{"id":180506,"date":"2024-11-09T10:50:16","date_gmt":"2024-11-09T02:50:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/180506\/"},"modified":"2024-11-09T10:50:17","modified_gmt":"2024-11-09T02:50:17","slug":"%e6%b7%b1%e5%85%a5%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd%ef%bc%9alinux%e5%85%a7%e6%a0%b8%e5%8f%83%e6%95%b8%e8%aa%bf%e6%95%b4%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/180506\/","title":{"rendered":"\u6df1\u5165\u512a\u5316\u6578\u64da\u5eab\u6027\u80fd\uff1aLinux\u5167\u6838\u53c3\u6578\u8abf\u6574\u89e3\u6790"},"content":{"rendered":"<h1 id=\"%e6%b7%b1%e5%85%a5%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd%ef%bc%9alinux%e5%85%a7%e6%a0%b8%e5%8f%83%e6%95%b8%e8%aa%bf%e6%95%b4%e8%a7%a3%e6%9e%90-WYChIiYxwP\">\u6df1\u5165\u512a\u5316\u6578\u64da\u5eab\u6027\u80fd\uff1aLinux\u5167\u6838\u53c3\u6578\u8abf\u6574\u89e3\u6790<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u6027\u80fd\u7684\u512a\u5316\u5c0d\u65bc\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u7684\u9ad8\u6548\u904b\u884c\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u5927\u578b\u4f01\u696d\u9084\u662f\u4e2d\u5c0f\u578b\u4f01\u696d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u90fd\u76f4\u63a5\u5f71\u97ff\u5230\u696d\u52d9\u7684\u904b\u884c\u6548\u7387\u548c\u7528\u6236\u9ad4\u9a57\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u901a\u904e\u8abf\u6574Linux\u5167\u6838\u53c3\u6578\u4f86\u512a\u5316\u6578\u64da\u5eab\u6027\u80fd\uff0c\u5e6b\u52a9\u7ba1\u7406\u54e1\u548c\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u61c9\u7528\u9019\u4e9b\u6280\u8853\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e8%a6%81%e8%aa%bf%e6%95%b4linux%e5%85%a7%e6%a0%b8%e5%8f%83%e6%95%b8%ef%bc%9f-WYChIiYxwP\">\u70ba\u4ec0\u9ebc\u8981\u8abf\u6574Linux\u5167\u6838\u53c3\u6578\uff1f<\/h2>\n<p>Linux\u4f5c\u70ba\u4e00\u500b\u958b\u6e90\u64cd\u4f5c\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5167\u6838\u53c3\u6578\u4f86\u63a7\u5236\u7cfb\u7d71\u7684\u884c\u70ba\u3002\u9019\u4e9b\u53c3\u6578\u53ef\u4ee5\u5f71\u97ff\u5230\u5167\u5b58\u7ba1\u7406\u3001\u9032\u7a0b\u8abf\u5ea6\u3001I\/O\u64cd\u4f5c\u7b49\u591a\u500b\u65b9\u9762\u3002\u901a\u904e\u8abf\u6574\u9019\u4e9b\u53c3\u6578\uff0c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u4ee5\u91dd\u5c0d\u7279\u5b9a\u7684\u5de5\u4f5c\u8ca0\u8f09\u9032\u884c\u512a\u5316\uff0c\u5f9e\u800c\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e9%97%9c%e9%8d%b5%e5%85%a7%e6%a0%b8%e5%8f%83%e6%95%b8%e5%8f%8a%e5%85%b6%e8%aa%bf%e6%95%b4-WYChIiYxwP\">\u95dc\u9375\u5167\u6838\u53c3\u6578\u53ca\u5176\u8abf\u6574<\/h2>\n<h3 id=\"1-%e8%99%9b%e6%93%ac%e5%85%a7%e5%ad%98%e7%ae%a1%e7%90%86-WYChIiYxwP\">1. \u865b\u64ec\u5167\u5b58\u7ba1\u7406<\/h3>\n<p>\u865b\u64ec\u5167\u5b58\u7684\u7ba1\u7406\u5c0d\u65bc\u6578\u64da\u5eab\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u5e7e\u500b\u91cd\u8981\u7684\u5167\u6838\u53c3\u6578\uff1a<\/p>\n<ul>\n<li><code>vm.swappiness<\/code>\uff1a\u8a72\u53c3\u6578\u63a7\u5236\u7cfb\u7d71\u5728\u4f7f\u7528\u7269\u7406\u5167\u5b58\u6642\u7684\u50be\u5411\u3002\u503c\u8d8a\u4f4e\uff0c\u7cfb\u7d71\u8d8a\u50be\u5411\u65bc\u4f7f\u7528\u7269\u7406\u5167\u5b58\u800c\u4e0d\u662f\u4ea4\u63db\u7a7a\u9593\u3002\u5c0d\u65bc\u6578\u64da\u5eab\uff0c\u5efa\u8b70\u5c07\u5176\u8a2d\u7f6e\u70ba10\u3002<\/li>\n<li><code>vm.dirty_ratio<\/code>\u548c<code>vm.dirty_background_ratio<\/code>\uff1a\u9019\u5169\u500b\u53c3\u6578\u63a7\u5236\u4e86\u7cfb\u7d71\u5728\u5beb\u5165\u78c1\u789f\u4e4b\u524d\u53ef\u4ee5\u4fdd\u7559\u7684\u810f\u9801\u9762\u6bd4\u4f8b\u3002\u9069\u7576\u8abf\u6574\u9019\u4e9b\u53c3\u6578\u53ef\u4ee5\u6e1b\u5c11I\/O\u5ef6\u9072\u3002<\/li>\n<\/ul>\n<h3 id=\"2-%e6%96%87%e4%bb%b6%e6%8f%8f%e8%bf%b0%e7%ac%a6%e9%99%90%e5%88%b6-WYChIiYxwP\">2. \u6587\u4ef6\u63cf\u8ff0\u7b26\u9650\u5236<\/h3>\n<p>\u6578\u64da\u5eab\u901a\u5e38\u9700\u8981\u6253\u958b\u5927\u91cf\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u548c\u8abf\u6574\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u9650\u5236\uff1a<\/p>\n<pre><code>ulimit -n 65536<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u5728\u9ad8\u8ca0\u8f09\u4e0b\u4e0d\u6703\u56e0\u70ba\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0d\u8db3\u800c\u51fa\u73fe\u6027\u80fd\u74f6\u9838\u3002<\/p>\n<h3 id=\"3-tcp-ip%e5%8f%83%e6%95%b8-WYChIiYxwP\">3. TCP\/IP\u53c3\u6578<\/h3>\n<p>\u5c0d\u65bc\u9700\u8981\u7db2\u7d61\u901a\u4fe1\u7684\u6578\u64da\u5eab\uff0cTCP\/IP\u53c3\u6578\u7684\u8abf\u6574\u4e5f\u975e\u5e38\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u5e7e\u500b\u5efa\u8b70\u7684\u53c3\u6578\uff1a<\/p>\n<ul>\n<li><code>net.core.somaxconn<\/code>\uff1a\u8a72\u53c3\u6578\u63a7\u5236\u7cfb\u7d71\u53ef\u4ee5\u63a5\u53d7\u7684\u6700\u5927\u9023\u63a5\u6578\u3002\u5c0d\u65bc\u9ad8\u4e26\u767c\u7684\u6578\u64da\u5eab\u61c9\u7528\uff0c\u5efa\u8b70\u5c07\u5176\u8a2d\u7f6e\u70ba1024\u3002<\/li>\n<li><code>net.ipv4.tcp_fin_timeout<\/code>\uff1a\u8a72\u53c3\u6578\u63a7\u5236TCP\u9023\u63a5\u95dc\u9589\u5f8c\u7684\u7b49\u5f85\u6642\u9593\uff0c\u9069\u7576\u6e1b\u5c11\u6b64\u503c\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7d71\u7684\u9023\u63a5\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b8%ac%e8%a9%a6%e5%92%8c%e7%9b%a3%e6%8e%a7-WYChIiYxwP\">\u6e2c\u8a66\u548c\u76e3\u63a7<\/h2>\n<p>\u5728\u8abf\u6574\u5167\u6838\u53c3\u6578\u5f8c\uff0c\u5fc5\u9808\u9032\u884c\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u6027\u80fd\u7684\u63d0\u5347\u3002\u53ef\u4ee5\u4f7f\u7528\u5de5\u5177\u5982<code>sysbench<\/code>\u6216<code>pgbench<\/code>\u4f86\u9032\u884c\u57fa\u6e96\u6e2c\u8a66\uff0c\u4e26\u4f7f\u7528<code>top<\/code>\u3001<code>htop<\/code>\u548c<code>iostat<\/code>\u7b49\u5de5\u5177\u4f86\u76e3\u63a7\u7cfb\u7d71\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-WYChIiYxwP\">\u7d50\u8ad6<\/h2>\n<p>\u901a\u904e\u5c0dLinux\u5167\u6838\u53c3\u6578\u7684\u6df1\u5165\u8abf\u6574\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u7136\u800c\uff0c\u9019\u4e9b\u8abf\u6574\u9700\u8981\u6839\u64da\u5177\u9ad4\u7684\u61c9\u7528\u5834\u666f\u548c\u5de5\u4f5c\u8ca0\u8f09\u9032\u884c\u8abf\u6574\uff0c\u4e26\u4e14\u5728\u5be6\u65bd\u4e4b\u524d\u61c9\u9032\u884c\u5145\u5206\u7684\u6e2c\u8a66\u548c\u76e3\u63a7\u3002\u96a8\u8457\u6280\u8853\u7684\u767c\u5c55\uff0c\u6301\u7e8c\u5b78\u7fd2\u548c\u512a\u5316\u5c07\u662f\u6bcf\u4f4d\u7cfb\u7d71\u7ba1\u7406\u54e1\u548c\u958b\u767c\u8005\u7684\u5fc5\u4fee\u8ab2\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<code><a href=\"https:\/\/server.hk\">VPS<\/a><\/code>\u548c<code><a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a><\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u8a0eLinux\u5167\u6838\u53c3\u6578\u8abf\u6574\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\uff0c\u5be6\u73fe\u9ad8\u6548\u80fd\u6578\u64da\u8655\u7406\u8207\u7ba1\u7406\u7684\u6700\u4f73\u5be6\u8e10\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-180506","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180506","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=180506"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180506\/revisions"}],"predecessor-version":[{"id":180507,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180506\/revisions\/180507"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=180506"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=180506"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=180506"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}