{"id":36649,"date":"2026-10-16T16:38:51","date_gmt":"2026-10-16T08:38:51","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-cn\/diagnosing-slow-japan-servers-with-low-cpu\/"},"modified":"2026-10-16T16:50:52","modified_gmt":"2026-10-16T08:50:52","slug":"diagnosing-slow-japan-servers-with-low-cpu","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/blog\/diagnosing-slow-japan-servers-with-low-cpu\/","title":{"rendered":"\u5728 CPU \u4f7f\u7528\u7387\u4e0d\u9ad8\u65f6\u8bca\u65ad\u65e5\u672c\u670d\u52a1\u5668\u53d8\u6162\u95ee\u9898"},"content":{"rendered":"<p>\n    \u4f60\u6253\u5f00 Grafana \u6216 htop\uff0c\u770b\u4e86\u4e00\u773c\u65e5\u672c\u8282\u70b9\uff1aCPU \u53ea\u6709 15%\uff0c\u5185\u5b58\u770b\u8d77\u6765\u4e5f\u5f88\u6b63\u5e38\uff0c\u8d1f\u8f7d\u5e73\u5747\u503c\u5f88\u5e73\u7a33\uff0c\u4f46\u8bf7\u6c42\u5c31\u662f\u5f88\u6162\uff0c\u76d1\u63a7\u5927\u76d8\u4e00\u7247\u7ea2\u3002\u8fd9\u79cd\u300c\u56fe\u8868\u5f88\u6f02\u4eae\u3001\u5ef6\u8fdf\u5374\u5f88\u4e11\u964b\u300d\u7684\u53cd\u5dee\uff0c\u624d\u662f\u5927\u591a\u6570<br \/>\n    <a target=\"_self\" href=\"https:\/\/www.varidata.com\/zh-cn\/server\/tokyo\/cn2\/\">\u65e5\u672c\u670d\u52a1\u5668<\/a><br \/>\n    \u6027\u80fd\u6392\u67e5\u771f\u6b63\u7684\u8d77\u70b9\u3002\n  <\/p>\n<h2><strong>\u6838\u5fc3\u95ee\u9898\uff1aCPU \u4f4e\u4e0d\u4ee3\u8868\u670d\u52a1\u5668\u5c31\u5feb<\/strong><\/h2>\n<p>\n    \u5bf9\u6280\u672f\u56e2\u961f\u6765\u8bf4\uff0c\u201cCPU \u4e0d\u9ad8\u6240\u4ee5\u673a\u5668\u6ca1\u95ee\u9898\u201d\u8fd9\u4e2a\u5047\u8bbe\uff0c\u662f\u7ebf\u4e0a\u73af\u5883\u91cc\u4ee3\u4ef7\u6700\u9ad8\u7684\u9519\u89c9\u4e4b\u4e00\u3002\u4e00\u53f0\u670d\u52a1\u5668\u53ef\u4ee5\u628a\u5927\u90e8\u5206\u65f6\u95f4\u90fd\u82b1\u5728\u7b49\u5f85 I\/O\u3001\u5361\u5728\u62e5\u585e\u7684 TCP \u8def\u5f84\u540e\u9762\uff0c\u6216\u8005\u88ab\u67d0\u4e2a\u7f13\u6162\u7684\u4e0a\u6e38\u4f9d\u8d56\u963b\u585e\u4f4f\uff0c\u800c CPU \u8ba1\u6570\u5668\u4f9d\u7136\u4e4f\u5584\u53ef\u9648\u3002\u65e5\u672c\u8282\u70b9\u4f1a\u653e\u5927\u8fd9\u79cd\u73b0\u8c61\uff0c\u56e0\u4e3a\u4ece\u4e2d\u56fd\u3001\u5317\u7f8e\u6216\u6b27\u6d32\u5230\u4e1c\u4eac\u3001\u2f24\u962a\u673a\u623f\u7684\u7f51\u7edc\u8def\u5f84\uff0c\u5f80\u5f80\u53e0\u52a0\u4e86\u590d\u6742\u7684\u8def\u7531\u3001\u8fd0\u8425\u5546\u4e92\u8054\u5173\u7cfb\u548c\u5e26\u5bbd\u9650\u5236\uff0c\u518d\u52a0\u4e0a\u4f60\u672c\u5730\u81ea\u8eab\u7684\u74f6\u9888\u3002\n  <\/p>\n<p>\n    \u7528\u7aef\u5230\u7aef\u5ef6\u8fdf\u800c\u4e0d\u662f\u201cCPU \u4f7f\u7528\u7387\u767e\u5206\u6bd4\u201d\u6765\u601d\u8003\uff0c\u662f\u628a\u666e\u901a\u8fd0\u7ef4\u548c\u52a1\u5b9e SRE \u533a\u5206\u5f00\u6765\u7684\u601d\u7ef4\u65b9\u5f0f\u3002\u5f53\u67d0\u4e2a\u65e5\u672c\u8282\u70b9\u8868\u73b0\u201c\u5f88\u6162\u201d\u65f6\uff0c\u4f60\u5e94\u8be5\u628a CPU \u4f7f\u7528\u7387\u5f53\u6210\u6574\u4e2a\u6027\u80fd\u56fe\u91cc\u6781\u5c0f\u7684\u4e00\u5757\u4fe1\u606f\uff0c\u800c\u628a\u89c6\u91ce\u6269\u5c55\u5230\u5185\u6838\u3001\u7f51\u5361\u3001\u78c1\u76d8\u3001\u8fd0\u884c\u65f6\u3001\u6570\u636e\u5e93\u3001CDN \u4ee5\u53ca\u4e0a\u6e38\u670d\u52a1\u7b49\u5168\u94fe\u8def\u3002\n  <\/p>\n<h2><strong>\u7406\u89e3\u65e5\u672c\u670d\u52a1\u5668\u5ef6\u8fdf\u7684\u6574\u4f53\u6a21\u578b<\/strong><\/h2>\n<p>\n    \u4e0e\u5176\u80e1\u4e71\u5c1d\u8bd5\u5404\u79cd\u8c03\u6574\uff0c\u4e0d\u5982\u5148\u642d\u4e00\u4e2a\u7ed3\u6784\u5316\u7684\u6a21\u578b\uff0c\u5f04\u6e05\u4e00\u6761\u8bf7\u6c42\u662f\u5982\u4f55\u5728\u7cfb\u7edf\u4e2d\u6d41\u52a8\u7684\u3002\u9ad8\u5c42\u6b21\u6765\u770b\uff0c\u4e00\u4e2a\u6253\u5230\u65e5\u672c\u5b9e\u4f8b\u7684 HTTP \u8bf7\u6c42\uff0c\u5927\u81f4\u4f1a\u7ecf\u5386\u4e0b\u9762\u8fd9\u4e9b\u9636\u6bb5\uff1a\n  <\/p>\n<ol>\n<li>\u5ba2\u6237\u7aef\u5728\u56fd\u9645\u6216\u533a\u57df\u7ebf\u8def\u4e0a\u53d1\u8d77 TCP \u4e09\u6b21\u63e1\u624b\u3002<\/li>\n<li>\u6570\u636e\u5305\u7a7f\u8fc7\u591a\u4e2a\u8fd0\u8425\u5546\u3001IXP\uff0c\u751a\u81f3\u53ef\u80fd\u7ecf\u8fc7\u6d77\u5e95\u5149\u7f06\uff0c\u6700\u540e\u624d\u62b5\u8fbe\u65e5\u672c\u673a\u623f\u3002<\/li>\n<li>\u8fb9\u7f18\u8282\u70b9\u6216\u8d1f\u8f7d\u5747\u8861\u5668\u628a\u6d41\u91cf\u8f6c\u53d1\u7ed9\u5e94\u7528\u8282\u70b9\uff08\u865a\u673a\u3001\u88f8\u91d1\u5c5e\u6216\u5bb9\u5668\uff09\u3002<\/li>\n<li>\u5185\u6838\u8c03\u5ea6\u8fdb\u7a0b\u6216\u5bb9\u5668\u5185\u7684 worker\uff0c\u8bfb\u53d6\u8bf7\u6c42\u5e76\u5411\u4e0a\u4f20\u9012\u7ed9\u534f\u8bae\u6808\u548c\u5e94\u7528\u3002<\/li>\n<li>\u5e94\u7528\u53d1\u8d77\u672c\u5730\u8c03\u7528\uff1a\u78c1\u76d8 I\/O\u3001\u7f13\u5b58\u67e5\u8be2\u3001\u6570\u636e\u5e93\u67e5\u8be2\u3001\u5bf9\u5176\u4ed6\u670d\u52a1\u7684 RPC \u7b49\u3002<\/li>\n<li>\u6700\u7ec8\u628a\u54cd\u5e94\u5199\u56de\u5230 socket\uff0c\u7ecf\u7531\u540c\u6837\u7684\u8def\u5f84\u56de\u4f20\u5230\u5ba2\u6237\u7aef\u3002<\/li>\n<\/ol>\n<p>\n    \u8fd9\u6761\u94fe\u8def\u4e0a\u7684\u4efb\u610f\u4e00\u6b65\uff0c\u90fd\u53ef\u80fd\u662f\u771f\u6b63\u7684\u74f6\u9888\uff0c\u800c CPU \u8ba1\u6570\u5668\u4f9d\u7136\u5f88\u201c\u5b89\u9759\u201d\u3002\u4f60\u7684\u4efb\u52a1\u5c31\u662f\u627e\u51fa\u5230\u5e95\u662f\u54ea\u4e00\u6bb5\u5728\u5361\u987f\u3002\u8fd9\u9700\u8981\u771f\u5b9e\u7684\u89c2\u6d4b\u6570\u636e\uff0c\u800c\u4e0d\u662f\u62cd\u8111\u888b\uff1a\u7528 traceroute \u548c MTR \u67e5\u8def\u5f84\uff0c\u7528\u7cfb\u7edf\u6307\u6807\u770b I\/O \u548c\u5185\u5b58\uff0c\u7528 APM \u770b\u5e94\u7528\u8c03\u7528\u94fe\uff0c\u7528\u6570\u636e\u5e93\u7ea7\u522b\u7684\u89c2\u6d4b\u624b\u6bb5\u770b\u67e5\u8be2\u60c5\u51b5\u3002\n  <\/p>\n<h2><strong>\u7f51\u7edc\u73b0\u5b9e\uff1a\u5ef6\u8fdf\u3001\u6296\u52a8\u548c\u4e22\u5305<\/strong><\/h2>\n<p>\n    \u5730\u56fe\u4e0a\u770b\uff0c\u65e5\u672c\u79bb\u4e0d\u5c11\u4e9a\u6d32\u56fd\u5bb6\u90fd\u4e0d\u8fdc\uff0c\u4f46\u7269\u7406\u89c4\u5f8b\u548c\u7535\u4fe1\u653f\u7b56\u53ef\u4e0d\u770b\u5730\u56fe\u3002\u6d41\u91cf\u53ef\u80fd\u5728\u591a\u4e2a\u8fd0\u8425\u5546\u4e4b\u95f4\u300c\u6253\u8f6c\u300d\uff0c\u6216\u8005\u7ecf\u8fc7\u62e5\u585e\u7684\u4ea4\u6362\u70b9\u3002\u5f53\u5de5\u7a0b\u5e08\u8bf4\u300c\u65e5\u672c\u90a3\u53f0\u673a\u5668\u5f88\u6162\u300d\u65f6\uff0c\u7b2c\u4e00\u4ef6\u8981\u786e\u8ba4\u7684\u4e8b\u60c5\uff0c\u662f\u95ee\u9898\u662f\u5426\u65e9\u5728 L3\/L4 \u5c31\u5df2\u7ecf\u51fa\u73b0\uff0c\u800c\u6839\u672c\u8f6e\u4e0d\u5230\u4f60\u7684\u4ee3\u7801\u6267\u884c\u3002\n  <\/p>\n<ul>\n<li>\n      <strong>\u6d4b\u91cf\u57fa\u7ebf RTT\uff1a<\/strong>\u4ece\u7528\u6237\u6240\u5728\u5730\u533a\u53ca\u5176\u4ed6\u533a\u57df\u8fd0\u884c <code>ping<\/code> \u548c <code>mtr<\/code>\uff0c\u8bb0\u5f55 p50\/p95 \u5ef6\u8fdf\u548c\u4e22\u5305\u7387\u3002\u5982\u679c p95 \u5728\u6bcf\u5929\u665a\u4e0a\u6216\u4e1a\u52a1\u9ad8\u5cf0\u671f\u7a81\u7136\u98d9\u5347\uff0c\u5f88\u6709\u53ef\u80fd\u662f\u8fd0\u8425\u5546\u94fe\u8def\u62e5\u585e\u3002\n    <\/li>\n<li>\n      <strong>\u8ffd\u8e2a\u8def\u5f84\uff1a<\/strong>\u4ece\u591a\u4e2a\u7f51\u7edc\uff08\u5982\u4e2d\u56fd\u7535\u4fe1\u3001\u672c\u5730 ISP\u3001\u7f8e\u56fd\u4e91\u5382\u5546\u7b49\uff09\u5bf9\u65e5\u672c\u673a\u67dc\u53d1\u8d77 <code>traceroute<\/code> \u6216\u4e09\u5c42\u8def\u5f84\u8ffd\u8e2a\uff0c\u89c2\u5bdf RTT \u7a81\u7136\u98d9\u5347\u6216\u51fa\u73b0\u4e22\u5305\u7684\u8282\u70b9\u3002\n    <\/li>\n<li>\n      <strong>\u5173\u6ce8\u5e26\u5bbd\u6253\u6ee1\uff1a<\/strong>\u5373\u4fbf\u6807\u79f0\u662f 1 Gbit \u94fe\u8def\uff0c\u5435\u95f9\u7684\u300c\u90bb\u5c45\u300d\u3001DDoS \u653b\u51fb\u6216\u6279\u5904\u7406\u4f5c\u4e1a\uff0c\u90fd\u53ef\u80fd\u628a\u51fa\u53e3\u5e26\u5bbd\u6253\u6ee1\u3002\u76d1\u63a7\u6bcf\u4e2a\u7f51\u5361\u63a5\u53e3\u7684\u541e\u5410\uff0c\u800c\u4e0d\u662f\u53ea\u770b CPU\uff0c\u624d\u80fd\u77e5\u9053 NIC \u662f\u5426\u6210\u4e86\u771f\u6b63\u7684\u74f6\u9888\u3002\n    <\/li>\n<\/ul>\n<p>\n    \u5982\u679c\u56fe\u8868\u663e\u793a RTT \u5076\u5c14\u66b4\u6da8\uff0c\u800c\u670d\u52a1\u5668\u672c\u8eab\u5341\u5206\u5b89\u9759\uff0c\u90a3\u4e48\u52a0 CPU \u6216\u52a0\u5185\u5b58\u90fd\u6ca1\u7528\u3002\u6b63\u786e\u7684\u65b9\u5411\u662f\u4f18\u5316\u8def\u7531\u3001\u9009\u62e9\u66f4\u597d\u7684\u8fd0\u8425\u5546\u51fa\u53e3\uff0c\u6216\u8005\u628a\u9759\u6001\u6d41\u91cf\u901a\u8fc7\u66f4\u63a5\u8fd1\u7528\u6237\u7684 CDN \u8282\u70b9\u8fdb\u884c\u5206\u62c5\uff0c\u51cf\u5c11\u8de8\u5883\u957f\u9014\u8bbf\u95ee\u65e5\u672c\u7684\u9ad8\u6210\u672c\u8df3\u6570\u3002\n  <\/p>\n<h2><strong>\u78c1\u76d8 I\/O\uff1aCPU \u5f88\u95f2\uff0c\u5b58\u50a8\u5374\u5feb\u6491\u4e0d\u4f4f\u4e86<\/strong><\/h2>\n<p>\n    \u5728\u89c4\u683c\u504f\u4f4e\u7684\u65e5\u672c\u8282\u70b9\u4e0a\uff0c\u4e00\u4e2a\u5f88\u5e38\u89c1\u7684\u6a21\u5f0f\u662f\uff1a\u7f13\u6162\u7684 SATA HDD \u6216\u5171\u4eab NAS \u628a\u6240\u6709\u8bf7\u6c42\u90fd\u62d6\u6162\uff0c\u800c CPU \u4f7f\u7528\u7387\u5047\u88c5\u4e00\u5207\u6b63\u5e38\u3002\u5982\u679c\u4f60\u7684\u6808\u9ad8\u5ea6\u4f9d\u8d56 I\/O\uff08\u6570\u636e\u5e93\u3001\u65e5\u5fd7\u3001\u5927\u6570\u636e\u5206\u6790\u4f5c\u4e1a\uff09\uff0c\u78c1\u76d8\u5ef6\u8fdf\u4f1a\u6084\u65e0\u58f0\u606f\u5730\u62c9\u9ad8\u5c3e\u90e8\u5ef6\u8fdf\uff0c\u800c\u6838\u5fc3\u5374\u5728\u300c\u5348\u7761\u300d\u3002\n  <\/p>\n<ul>\n<li>\n      <strong>\u67e5\u770b I\/O wait\uff1a<\/strong>\u4f7f\u7528 <code>iostat<\/code>\u3001<code>vmstat<\/code> \u6216 <code>dstat<\/code> \u68c0\u67e5 I\/O \u7b49\u5f85\u65f6\u95f4\uff08<code>wa<\/code>\uff09\u3002\u5982\u679c <code>wa<\/code> \u5f88\u9ad8\uff0c\u540c\u65f6\u78c1\u76d8\u7684\u961f\u5217\u6df1\u5ea6\u548c 99 \u5206\u4f4d\u8bfb\u5199\u5ef6\u8fdf\u98d9\u5347\u5230\u51e0\u5341\u751a\u81f3\u51e0\u767e\u6beb\u79d2\uff0c\u90a3\u5c31\u8bf4\u660e\u4f60\u6b63\u9762\u4e34 I\/O \u95ee\u9898\u3002\n    <\/li>\n<li>\n      <strong>\u51b7\u70ed\u6570\u636e\u5206\u79bb\uff1a<\/strong>\u628a\u5199\u5165\u9891\u7e41\u7684\u65e5\u5fd7\u6216\u5206\u6790\u843d\u76d8\u6570\u636e\u653e\u5728\u4e0e\u5ef6\u8fdf\u654f\u611f\u6570\u636e\u4e0d\u540c\u7684\u5377\u4e0a\u3002\u5bf9\u5171\u4eab\u65e5\u672c\u4e3b\u673a\u6765\u8bf4\u5c24\u4e3a\u91cd\u8981\uff0c\u56e0\u4e3a\u300c\u90bb\u5c45\u300d\u53ef\u80fd\u5728\u540c\u4e00\u5377\u4e0a\u75af\u72c2\u5237\u5199\u3002\n    <\/li>\n<li>\n      <strong>\u4e3a\u5173\u952e\u8def\u5f84\u6362\u7528 SSD \u6216 NVMe\uff1a<\/strong>\u5bf9 OLTP \u6570\u636e\u5e93\u6216\u9ad8 QPS \u7684 API \u800c\u8a00\uff0cHDD \u51e0\u4e4e\u7b49\u540c\u4e8e\u7ed9\u81ea\u5df1\u505a\u300c\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u300d\u3002\u5728\u65e5\u672c\u673a\u623f\u91cc\u4e3a\u5173\u952e\u4e1a\u52a1\u4f7f\u7528 NVMe \u5b58\u50a8\uff0c\u5f80\u5f80\u6bd4\u591a\u52a0\u4e24\u9897 vCPU \u8fd8\u66f4\u6709\u4ef7\u503c\u3002\n    <\/li>\n<\/ul>\n<p>\n    \u4e00\u4e2a\u5178\u578b\u75c7\u72b6\u662f\uff1aLinux \u4e0b\u7684 Web \u670d\u52a1\u5668\u6216\u5e94\u7528\u7ebf\u7a0b\u5927\u91cf\u5904\u4e8e \u201cD\u201d\uff08\u4e0d\u53ef\u4e2d\u65ad\u7761\u7720\uff09\u72b6\u6001\uff0c\u88ab\u78c1\u76d8 I\/O \u5361\u4f4f\uff0c\u800c CPU \u56fe\u8868\u5374\u5f88\u4f4e\u3002\u5728\u8fd9\u79cd\u573a\u666f\u4e0b\uff0c\u91cd\u6784\u67e5\u8be2\u6216\u6a2a\u5411\u6269\u5bb9\u90fd\u65e0\u6d4e\u4e8e\u4e8b\uff0c\u9664\u975e\u4f60\u5148\u89e3\u51b3\u5e95\u5c42\u5b58\u50a8\u5ef6\u8fdf\u6216\u6570\u636e\u76d8\u7684\u89c4\u5212\u95ee\u9898\u3002\n  <\/p>\n<h2><strong>\u5185\u5b58\u3001Swap \u4e0e\u9690\u5f62\u6296\u52a8<\/strong><\/h2>\n<p>\n    \u5982\u679c\u4f60\u53ea\u770b\u5df2\u5206\u914d\u5185\u5b58\u5927\u5c0f\uff0c\u5185\u5b58\u56fe\u8868\u5f88\u5bb9\u6613\u663e\u5f97\u4e00\u7247\u300c\u7eff\u6cb9\u6cb9\u300d\u3002\u66f4\u5173\u952e\u7684\u4fe1\u53f7\uff0c\u662f\u5185\u6838\u5728\u591a\u5927\u7a0b\u5ea6\u4e0a\u4f9d\u8d56 swap\uff0c\u6216\u8005\u5728\u538b\u529b\u4e0b\u9891\u7e41\u56de\u6536\u9875\u3002\u5728\u5185\u5b58\u6709\u9650\u7684\u65e5\u672c\u8282\u70b9\u4e0a\uff0c\u8fd9\u4e9b swap \u884c\u4e3a\u5e38\u5e38\u4e0d\u662f\u901a\u8fc7\u9ad8 CPU \u5448\u73b0\uff0c\u800c\u662f\u4ee5\u300c\u5947\u602a\u7684\u987f\u632b\u300d\u548c\u7a81\u53d1\u6027\u5ef6\u8fdf\u7684\u65b9\u5f0f\u51fa\u73b0\u3002\n  <\/p>\n<ol>\n<li>\n      \u4f7f\u7528 <code>free -m<\/code>\u3001<code>top<\/code> \u6216 <code>htop<\/code> \u67e5\u770b swap \u4f7f\u7528\u60c5\u51b5\u548c\u9875\u6d3b\u52a8\uff0c\u800c\u4e0d\u53ea\u662f\u603b\u5185\u5b58\u5360\u7528\u3002\u5982\u679c swap \u4e0d\u4e3a\u96f6\u8fd8\u5728\u4e0d\u65ad\u53d8\u52a8\uff0c\u5c31\u8bf4\u660e\u4f60\u6b63\u5728\u7528\u78c1\u76d8\u5ef6\u8fdf\u63a9\u76d6\u5185\u5b58\u538b\u529b\u3002\n    <\/li>\n<li>\n      \u68c0\u67e5\u6838\u5fc3\u670d\u52a1\u7684\u5de5\u4f5c\u96c6\uff1a\u6570\u636e\u5e93\u3001\u7f13\u5b58\u3001\u5e94\u7528\u8fdb\u7a0b\u7b49\u3002\u5982\u679c\u90e8\u7f72\u5728\u65e5\u672c\u7684\u4e3b\u6570\u636e\u5e93\u5b9e\u4f8b\u7f13\u51b2\u6c60\u8fc7\u5c0f\uff0c\u5bb9\u4e0d\u4e0b\u6d3b\u8dc3\u6570\u636e\u96c6\uff0c\u90a3\u4e48\u6bcf\u4e00\u6b21\u7f13\u5b58\u672a\u547d\u4e2d\u90fd\u8981\u89e6\u53d1\u78c1\u76d8\u8bbf\u95ee\u3002\n    <\/li>\n<li>\n      \u63a7\u5236\u5931\u63a7\u7684\u5185\u5b58\u5206\u914d\uff1a\u5f88\u591a\u8bed\u8a00\u8fd0\u884c\u65f6\uff08JVM\u3001Node.js\u3001Python\uff09\u4f1a\u4ea7\u751f\u5185\u5b58\u788e\u7247\u5e76\u503e\u5411\u4e8e\u300c\u56e4\u79ef\u300d\u5185\u5b58\u3002\u8981\u6839\u636e\u771f\u5b9e\u6d41\u91cf\u6a21\u5f0f\u6765\u8c03\u4f18\u5806\u5927\u5c0f\u3001GC \u7b56\u7565\u548c worker \u6570\u91cf\uff0c\u800c\u4e0d\u662f\u4f9d\u8d56\u9ed8\u8ba4\u914d\u7f6e\u3002\n    <\/li>\n<\/ol>\n<p>\n    \u5728\u5185\u5b58\u538b\u529b\u4e0b\uff0cCPU \u4f7f\u7528\u7387\u53ef\u80fd\u4f9d\u7136\u4e0d\u9ad8\uff0c\u56e0\u4e3a\u7ebf\u7a0b\u90fd\u5728\u7b49\u5f85\u88ab\u6362\u51fa\u5230\u78c1\u76d8\u7684\u9875\u9762\u6216\u8005\u88ab\u7cfb\u7edf\u8c03\u7528\u963b\u585e\u3002\u4e3a\u65e5\u672c\u673a\u67dc\u8282\u70b9\u589e\u52a0\u5185\u5b58\uff0c\u6216\u8005\u538b\u7f29\u5355\u8fdb\u7a0b\u5185\u5b58\u5360\u7528\uff0c\u5f80\u5f80\u80fd\u7acb\u523b\u5e73\u6ed1 p95 \u5ef6\u8fdf\uff0c\u800c\u4e0d\u7528\u52a8 CPU \u4e00\u6839\u6c57\u6bdb\u3002\n  <\/p>\n<h2><strong>\u5e94\u7528\u5c42\u74f6\u9888\uff1a\u540c\u6b65\u8c03\u7528\u4e0e\u5355\u7ebf\u7a0b\u8def\u5f84<\/strong><\/h2>\n<p>\n    \u5f88\u591a\u300c\u65e5\u672c\u8282\u70b9\u5f88\u6162\u300d\u7684\u5de5\u5355\uff0c\u8ffd\u5230\u6700\u540e\u65e2\u4e0d\u662f\u65e5\u672c\u7684\u9505\uff0c\u4e5f\u4e0d\u662f\u786c\u4ef6\u7684\u9505\uff0c\u800c\u662f\u5e94\u7528\u8bbe\u8ba1\u5728\u8bf7\u6c42\u8def\u5f84\u4e0a\u4e32\u884c\u4e86\u592a\u591a\u5de5\u4f5c\u3002\u5728 PHP\u3001Python\u3001Ruby \u4ee5\u53ca\u67d0\u4e9b Node.js \u90e8\u7f72\u6a21\u5f0f\u4e0b\uff0c\u5bf9\u5916\u90e8\u7cfb\u7edf\u7684\u540c\u6b65\u8c03\u7528\u4f1a\u963b\u585e worker\uff0c\u5373\u4f7f\u673a\u5668\u4e0a\u8fd8\u6709\u4e00\u5806\u7a7a\u95f2\u6838\u5fc3\u3002\n  <\/p>\n<ul>\n<li>\n      <strong>\u4e32\u884c\u5916\u90e8\u8c03\u7528\uff1a<\/strong>\u4e00\u4e2a API \u63a5\u53e3\u53ef\u80fd\u4f9d\u6b21\u8c03\u7528\u4e09\u4e2a\u5fae\u670d\u52a1\uff0c\u7136\u540e\u518d\u8bbf\u95ee\u652f\u4ed8\u7f51\u5173\uff0c\u628a\u5ef6\u8fdf\u6210\u500d\u53e0\u52a0\u3002\u5bf9\u64cd\u4f5c\u7cfb\u7edf\u6765\u8bf4\uff0c\u8fd9\u53ea\u662f\u4e00\u4e2a\u5927\u90e8\u5206\u65f6\u95f4\u90fd\u5728\u7b49\u5f85\u7f51\u7edc I\/O \u7684\u8fdb\u7a0b\u3002\n    <\/li>\n<li>\n      <strong>\u6bcf\u6b21\u8bf7\u6c42\u90fd\u505a\u91cd\u578b\u8ba1\u7b97\uff1a<\/strong>\u5982\u679c\u6bcf\u4e2a\u8bf7\u6c42\u90fd\u8981\u540c\u6b65\u751f\u6210 PDF\uff0c\u6216\u8005\u8dd1\u590d\u6742\u62a5\u8868\u67e5\u8be2\uff0c\u5f88\u5feb\u5c31\u4f1a\u628a\u54cd\u5e94\u65f6\u95f4\u9884\u7b97\u7528\u5149\uff0c\u8fd8\u6ca1\u7b49 CPU \u771f\u6b63\u88ab\u5403\u6ee1\u3002\n    <\/li>\n<li>\n      <strong>\u5168\u5c40\u9501\u6216\u4e92\u65a5\u91cf\uff1a<\/strong>\u8bbe\u8ba1\u4e0d\u5f53\u7684\u5171\u4eab\u72b6\u6001\uff08\u6587\u4ef6\u9501\u3001\u7f13\u5b58\u9501\u3001\u6570\u636e\u5e93\u884c\u9501\u7b49\uff09\u4f1a\u628a\u672c\u8be5\u5e76\u884c\u7684\u6d41\u91cf\u4e32\u884c\u5316\uff0c\u518d\u6b21\u5bfc\u81f4 CPU \u95f2\u7740\u3001\u7ebf\u7a0b\u5728\u7b49\u3002\n    <\/li>\n<\/ul>\n<p>\n    \u89e3\u51b3\u8fd9\u7c7b\u95ee\u9898\uff0c\u9760\u7684\u662f\u67b6\u6784\u8c03\u6574\u800c\u4e0d\u662f\u300c\u52a0\u673a\u5668\u300d\u3002\u628a\u91cd\u6d3b\u642c\u5230\u540e\u53f0 worker\uff0c\u901a\u8fc7\u961f\u5217\u5f02\u6b65\u5904\u7406\uff0c\u5728\u5408\u9002\u7684\u5730\u65b9\u91c7\u7528\u5f02\u6b65 I\/O\uff0c\u5c3d\u91cf\u907f\u514d\u540c\u6b65\u4e32\u8054\u591a\u4e2a\u8fdc\u7a0b\u8c03\u7528\u3002\u5728\u65e5\u672c\u673a\u623f\u4e3a\u591a\u6d32\u7528\u6237\u670d\u52a1\u65f6\uff0c\u6bcf\u4e00\u6b21\u8de8\u7f51\u7edc\u8c03\u7528\u90fd\u5df2\u7ecf\u5f88\u6602\u8d35\uff1b\u5982\u679c\u4f60\u5728\u5e94\u7528\u5c42\u628a\u8fd9\u4e9b\u300c\u8d35\u64cd\u4f5c\u300d\u4e32\u6210\u4e00\u6761\u957f\u94fe\uff0c\u518d\u5feb\u7684 CPU \u4e5f\u4f1a\u88ab\u62d6\u6210\u6162\u4f53\u9a8c\u3002\n  <\/p>\n<h2><strong>\u6570\u636e\u5e93\u4e0e\u7f13\u5b58\uff1a\u8001\u719f\u4eba\u5acc\u7591\u72af<\/strong><\/h2>\n<p>\n    \u5982\u679c\u65e5\u672c\u673a\u623f\u91cc\u7684 Web \u5c42\u770b\u4e0a\u53bb\u90fd\u5f88\u5e72\u51c0\uff0c\u8bf7\u6c42\u5374\u4f9d\u7136\u5f88\u6162\uff0c\u90a3\u4e48\u4e0b\u4e00\u4e2a\u6700\u53ef\u80fd\u7684\u95ee\u9898\u6e90\u5934\u5c31\u662f\u6570\u636e\u5c42\u3002\u6162\u67e5\u8be2\u3001\u7f3a\u5931\u7d22\u5f15\u4ee5\u53ca\u5570\u55e6\u7684 ORM \u8bbf\u95ee\u6a21\u5f0f\uff0c\u90fd\u4f1a\u5236\u9020\u51fa\u5927\u91cf\u5ef6\u8fdf\uff0c\u800c\u8fd9\u901a\u5e38\u4e0d\u4f1a\u5728\u5e94\u7528\u8282\u70b9\u7684 CPU \u4e0a\u76f4\u63a5\u8868\u73b0\u51fa\u6765\u3002\n  <\/p>\n<ol>\n<li>\n      <strong>\u5f00\u542f\u5e76\u9605\u8bfb\u6162\u67e5\u8be2\u65e5\u5fd7\uff1a<\/strong>MySQL\u3001PostgreSQL \u7b49\u6570\u636e\u5e93\u90fd\u80fd\u8bb0\u5f55\u8d85\u8fc7\u6307\u5b9a\u9608\u503c\u7684\u6162\u67e5\u8be2\u3002\u6309\u603b\u8017\u65f6\u548c\u51fa\u73b0\u6b21\u6570\u6392\u5e8f\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u6700\u957f\u8017\u65f6\uff0c\u5c31\u80fd\u66f4\u51c6\u786e\u5730\u53d1\u73b0\u70ed\u70b9\u95ee\u9898\u3002\n    <\/li>\n<li>\n      <strong>\u4e3a\u8bfb\u591a\u5199\u5c11\u7684\u573a\u666f\u8bbe\u8ba1\u7d22\u5f15\uff1a<\/strong>\u5f53\u67d0\u4e2a\u70ed\u95e8\u63a5\u53e3\u6309\u591a\u5217\u8fc7\u6ee4\uff0c\u5374\u53ea\u80fd\u9760\u5168\u8868\u626b\u63cf\u65f6\uff0c\u89c4\u6a21\u4e00\u4e0a\u53bb\u4ee3\u4ef7\u5c31\u975e\u5e38\u53ef\u89c2\u3002\u4e3a\u65e5\u672c\u6570\u636e\u5e93\u8282\u70b9\u4e0a\u7684\u8fd9\u4e9b\u8bbf\u95ee\u6a21\u5f0f\u8bbe\u8ba1\u5408\u9002\u7684\u7ec4\u5408\u7d22\u5f15\uff0c\u5f80\u5f80\u6bd4\u591a\u52a0\u51e0\u9897 CPU \u66f4\u80fd\u6709\u6548\u964d\u4f4e\u5c3e\u90e8\u5ef6\u8fdf\u3002\n    <\/li>\n<li>\n      <strong>\u91cd\u89c6\u6570\u636e\u5c40\u90e8\u6027\uff1a<\/strong>\u5c3d\u91cf\u51cf\u5c11\u65e5\u672c\u8282\u70b9\u5bf9\u5f02\u5730\u6570\u636e\u5e93\u7684\u8de8\u533a\u57df\u8c03\u7528\u3002\u5728\u67e5\u8be2\u8def\u5f84\u91cc\uff0c\u4e00\u6b21\u8de8\u592a\u5e73\u6d0b\u5f80\u8fd4\u7684\u7f51\u7edc\u5ef6\u8fdf\uff0c\u8fdc\u8fdc\u5927\u8fc7\u672c\u5730 CPU \u548c\u5185\u5b58\u5c42\u9762\u7684\u4f18\u5316\u7a7a\u95f4\u3002\n    <\/li>\n<\/ol>\n<p>\n    \u9664\u4e86\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff0cRedis\u3001Memcached \u7b49\u5206\u5e03\u5f0f\u7f13\u5b58\u4e5f\u503c\u5f97\u4ed4\u7ec6\u6392\u67e5\u3002\u6765\u81ea\u8fdc\u7a0b\u7f13\u5b58\u96c6\u7fa4\u7684\u8d85\u65f6\uff0c\u4ece\u5ba2\u6237\u7aef\u89c6\u89d2\u770b\u8d77\u6765\u548c CPU \u8fc7\u8f7d\u6ca1\u4ec0\u4e48\u4e24\u6837\u3002\u5c3d\u91cf\u628a\u7f13\u5b58\u90e8\u7f72\u5728\u9760\u8fd1\u65e5\u672c\u5e94\u7528\u8282\u70b9\u7684\u4f4d\u7f6e\uff0c\u76d1\u63a7\u8fde\u63a5\u6c60\u9971\u548c\u60c5\u51b5\uff0c\u8bbe\u7f6e\u5408\u7406\u4e25\u683c\u7684\u8d85\u65f6\u65f6\u95f4\uff0c\u8ba9\u7f13\u5b58\u6545\u969c\u53ef\u4ee5\u4f18\u96c5\u964d\u7ea7\uff0c\u800c\u4e0d\u662f\u628a\u6574\u4e2a\u8bf7\u6c42\u94fe\u8def\u4e00\u540c\u62d6\u6b7b\u3002\n  <\/p>\n<h2><strong>Web \u670d\u52a1\u5668\u8c03\u4f18\u3001\u9650\u5236\u4e0e\u961f\u5217<\/strong><\/h2>\n<p>\n    \u524d\u7aef Web \u670d\u52a1\u5668\u6216\u53cd\u5411\u4ee3\u7406\uff0c\u662f\u6240\u6709\u590d\u6742\u7cfb\u7edf\u524d\u9762\u7684\u300c\u95e8\u536b\u300d\u3002worker \u6570\u3001\u8fde\u63a5\u4e0a\u9650\u4e0e\u7f13\u51b2\u533a\u5927\u5c0f\u914d\u7f6e\u4e0d\u5f53\uff0c\u5f80\u5f80\u4f1a\u8868\u73b0\u4e3a\u8fde\u63a5\u53d8\u6162\u6216\u88ab\u4e22\u5f03\uff0c\u800c OS \u5c42\u9762\u7684 CPU \u6307\u6807\u5374\u4f9d\u7136\u5e73\u9759\u3002\n  <\/p>\n<ul>\n<li>\n      <strong>worker \u4e0e\u6838\u5fc3\u6570\u7684\u5173\u7cfb\uff1a<\/strong>\u5728\u65e5\u672c\u8282\u70b9\u4e0a\u7684 Nginx \u7b49\u4ee3\u7406\u4e2d\uff0c\u5e94\u5f53\u8ba9 worker \u8fdb\u7a0b\u6570\u4e0e\u7269\u7406\u6216\u865a\u62df\u6838\u5fc3\u76f8\u5339\u914d\uff0c\u800c\u4e0d\u662f\u6beb\u65e0\u7406\u7531\u5730\u5f00\u51fa\u51e0\u5341\u4e2a worker\u3002worker \u592a\u591a\u53ea\u4f1a\u589e\u52a0\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u5e76\u4e0d\u4e00\u5b9a\u6709\u597d\u5904\u3002\n    <\/li>\n<li>\n      <strong>\u8fde\u63a5\u4e0a\u9650\uff1a<\/strong>\u8c03\u4f18\u5355\u4e2a worker \u7684\u6700\u5927\u8fde\u63a5\u6570\u3001backlog \u961f\u5217\u957f\u5ea6\u7b49\u53c2\u6570\uff0c\u8ba9\u77ed\u65f6\u95f4\u6d41\u91cf\u7a81\u53d1\u53ef\u4ee5\u88ab\u5e73\u6ed1\u5438\u6536\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u62d2\u7edd\u3002\u8981\u76d1\u63a7\u6709\u591a\u5c11\u8fde\u63a5\u88ab\u6392\u961f\u3002\n    <\/li>\n<li>\n      <strong>Keep-Alive \u4e0e\u8d85\u65f6\u65f6\u95f4\uff1a<\/strong>\u5408\u7406\u7684 Keep-Alive \u53ef\u4ee5\u51cf\u5c11\u8fdc\u8ddd\u79bb\u7528\u6237\uff08\u8ddd\u79bb\u65e5\u672c\u8f83\u8fdc\uff09\u53cd\u590d\u63e1\u624b\u7684\u5f00\u9500\uff0c\u4f46\u8fc7\u957f\u7684\u8d85\u65f6\u65f6\u95f4\u4f1a\u5728\u7a7a\u95f2\u8fde\u63a5\u4e0a\u957f\u671f\u5360\u7528\u8d44\u6e90\u3002\u9700\u8981\u6839\u636e\u771f\u5b9e\u6d41\u91cf\u5f62\u6001\u505a\u5e73\u8861\u3002\n    <\/li>\n<\/ul>\n<p>\n    \u5f53\u4ee3\u7406\u7684\u914d\u7f6e\u4e0e\u65e5\u672c\u8282\u70b9\u5b9e\u9645\u627f\u53d7\u7684\u6d41\u91cf\u6a21\u5f0f\u4e0d\u5339\u914d\u65f6\uff0c\u8bf7\u6c42\u53ef\u80fd\u65e9\u5728\u786c\u4ef6\u771f\u6b63\u5403\u6ee1\u4e4b\u524d\uff0c\u5c31\u56e0\u4e3a\u6392\u961f\u6216\u89e6\u8fbe\u5404\u79cd\u9650\u5236\u800c\u88ab\u62d6\u6162\u3002\u6b64\u65f6\uff0c\u76d1\u63a7\u8bf8\u5982 accept \u5931\u8d25\u6b21\u6570\u3001\u961f\u5217\u6df1\u5ea6\u3001\u5404 worker \u5229\u7528\u7387\u7b49\u6307\u6807\uff0c\u5f80\u5f80\u6bd4\u53ea\u76ef\u7740\u603b\u4f53 CPU \u767e\u5206\u6bd4\u66f4\u80fd\u53cd\u6620\u771f\u76f8\u3002\n  <\/p>\n<h2><strong>\u7f13\u5b58\u4e0e CDN\uff1a\u522b\u518d\u60e9\u7f5a\u4f60\u7684\u6e90\u7ad9<\/strong><\/h2>\n<p>\n    \u8ba9\u4f4d\u4e8e\u4e1c\u4eac\u673a\u67dc\u91cc\u7684\u6e90\u7ad9\u8282\u70b9\uff0c\u5411\u5168\u4e16\u754c\u7528\u6237\u76f4\u63a5\u63d0\u4f9b\u6240\u6709\u9759\u6001\u8d44\u6e90\u548c\u9ad8\u5ea6\u53ef\u7f13\u5b58\u7684 API \u54cd\u5e94\uff0c\u672c\u8d28\u4e0a\u5c31\u662f\u5728\u81ea\u6211\u5236\u9020\u9ad8\u5ef6\u8fdf\u3002\u5373\u4f7f\u672c\u5730 CPU \u4ece\u672a\u51b2\u9ad8\uff0c\u4f60\u4e5f\u5728\u4e3a\u672c\u53ef\u7f13\u5b58\u7684\u5de5\u4f5c\u767d\u767d\u6d88\u8017\u5e26\u5bbd\u3001\u7cfb\u7edf\u8c03\u7528\u548c\u8fde\u63a5\u8ddf\u8e2a\u80fd\u529b\u3002\n  <\/p>\n<ol>\n<li>\n      \u628a\u9759\u6001\u5185\u5bb9\uff08\u56fe\u7247\u3001CSS\u3001JS\u3001\u4e0b\u8f7d\u6587\u4ef6\u7b49\uff09\u4e0b\u653e\u7ed9\u8ddd\u79bb\u4e3b\u8981\u7528\u6237\u7fa4\u66f4\u8fd1\u7684 CDN \u8fb9\u7f18\u8282\u70b9\u3002\u5149\u662f\u8fd9\u4e00\u6b65\uff0c\u5c31\u80fd\u663e\u8457\u51cf\u5c11\u65e5\u672c\u6e90\u7ad9\u8def\u5f84\u4e0a\u7684\u8de8\u5883 RTT\u3002\n    <\/li>\n<li>\n      \u6b63\u786e\u8bbe\u7f6e\u7f13\u5b58\u5934\u548c ETag\uff0c\u8ba9\u4e2d\u95f4\u7f13\u5b58\u80fd\u53ef\u9760\u590d\u7528\u54cd\u5e94\u3002\u5982\u679c\u54cd\u5e94\u5934\u914d\u5f97\u4e0d\u5bf9\uff0c\u5373\u4fbf\u4f60\u90e8\u7f72\u4e86 CDN\uff0c\u6bcf\u4e2a\u8bf7\u6c42\u4ecd\u7136\u4f1a\u56de\u6e90\u3002\n    <\/li>\n<li>\n      \u4e3a\u6602\u8d35\u67e5\u8be2\u4f7f\u7528\u670d\u52a1\u7aef\u7f13\u5b58\uff1a\u4f7f\u7528 Redis \u7b49\u7f13\u5b58\u7528\u6237\u8d44\u6599\u3001\u5546\u54c1\u5217\u8868\u3001\u914d\u7f6e\u6570\u636e\u7b49\u8bfb\u591a\u5199\u5c11\u7684\u5185\u5bb9\uff0c\u51cf\u8f7b\u65e5\u672c\u673a\u623f\u6e90\u7ad9\u6570\u636e\u5e93\u7684 I\/O \u538b\u529b\u3002\n    <\/li>\n<\/ol>\n<p>\n    \u7f13\u5b58\u4e0d\u4ec5\u662f\u4e3a\u4e86\u8ba9\u56fe\u8868\u66f4\u597d\u770b\uff0c\u5b83\u4f1a\u91cd\u5851\u4f60\u7684\u7cfb\u7edf\u62d3\u6251\u3002\u505a\u5f97\u597d\u7684\u60c5\u51b5\u4e0b\uff0c\u4e00\u4e2a\u4e3b\u8981\u5904\u7406\u7f13\u5b58\u672a\u547d\u4e2d\u7684\u7cbe\u7b80\u65e5\u672c\u6e90\u7ad9\u8282\u70b9\uff0c\u5728\u7528\u6237\u4fa7\u7684\u4f53\u9a8c\u53ef\u4ee5\u5feb\u51e0\u4e2a\u6570\u91cf\u7ea7\uff0c\u540c\u65f6\u6d88\u8017\u7684 CPU \u5468\u671f\u5374\u6bd4\u4e00\u4e2a\u7f13\u5b58\u505a\u5f97\u5f88\u5dee\u7684\u300c\u5de8\u77f3\u5e94\u7528\u300d\u8981\u5c11\u5f97\u591a\u3002\n  <\/p>\n<h2><strong>\u5185\u6838\u4e0e\u7cfb\u7edf\u53c2\u6570\uff1a\u9ed8\u8ba4\u503c\u8fdc\u8fdc\u4e0d\u591f<\/strong><\/h2>\n<p>\n    \u53d1\u884c\u7248\u81ea\u5e26\u7684\u7cfb\u7edf\u955c\u50cf\u901a\u5e38\u4f7f\u7528\u975e\u5e38\u4fdd\u5b88\u7684\u9ed8\u8ba4\u8bbe\u7f6e\uff0c\u5f88\u5c11\u9002\u914d\u771f\u5b9e\u7684\u751f\u4ea7\u8d1f\u8f7d\uff0c\u5c24\u5176\u5728\u9ad8\u5e76\u53d1\u670d\u52a1\u5668\u79df\u7528\u573a\u666f\u91cc\u66f4\u662f\u5982\u6b64\u3002\u4e00\u53f0\u670d\u52a1\u5668\u4ece CPU \u6307\u6807\u6765\u770b\u4f3c\u4e4e\u300c\u4e0d\u5fd9\u300d\uff0c\u5374\u53ef\u80fd\u65e9\u5df2\u88ab\u8fde\u63a5\u6570\u91cf\u3001\u6587\u4ef6\u63cf\u8ff0\u7b26\u6216\u4fdd\u5b88\u7684 TCP \u53c2\u6570\u7ed9\u675f\u7f1a\u4f4f\u4e86\u3002\n  <\/p>\n<ul>\n<li>\n      <strong>\u6587\u4ef6\u63cf\u8ff0\u7b26\uff1a<\/strong>\u5982\u679c\u8fdb\u7a0b\u89e6\u8fbe\u4e86\u6253\u5f00\u6587\u4ef6\u6216 socket \u7684\u4e0a\u9650\uff0c\u5373\u4fbf\u8fd8\u6709\u7a7a\u95f2\u6838\u5fc3\uff0c\u65b0\u8fde\u63a5\u4e5f\u53ea\u80fd\u5931\u8d25\u6216\u6392\u961f\u3002\u9700\u6839\u636e\u5e76\u53d1\u9700\u6c42\u63d0\u9ad8\u7cfb\u7edf\u7ea7\u548c\u8fdb\u7a0b\u7ea7\u7684 fd \u4e0a\u9650\u3002\n    <\/li>\n<li>\n      <strong>TCP backlog \u4e0e\u7f13\u51b2\u533a\uff1a<\/strong>\u6839\u636e\u4e1a\u52a1\u60c5\u51b5\u8c03\u6574 backlog \u961f\u5217\u957f\u5ea6\u53ca\u7f13\u51b2\u533a\u5927\u5c0f\uff0c\u8ba9\u77ed\u65f6\u95f4\u6d41\u91cf\u9ad8\u5cf0\u88ab\u5e73\u6ed1\u5904\u7406\uff0c\u800c\u4e0d\u662f\u5bfc\u81f4 SYN \u88ab\u4e22\u5f03\u6216\u9891\u7e41\u91cd\u4f20\u3002\n    <\/li>\n<li>\n      <strong>TIME_WAIT \u5904\u7406\uff1a<\/strong>\u5927\u91cf\u77ed\u8fde\u63a5\uff08API\u3001\u5fae\u670d\u52a1\u4e4b\u95f4\u8c03\u7528\u7b49\uff09\u4f1a\u7559\u4e0b\u8bb8\u591a\u5904\u4e8e TIME_WAIT \u72b6\u6001\u7684 socket\uff0c\u8017\u5c3d\u4e34\u65f6\u7aef\u53e3\u3002\u66f4\u5408\u7406\u7684\u5185\u6838\u7b56\u7565\u53ef\u4ee5\u907f\u514d\u8fd9\u7c7b\u300c\u770b\u4e0d\u89c1 CPU \u5360\u7528\uff0c\u5374\u5904\u5904\u5361\u987f\u300d\u7684\u8be1\u5f02\u73b0\u8c61\u3002\n    <\/li>\n<\/ul>\n<p>\n    \u8fd9\u4e9b\u8c03\u6574\u90fd\u4e0d\u662f\u300c\u94f6\u5f39\u300d\uff0c\u800c\u4e14\u4ece\u968f\u673a\u535a\u5ba2\u4e0a\u62f7\u8d1d\u4e00\u5806 sysctl \u914d\u7f6e\uff0c\u5f80\u5f80\u6bd4\u4e0d\u8c03\u8fd8\u5371\u9669\u3002\u6b63\u786e\u7684\u8def\u5f84\uff0c\u662f\u5148\u5256\u6790\u771f\u5b9e\u8d1f\u8f7d\uff0c\u518d\u9488\u5bf9\u6027\u5730\u505a\u7cfb\u7edf\u66f4\u6539\uff0c\u5e76\u7528\u4eea\u8868\u76d8\u5b9e\u65f6\u5bf9\u6bd4\u8c03\u6574\u524d\u540e\u5728\u8bf7\u6c42\u5ef6\u8fdf\u3001\u5931\u8d25\u7387\u548c\u961f\u5217\u6df1\u5ea6\u4e0a\u7684\u53d8\u5316\u3002\n  <\/p>\n<h2><strong>\u5982\u4f55\u9009\u62e9\u5408\u9002\u7684\u65e5\u672c\u670d\u52a1\u5668\u79df\u7528\u4e0e\u670d\u52a1\u5668\u6258\u7ba1\u65b9\u6848<\/strong><\/h2>\n<p>\n    \u518d\u806a\u660e\u7684\u8c03\u4f18\uff0c\u4e5f\u65e0\u6cd5\u5b8c\u5168\u5f25\u8865\u786c\u4ef6\u9519\u914d\u6216\u673a\u623f\u9009\u62e9\u5931\u8bef\u7684\u540e\u679c\u3002\u5f53\u4f60\u9009\u62e9\u4e00\u79cd\u65e5\u672c\u670d\u52a1\u5668\u79df\u7528\u6216\u670d\u52a1\u5668\u6258\u7ba1\u65b9\u6848\u65f6\uff0c\u5176\u5b9e\u4e5f\u5728\u540c\u65f6\u9009\u62e9\uff1a\u5b58\u50a8\u7c7b\u578b\u3001\u7f51\u7edc\u4e0a\u6e38\u3001\u4ea4\u53c9\u4e92\u8054\u65b9\u5f0f\u4ee5\u53ca\u8fd0\u7ef4\u4fdd\u969c\u7b49\u7ea7\uff0c\u8fd9\u4e9b\u90fd\u4f1a\u76f4\u63a5\u51b3\u5b9a\u300c\u5feb\u300d\u5728\u4f60\u7684\u4e1a\u52a1\u91cc\u7a76\u7adf\u610f\u5473\u7740\u4ec0\u4e48\u3002\n  <\/p>\n<ul>\n<li>\n      <strong>\u8ba9\u78c1\u76d8\u548c\u8d1f\u8f7d\u76f8\u5339\u914d\uff1a<\/strong>\u5bf9\u5199\u5165\u9891\u7e41\u7684\u6570\u636e\u5e93\u6216\u5b9e\u65f6\u5206\u6790\u4e1a\u52a1\uff0c\u8981\u575a\u6301\u4f7f\u7528 SSD \u6216 NVMe \u4f5c\u4e3a\u540e\u7aef\u5b58\u50a8\u3002\u628a HDD \u7559\u7ed9\u5907\u4efd\u6216\u51b7\u6570\u636e\u5f52\u6863\uff0c\u800c\u4e0d\u662f\u653e\u5728\u7528\u6237\u8bf7\u6c42\u7684\u5173\u952e\u8def\u5f84\u4e0a\u3002\n    <\/li>\n<li>\n      <strong>\u5f04\u6e05\u8fd0\u8425\u5546\u7ec4\u5408\uff1a<\/strong>\u5f04\u6e05\u65e5\u672c\u673a\u623f\u63a5\u5165\u4e86\u54ea\u4e9b\u4e0a\u6e38\u8fd0\u8425\u5546\uff0c\u4ee5\u53ca\u5b83\u4eec\u5982\u4f55\u4e0e\u56fd\u5185\u5916\u4f60\u5173\u5fc3\u7684\u7f51\u7edc\u8fdb\u884c\u4e92\u8054\u3002\u4e0d\u540c\u7684\u8fd0\u8425\u5546\u7ec4\u5408\u4f1a\u5e26\u6765\u622a\u7136\u4e0d\u540c\u7684\u5ef6\u8fdf\u548c\u4e22\u5305\u5206\u5e03\u3002\n    <\/li>\n<li>\n      <strong>\u9884\u7559\u8d44\u6e90\u6269\u5c55\u7a7a\u95f4\uff1a<\/strong>\u89c4\u5212\u65f6\u4e0d\u4ec5\u8981\u7559\u51fa vCPU \u7684\u6269\u5bb9\u4f59\u5730\uff0c\u66f4\u8981\u9884\u7559\u5e26\u5bbd\u548c\u5b58\u50a8\u6027\u80fd\u7684\u589e\u957f\u7a7a\u95f4\u3002\u662f\u5426\u80fd\u65b9\u4fbf\u5730\u5347\u7ea7\u5185\u5b58\u6216\u78c1\u76d8 IOPS\uff0c\u5f80\u5f80\u51b3\u5b9a\u4e86\u4f60\u5728\u6d41\u91cf\u66b4\u6da8\u65f6\uff0c\u662f\u4ece\u5bb9\u5347\u7ea7\u8fd8\u662f\u88ab\u8feb\u300c\u6551\u706b\u300d\u3002\n    <\/li>\n<\/ul>\n<p>\n    \u628a\u57fa\u7840\u8bbe\u65bd\u51b3\u7b56\u5f53\u6210\u4e00\u7b49\u516c\u6c11\u7684\u6027\u80fd\u51b3\u7b56\u6765\u770b\u5f85\u3002\u9009\u62e9\u4e00\u4e2a\u4ea4\u53c9\u4e92\u8054\u80fd\u529b\u5f3a\u3001\u8def\u7531\u5ef6\u8fdf\u4f4e\u7684\u65e5\u672c\u673a\u623f\uff0c\u5e38\u5e38\u6bd4\u5728\u6839\u672c\u504f\u6162\u7684\u57fa\u7840\u8bbe\u65bd\u4e0a\u518d\u5806\u4e00\u5c42\u7f13\u5b58\u3001\u53c8\u52a0\u4e00\u5c42\u5fae\u670d\u52a1\u8981\u66f4\u6709\u6548\u3002\n  <\/p>\n<h2><strong>\u65e5\u672c\u8282\u70b9\u201cCPU \u4f4e\u3001\u5ef6\u8fdf\u9ad8\u201d\u6392\u67e5\u5b9e\u7528\u6e05\u5355<\/strong><\/h2>\n<p>\n    \u4e3a\u4e86\u907f\u514d\u300c\u89c1\u62db\u62c6\u62db\u5f0f\u300d\u7684\u8c03\u53c2\u548c\u7384\u5b66\u64cd\u4f5c\uff0c\u4e0d\u59a8\u4e3a\u65e5\u672c\u8282\u70b9\u7684\u300cCPU \u4e0d\u9ad8\u4f46\u5ef6\u8fdf\u5f88\u9ad8\u300d\u95ee\u9898\u51c6\u5907\u4e00\u4efd\u7b80\u660e\u7684 runbook\u3002\u7edf\u4e00\u7684\u8bca\u65ad\u6d41\u7a0b\u4e0d\u4ec5\u80fd\u52a0\u5feb\u6545\u969c\u5b9a\u4f4d\uff0c\u8fd8\u80fd\u4e3a\u672a\u6765\u7684\u5bb9\u91cf\u89c4\u5212\u6c89\u6dc0\u53ef\u590d\u7528\u7684\u6570\u636e\u3002\n  <\/p>\n<ol>\n<li>\n      <strong>\u5148\u786e\u8ba4\u7f51\u7edc\uff1a<\/strong>\u4ece\u5173\u952e\u7528\u6237\u533a\u57df\u4f7f\u7528 <code>ping<\/code> \u548c <code>mtr<\/code> \u68c0\u67e5 RTT \u548c\u4e22\u5305\u60c5\u51b5\uff0c\u770b\u6027\u80fd\u4e0b\u964d\u662f\u5426\u4e0e\u5916\u90e8\u7f51\u7edc\u72b6\u6001\u4e00\u81f4\u3002\n    <\/li>\n<li>\n      <strong>\u68c0\u67e5\u78c1\u76d8\u4e0e\u5185\u5b58\uff1a<\/strong>\u4f7f\u7528 <code>iostat<\/code>\u3001<code>vmstat<\/code> \u4ee5\u53ca swap \u76f8\u5173\u6307\u6807\uff0c\u786e\u8ba4\u662f\u5426\u5b58\u5728 I\/O wait \u98d9\u9ad8\u6216\u9690\u5f62\u6296\u52a8\uff0c\u4ee5\u53ca\u5b58\u50a8\u5ef6\u8fdf\u662f\u5426\u5728\u300c\u53d8\u6162\u65f6\u6bb5\u300d\u540c\u6b65\u5347\u9ad8\u3002\n    <\/li>\n<li>\n      <strong>\u5256\u6790\u5e94\u7528\uff1a<\/strong>\u91c7\u6837\u5806\u6808\u3001\u67e5\u770b\u7ebf\u7a0b\u72b6\u6001\u3001\u5206\u6790 APM \u8c03\u7528\u94fe\uff0c\u627e\u51fa\u4e32\u884c\u8c03\u7528\u3001\u963b\u585e\u64cd\u4f5c\u6216\u5355\u7ebf\u7a0b\u70ed\u70b9\u7b49\u5e94\u7528\u7ea7\u74f6\u9888\u3002\n    <\/li>\n<li>\n      <strong>\u5206\u6790\u6570\u636e\u5e93\uff1a<\/strong>\u62c9\u53d6\u6162\u67e5\u8be2\u65e5\u5fd7\uff0c\u68c0\u67e5\u7d22\u5f15\u4f7f\u7528\u60c5\u51b5\uff0c\u786e\u8ba4\u65e5\u672c\u8282\u70b9\u662f\u5426\u5b58\u5728\u5bf9\u8de8\u533a\u57df\u6570\u636e\u5e93\u6216\u7f13\u5b58\u7684\u8c03\u7528\u3002\n    <\/li>\n<li>\n      <strong>\u68c0\u67e5 Web \u4e0e\u5185\u6838\u9650\u5236\uff1a<\/strong>\u786e\u8ba4 backlog\u3001\u6587\u4ef6\u63cf\u8ff0\u7b26\u3001\u8fde\u63a5\u6c60\u7b49\u662f\u5426\u5728\u6084\u6084\u9650\u5236\u541e\u5410\u91cf\uff0c\u800c CPU \u6307\u6807\u5374\u7ed9\u4eba\u4e00\u79cd\u300c\u8fd8\u5f88\u95f2\u300d\u7684\u9519\u89c9\u3002\n    <\/li>\n<\/ol>\n<p>\n    \u968f\u7740\u65f6\u95f4\u63a8\u79fb\uff0c\u4f60\u53ef\u4ee5\u628a\u8fd9\u4efd\u6e05\u5355\u7684\u90e8\u5206\u6b65\u9aa4\u81ea\u52a8\u5316\uff1a\u6bd4\u5982\u5bf9 RTT \u6ce2\u52a8\u7684\u5f02\u5e38\u68c0\u6d4b\u3001I\/O wait \u9608\u503c\u62a5\u8b66\u3001swap \u6301\u7eed\u589e\u957f\u9884\u8b66\u3001\u6570\u636e\u5e93\u67e5\u8be2\u8017\u65f6\u5206\u5e03\u5f02\u5e38\u7b49\u3002\u8fd9\u6837\uff0c\u4e00\u6b21\u5355\u70b9\u7684\u300c\u6551\u706b\u6545\u4e8b\u300d\u624d\u80fd\u771f\u6b63\u6c89\u6dc0\u6210\u7a33\u5b9a\u7684\u8fd0\u8425\u5b9e\u8df5\u3002\n  <\/p>\n<h2><strong>\u7ed3\u8bed\uff1a\u8bfb\u61c2\u6574\u4e2a\u7cfb\u7edf\uff0c\u800c\u4e0d\u662f\u53ea\u770b CPU<\/strong><\/h2>\n<p>\n    \u5f53\u4e00\u4e2a\u65e5\u672c\u8282\u70b9\u7684\u7528\u6237\u4f53\u9a8c\u660e\u663e\u53d8\u6162\uff0c\u800c CPU \u56fe\u8868\u5374\u6ce2\u6f9c\u4e0d\u60ca\u65f6\uff0c\u6839\u56e0\u51e0\u4e4e\u603b\u5728\u522b\u5904\uff1a\u8106\u5f31\u7684\u8def\u7531\u3001\u7f13\u6162\u7684\u78c1\u76d8\u3001\u7d27\u5f20\u7684\u5185\u5b58\u3001\u7f3a\u4e4f\u7d22\u5f15\u7684\u67e5\u8be2\u3001\u9519\u914d\u7684\u8d85\u65f6\u8bbe\u7f6e\u3001\u8fc7\u4e8e\u4fdd\u5b88\u7684\u5185\u6838\u9ed8\u8ba4\u503c\u2026\u2026\u53ea\u76ef\u7740 CPU\uff0c\u5c31\u50cf\u9760\u673a\u623f\u98ce\u6247\u7684\u566a\u97f3\u5927\u5c0f\u6765\u5224\u65ad\u7cfb\u7edf\u72b6\u51b5\uff1b\u6709\u65f6\u80fd\u7ed9\u4f60\u4e00\u70b9\u6697\u793a\uff0c\u4f46\u8ddf\u771f\u5b9e\u6545\u4e8b\u76f8\u53bb\u751a\u8fdc\u3002\n  <\/p>\n<p>\n    \u66f4\u63a5\u8fd1\u751f\u4ea7\u7ea7\u7684\u505a\u6cd5\uff0c\u662f\u628a\u5ef6\u8fdf\u89c6\u4f5c\u6574\u4e2a\u6280\u672f\u6808\u7684\u7efc\u5408\u5c5e\u6027\uff1a\u4ece\u56fd\u9645\u5149\u7f06\u548c\u673a\u623f\u8def\u7531\uff0c\u5230\u78c1\u76d8\u56fa\u4ef6\u3001\u5185\u6838\u961f\u5217\u3001\u8fd0\u884c\u65f6\u884c\u4e3a\u3001\u6570\u636e\u8868\u7ed3\u6784\uff0c\u90fd\u5728\u5176\u4e2d\u8d77\u4f5c\u7528\u3002\u5982\u679c\u4f60\u628a\u6bcf\u4e00\u53f0\u65e5\u672c\u670d\u52a1\u5668\u90fd\u5f53\u4f5c\u4e00\u4e2a\u7531\u591a\u91cd\u7ea6\u675f\u6784\u6210\u7684\u7cfb\u7edf\uff0c\u800c\u4e0d\u662f\u4e00\u4e2a\u7b80\u5355\u7684 CPU \u767e\u5206\u6bd4\u8bfb\u6570\uff0c\u4f60\u5c31\u80fd\u66f4\u5feb\u5730\u627e\u5230\u5e76\u4fee\u590d\u771f\u6b63\u7684\u74f6\u9888\uff0c\u66f4\u806a\u660e\u5730\u82b1\u5728\u65e5\u672c\u670d\u52a1\u5668\u79df\u7528\u4e0e\u670d\u52a1\u5668\u6258\u7ba1\u4e0a\u7684\u9884\u7b97\uff0c\u4e5f\u80fd\u4e3a\u7528\u6237\u5e26\u6765\u660e\u663e\u66f4\u654f\u6377\u7684\u4f53\u9a8c\uff0c\u7528\u6570\u636e\u800c\u975e\u731c\u6d4b\uff0c\u4e3a\u300c\u65e5\u672c\u670d\u52a1\u5668\u6027\u80fd\u4f18\u5316\u300d\u753b\u4e0a\u4e00\u4e2a\u95ed\u73af\u3002\n  <\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f60\u6253\u5f00 Grafana \u6216 htop\uff0c\u770b\u4e86\u4e00\u773c\u65e5\u672c\u8282\u70b9\uff1aCPU \u53ea\u6709 15%\uff0c\u5185\u5b58\u770b\u8d77\u6765\u4e5f\u5f88\u6b63\u5e38\uff0c\u8d1f\u8f7d\u5e73\u5747\u503c\u5f88\u5e73\u7a33\uff0c\u4f46\u8bf7\u6c42\u5c31\u662f\u5f88\u6162\uff0c\u76d1\u63a7\u5927\u76d8\u4e00\u7247\u7ea2\u3002\u8fd9\u79cd\u300c\u56fe\u8868\u5f88\u6f02\u4eae\u3001\u5ef6\u8fdf\u5374\u5f88\u4e11\u964b\u300d\u7684\u53cd\u5dee\uff0c\u624d\u662f\u5927\u591a\u6570 \u65e5\u672c\u670d\u52a1\u5668 \u6027\u80fd\u6392\u67e5\u771f\u6b63\u7684\u8d77\u70b9\u3002 \u6838\u5fc3\u95ee\u9898\uff1aCPU \u4f4e\u4e0d\u4ee3\u8868\u670d\u52a1\u5668\u5c31\u5feb \u5bf9\u6280\u672f\u56e2\u961f\u6765\u8bf4\uff0c\u201cCPU \u4e0d\u9ad8\u6240\u4ee5\u673a\u5668\u6ca1\u95ee\u9898\u201d\u8fd9\u4e2a\u5047\u8bbe\uff0c\u662f\u7ebf\u4e0a\u73af\u5883\u91cc\u4ee3\u4ef7\u6700\u9ad8\u7684\u9519\u89c9\u4e4b\u4e00\u3002\u4e00\u53f0\u670d\u52a1\u5668\u53ef\u4ee5\u628a\u5927\u90e8\u5206\u65f6\u95f4\u90fd\u82b1\u5728\u7b49\u5f85 I\/O\u3001\u5361\u5728\u62e5\u585e\u7684 TCP 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