{"id":44130,"date":"2024-10-06T13:06:17","date_gmt":"2024-10-06T05:06:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/44130\/"},"modified":"2024-10-06T13:06:17","modified_gmt":"2024-10-06T05:06:17","slug":"centos-%e7%b3%bb%e7%b5%b1%e4%b8%8a%e4%b8%8b%e6%96%87%e5%88%87%e6%8f%9b%e7%9a%84%e6%aa%a2%e6%9f%a5%e6%80%9d%e8%b7%af","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/44130\/","title":{"rendered":"CentOS \u7cfb\u7d71\u4e0a\u4e0b\u6587\u5207\u63db\u7684\u6aa2\u67e5\u601d\u8def"},"content":{"rendered":"<h1 id=\"centos-%e7%b3%bb%e7%b5%b1%e4%b8%8a%e4%b8%8b%e6%96%87%e5%88%87%e6%8f%9b%e7%9a%84%e6%aa%a2%e6%9f%a5%e6%80%9d%e8%b7%af-kZeVwSoghV\">CentOS \u7cfb\u7d71\u4e0a\u4e0b\u6587\u5207\u63db\u7684\u6aa2\u67e5\u601d\u8def<\/h1>\n<p>\u5728\u4f3a\u670d\u5668\u7ba1\u7406\u4e2d\uff0c\u7cfb\u7d71\u7684\u6027\u80fd\u512a\u5316\u662f\u6bcf\u4f4d\u7cfb\u7d71\u7ba1\u7406\u54e1\u7684\u91cd\u8981\u4efb\u52d9\u4e4b\u4e00\u3002\u7279\u5225\u662f\u5728\u4f7f\u7528 CentOS \u7cfb\u7d71\u6642\uff0c\u4e0a\u4e0b\u6587\u5207\u63db\uff08Context Switching\uff09\u662f\u4e00\u500b\u95dc\u9375\u7684\u6027\u80fd\u6307\u6a19\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6aa2\u67e5\u548c\u5206\u6790 CentOS \u7cfb\u7d71\u4e2d\u7684\u4e0a\u4e0b\u6587\u5207\u63db\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u7406\u89e3\u7cfb\u7d71\u6027\u80fd\u548c\u8cc7\u6e90\u4f7f\u7528\u60c5\u6cc1\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e4%b8%8a%e4%b8%8b%e6%96%87%e5%88%87%e6%8f%9b%ef%bc%9f-kZeVwSoghV\">\u4ec0\u9ebc\u662f\u4e0a\u4e0b\u6587\u5207\u63db\uff1f<\/h2>\n<p>\u4e0a\u4e0b\u6587\u5207\u63db\u662f\u6307\u64cd\u4f5c\u7cfb\u7d71\u5728\u591a\u500b\u9032\u7a0b\u6216\u7dda\u7a0b\u4e4b\u9593\u5207\u63db\u57f7\u884c\u7684\u904e\u7a0b\u3002\u7576 CPU \u9700\u8981\u5f9e\u4e00\u500b\u9032\u7a0b\u5207\u63db\u5230\u53e6\u4e00\u500b\u9032\u7a0b\u6642\uff0c\u64cd\u4f5c\u7cfb\u7d71\u5fc5\u9808\u4fdd\u5b58\u7576\u524d\u9032\u7a0b\u7684\u72c0\u614b\uff0c\u4e26\u52a0\u8f09\u65b0\u9032\u7a0b\u7684\u72c0\u614b\u3002\u9019\u4e00\u904e\u7a0b\u6703\u6d88\u8017 CPU \u6642\u9593\uff0c\u904e\u591a\u7684\u4e0a\u4e0b\u6587\u5207\u63db\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e8%a6%81%e6%aa%a2%e6%9f%a5%e4%b8%8a%e4%b8%8b%e6%96%87%e5%88%87%e6%8f%9b%ef%bc%9f-kZeVwSoghV\">\u70ba\u4ec0\u9ebc\u8981\u6aa2\u67e5\u4e0a\u4e0b\u6587\u5207\u63db\uff1f<\/h2>\n<p>\u6aa2\u67e5\u4e0a\u4e0b\u6587\u5207\u63db\u7684\u539f\u56e0\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u8b58\u5225\u6027\u80fd\u74f6\u9838\uff1a\u904e\u9ad8\u7684\u4e0a\u4e0b\u6587\u5207\u63db\u7387\u53ef\u80fd\u8868\u660e\u7cfb\u7d71\u8cc7\u6e90\u4e0d\u8db3\u6216\u914d\u7f6e\u4e0d\u7576\u3002<\/li>\n<li>\u512a\u5316\u61c9\u7528\u7a0b\u5e8f\uff1a\u901a\u904e\u5206\u6790\u4e0a\u4e0b\u6587\u5207\u63db\uff0c\u53ef\u4ee5\u627e\u51fa\u9700\u8981\u512a\u5316\u7684\u61c9\u7528\u7a0b\u5e8f\u6216\u670d\u52d9\u3002<\/li>\n<li>\u63d0\u5347\u7cfb\u7d71\u7a69\u5b9a\u6027\uff1a\u4e86\u89e3\u4e0a\u4e0b\u6587\u5207\u63db\u7684\u60c5\u6cc1\u6709\u52a9\u65bc\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u97ff\u61c9\u901f\u5ea6\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%aa%a2%e6%9f%a5%e4%b8%8a%e4%b8%8b%e6%96%87%e5%88%87%e6%8f%9b-kZeVwSoghV\">\u5982\u4f55\u6aa2\u67e5\u4e0a\u4e0b\u6587\u5207\u63db<\/h2>\n<p>\u5728 CentOS \u7cfb\u7d71\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u7a2e\u5de5\u5177\u4f86\u6aa2\u67e5\u4e0a\u4e0b\u6587\u5207\u63db\u7684\u60c5\u6cc1\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-vmstat-%e5%91%bd%e4%bb%a4-kZeVwSoghV\">1. \u4f7f\u7528 `vmstat` \u547d\u4ee4<\/h3>\n<p>`vmstat` \u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u986f\u793a\u7cfb\u7d71\u7684\u865b\u64ec\u5167\u5b58\u3001\u9032\u7a0b\u3001CPU \u6d3b\u52d5\u7b49\u4fe1\u606f\u3002\u8981\u6aa2\u67e5\u4e0a\u4e0b\u6587\u5207\u63db\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>vmstat 1<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u6703\u6bcf\u79d2\u986f\u793a\u4e00\u6b21\u7cfb\u7d71\u7684\u72c0\u614b\u3002\u5728\u8f38\u51fa\u4e2d\uff0c`cs` \u5217\u8868\u793a\u4e0a\u4e0b\u6587\u5207\u63db\u7684\u6b21\u6578\u3002\u901a\u904e\u89c0\u5bdf\u9019\u500b\u6578\u64da\uff0c\u53ef\u4ee5\u4e86\u89e3\u7cfb\u7d71\u7684\u4e0a\u4e0b\u6587\u5207\u63db\u60c5\u6cc1\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-top-%e5%91%bd%e4%bb%a4-kZeVwSoghV\">2. \u4f7f\u7528 `top` \u547d\u4ee4<\/h3>\n<p>`top` \u547d\u4ee4\u63d0\u4f9b\u4e86\u5be6\u6642\u7684\u7cfb\u7d71\u6027\u80fd\u76e3\u63a7\u3002\u5728 `top` \u7684\u754c\u9762\u4e2d\uff0c\u53ef\u4ee5\u6309\u4e0b `Shift + H` \u9375\u4f86\u986f\u793a\u6240\u6709\u7dda\u7a0b\uff0c\u4e26\u67e5\u770b\u4e0a\u4e0b\u6587\u5207\u63db\u7684\u6578\u64da\u3002\u9019\u6a23\u53ef\u4ee5\u66f4\u76f4\u89c0\u5730\u4e86\u89e3\u54ea\u4e9b\u9032\u7a0b\u6216\u7dda\u7a0b\u5c0e\u81f4\u4e86\u8f03\u9ad8\u7684\u4e0a\u4e0b\u6587\u5207\u63db\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8-pidstat-%e5%91%bd%e4%bb%a4-kZeVwSoghV\">3. \u4f7f\u7528 `pidstat` \u547d\u4ee4<\/h3>\n<p>`pidstat` \u662f `sysstat` \u5957\u4ef6\u4e2d\u7684\u4e00\u500b\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u4f86\u76e3\u63a7\u7279\u5b9a\u9032\u7a0b\u7684\u6027\u80fd\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u7279\u5b9a\u9032\u7a0b\u7684\u4e0a\u4e0b\u6587\u5207\u63db\u60c5\u6cc1\uff1a<\/p>\n<pre><code>pidstat -w 1<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u6703\u6bcf\u79d2\u986f\u793a\u4e00\u6b21\u9032\u7a0b\u7684\u4e0a\u4e0b\u6587\u5207\u63db\u6578\u64da\uff0c\u5e6b\u52a9\u7ba1\u7406\u54e1\u627e\u51fa\u554f\u984c\u9032\u7a0b\u3002<\/p>\n<h2 id=\"%e5%88%86%e6%9e%90%e4%b8%8a%e4%b8%8b%e6%96%87%e5%88%87%e6%8f%9b%e6%95%b8%e6%93%9a-kZeVwSoghV\">\u5206\u6790\u4e0a\u4e0b\u6587\u5207\u63db\u6578\u64da<\/h2>\n<p>\u5728\u6536\u96c6\u5230\u4e0a\u4e0b\u6587\u5207\u63db\u7684\u6578\u64da\u5f8c\uff0c\u63a5\u4e0b\u4f86\u9700\u8981\u9032\u884c\u5206\u6790\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5206\u6790\u7684\u601d\u8def\uff1a<\/p>\n<ul>\n<li>\u5982\u679c\u4e0a\u4e0b\u6587\u5207\u63db\u7387\u904e\u9ad8\uff08\u4f8b\u5982\u6bcf\u79d2\u8d85\u904e 1000 \u6b21\uff09\uff0c\u53ef\u80fd\u9700\u8981\u6aa2\u67e5\u7cfb\u7d71\u7684 CPU \u4f7f\u7528\u7387\u548c\u9032\u7a0b\u6578\u91cf\u3002<\/li>\n<li>\u5206\u6790\u9ad8\u4e0a\u4e0b\u6587\u5207\u63db\u7684\u9032\u7a0b\uff0c\u67e5\u770b\u5176\u662f\u5426\u5b58\u5728\u8cc7\u6e90\u7af6\u722d\u6216\u6b7b\u9396\u7684\u60c5\u6cc1\u3002<\/li>\n<li>\u8003\u616e\u8abf\u6574\u9032\u7a0b\u7684\u512a\u5148\u7d1a\uff0c\u6216\u4f7f\u7528\u66f4\u9ad8\u6548\u7684\u7b97\u6cd5\u4f86\u6e1b\u5c11\u4e0a\u4e0b\u6587\u5207\u63db\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-kZeVwSoghV\">\u7d50\u8ad6<\/h2>\n<p>\u4e0a\u4e0b\u6587\u5207\u63db\u662f\u5f71\u97ff CentOS \u7cfb\u7d71\u6027\u80fd\u7684\u91cd\u8981\u56e0\u7d20\u4e4b\u4e00\u3002\u901a\u904e\u4f7f\u7528 `vmstat`\u3001`top` \u548c `pidstat` \u7b49\u5de5\u5177\uff0c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u4ee5\u6709\u6548\u5730\u6aa2\u67e5\u548c\u5206\u6790\u4e0a\u4e0b\u6587\u5207\u63db\u7684\u60c5\u6cc1\uff0c\u5f9e\u800c\u512a\u5316\u7cfb\u7d71\u6027\u80fd\u3002\u4e86\u89e3\u4e0a\u4e0b\u6587\u5207\u63db\u7684\u539f\u7406\u548c\u6aa2\u67e5\u65b9\u6cd5\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u4f3a\u670d\u5668\u7684\u7a69\u5b9a\u6027\u548c\u6548\u7387\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u53ca\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 CentOS \u7cfb\u7d71\u4e0a\u4e0b\u6587\u5207\u63db\u7684\u6aa2\u67e5\u601d\u8def\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6548\u7387\uff0c\u78ba\u4fdd\u7cfb\u7d71\u904b\u884c\u6d41\u66a2\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-44130","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44130","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=44130"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44130\/revisions"}],"predecessor-version":[{"id":44131,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44130\/revisions\/44131"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=44130"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=44130"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=44130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}