"2024-11-08T07:06:15","date_gmt":"2024-11-07T23:06:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175585\/"},"modified":"2024-11-08T07:06:16","modified_gmt":"2024-11-07T23:06:16","slug":"%e5%a6%82%e4%bd%95%e9%80%9a%e9%81%8esql%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8d%a0%e7%94%a8%e5%85%a7%e5%ad%98%ef%bc%9f-sql%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8d%a0%e7%94%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175585\/","title":{"rendered":"\u5982\u4f55\u901a\u904eSQL\u67e5\u8a62\u6578\u64da\u5eab\u5360\u7528\u5167\u5b58\uff1f (sql\u67e5\u8a62\u6578\u64da\u5eab\u5360\u7528\u5167\u5b58)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e9%80%9a%e9%81%8esql%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8d%a0%e7%94%a8%e5%85%a7%e5%ad%98%ef%bc%9f-ZlcMiHcjfG\">\u5982\u4f55\u901a\u904eSQL\u67e5\u8a62\u6578\u64da\u5eab\u5360\u7528\u5167\u5b58\uff1f<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u6548\u7387\u5c0d\u65bc\u4f01\u696d\u7684\u904b\u71df\u81f3\u95dc\u91cd\u8981\u3002\u4e86\u89e3\u6578\u64da\u5eab\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u53ef\u4ee5\u5e6b\u52a9\u7ba1\u7406\u54e1\u512a\u5316\u6027\u80fd\uff0c\u6e1b\u5c11\u5ef6\u9072\uff0c\u4e26\u63d0\u9ad8\u6574\u9ad4\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u901a\u904eSQL\u67e5\u8a62\u4f86\u6aa2\u67e5\u6578\u64da\u5eab\u7684\u5167\u5b58\u5360\u7528\u60c5\u6cc1\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e8%a6%81%e9%97%9c%e6%b3%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%85%a7%e5%ad%98%e4%bd%bf%e7%94%a8%ef%bc%9f-ZlcMiHcjfG\">\u70ba\u4ec0\u9ebc\u8981\u95dc\u6ce8\u6578\u64da\u5eab\u7684\u5167\u5b58\u4f7f\u7528\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u76f4\u63a5\u5f71\u97ff\u5230\u67e5\u8a62\u7684\u901f\u5ea6\u548c\u7cfb\u7d71\u7684\u97ff\u61c9\u6642\u9593\u3002\u7576\u5167\u5b58\u4f7f\u7528\u904e\u9ad8\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u7cfb\u7d71\u6027\u80fd\u4e0b\u964d\uff0c\u751a\u81f3\u51fa\u73fe\u5d29\u6f70\u7684\u60c5\u6cc1\u3002\u56e0\u6b64\uff0c\u5b9a\u671f\u6aa2\u67e5\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u662f\u6578\u64da\u5eab\u7ba1\u7406\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%85%a7%e5%ad%98%e5%8d%a0%e7%94%a8-ZlcMiHcjfG\">\u5982\u4f55\u67e5\u8a62\u6578\u64da\u5eab\u7684\u5167\u5b58\u5360\u7528<\/h2>\n<p>\u4e0d\u540c\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08DBMS\uff09\u63d0\u4f9b\u4e86\u4e0d\u540c\u7684\u65b9\u5f0f\u4f86\u67e5\u8a62\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u53ca\u5176\u67e5\u8a62\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-mysql-ZlcMiHcjfG\">1. MySQL<\/h3>\n<p>\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u6aa2\u67e5\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff1a<\/p>\n<pre><code>SHOW STATUS LIKE 'Innodb_buffer_pool_size';<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56deInnoDB\u7de9\u885d\u6c60\u7684\u5927\u5c0f\uff0c\u9019\u662fMySQL\u4e2d\u7528\u65bc\u5b58\u5132\u6578\u64da\u548c\u7d22\u5f15\u7684\u4e3b\u8981\u5167\u5b58\u5340\u57df\u3002\u6b64\u5916\uff0c\u9084\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u7372\u53d6\u7576\u524d\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff1a<\/p>\n<pre><code>SELECT \n    variable_name, \n    variable_value \nFROM \n    information_schema.global_status \nWHERE \n    variable_name IN ('Innodb_buffer_pool_size', 'Innodb_buffer_pool_bytes_data', 'Innodb_buffer_pool_bytes_dirty');<\/code><\/pre>\n<h3 id=\"2-postgresql-ZlcMiHcjfG\">2. PostgreSQL<\/h3>\n<p>\u5728PostgreSQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u67e5\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff1a<\/p>\n<pre><code>SELECT \n    name, \n    setting \nFROM \n    pg_settings \nWHERE \n    name IN ('shared_buffers', 'work_mem', 'maintenance_work_mem');<\/code><\/pre>\n<p>\u9019\u4e9b\u53c3\u6578\u5206\u5225\u4ee3\u8868\u5171\u4eab\u7de9\u885d\u5340\u3001\u5de5\u4f5c\u5167\u5b58\u548c\u7dad\u8b77\u5167\u5b58\u7684\u5927\u5c0f\uff0c\u9019\u4e9b\u90fd\u662f\u5f71\u97ffPostgreSQL\u6027\u80fd\u7684\u91cd\u8981\u56e0\u7d20\u3002<\/p>\n<h3 id=\"3-sql-server-ZlcMiHcjfG\">3. SQL Server<\/h3>\n<p>\u5728SQL Server\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u67e5\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff1a<\/p>\n<pre><code>SELECT \n    total_physical_memory_kb, \n    available_physical_memory_kb \nFROM \n    sys.dm_os_sys_memory;<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u7cfb\u7d71\u7684\u7e3d\u7269\u7406\u5167\u5b58\u548c\u53ef\u7528\u7269\u7406\u5167\u5b58\uff0c\u5e6b\u52a9\u7ba1\u7406\u54e1\u4e86\u89e3SQL Server\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u3002<\/p>\n<h2 id=\"%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%e5%85%a7%e5%ad%98%e4%bd%bf%e7%94%a8%e7%9a%84%e5%bb%ba%e8%ad%b0-ZlcMiHcjfG\">\u512a\u5316\u6578\u64da\u5eab\u5167\u5b58\u4f7f\u7528\u7684\u5efa\u8b70<\/h2>\n<ul>\n<li><strong>\u5b9a\u671f\u76e3\u63a7\uff1a<\/strong>\u5b9a\u671f\u6aa2\u67e5\u6578\u64da\u5eab\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u53ca\u6642\u767c\u73fe\u554f\u984c\u3002<\/li>\n<li><strong>\u8abf\u6574\u914d\u7f6e\uff1a<\/strong>\u6839\u64da\u5be6\u969b\u9700\u6c42\u8abf\u6574\u6578\u64da\u5eab\u7684\u5167\u5b58\u914d\u7f6e\u53c3\u6578\u3002<\/li>\n<li><strong>\u512a\u5316\u67e5\u8a62\uff1a<\/strong>\u512a\u5316SQL\u67e5\u8a62\u4ee5\u6e1b\u5c11\u5167\u5b58\u6d88\u8017\u3002<\/li>\n<li><strong>\u5347\u7d1a\u786c\u4ef6\uff1a<\/strong>\u5982\u679c\u5167\u5b58\u4f7f\u7528\u7d93\u5e38\u9054\u5230\u4e0a\u9650\uff0c\u8003\u616e\u5347\u7d1a\u786c\u4ef6\u4ee5\u6eff\u8db3\u9700\u6c42\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ZlcMiHcjfG\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904eSQL\u67e5\u8a62\u6578\u64da\u5eab\u7684\u5167\u5b58\u5360\u7528\u60c5\u6cc1\u662f\u78ba\u4fdd\u6578\u64da\u5eab\u6027\u80fd\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u7121\u8ad6\u662fMySQL\u3001PostgreSQL\u9084\u662fSQL Server\uff0c\u4e86\u89e3\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u90fd\u80fd\u5e6b\u52a9\u7ba1\u7406\u54e1\u505a\u51fa\u66f4\u660e\u667a\u7684\u6c7a\u7b56\u3002\u5b9a\u671f\u76e3\u63a7\u548c\u512a\u5316\u5167\u5b58\u4f7f\u7528\u4e0d\u50c5\u80fd\u63d0\u9ad8\u7cfb\u7d71\u6027\u80fd\uff0c\u9084\u80fd\u5ef6\u9577\u786c\u4ef6\u7684\u4f7f\u7528\u58fd\u547d\u3002\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\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4f7f\u7528SQL\u67e5\u8a62\u4f86\u6aa2\u67e5\u6578\u64da\u5eab\u7684\u5167\u5b58\u5360\u7528\u60c5\u6cc1\uff0c\u512a\u5316\u6027\u80fd\u4e26\u63d0\u9ad8\u6578\u64da\u7ba1\u7406\u6548\u7387\u3002<\/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-175585","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175585","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=175585"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175585\/revisions"}],"predecessor-version":[{"id":175586,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175585\/revisions\/175586"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175585"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175585"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175585"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}