{"id":36650,"date":"2026-10-16T16:38:51","date_gmt":"2026-10-16T08:38:51","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-tw\/diagnosing-slow-japan-servers-with-low-cpu\/"},"modified":"2026-10-16T16:48:46","modified_gmt":"2026-10-16T08:48:46","slug":"diagnosing-slow-japan-servers-with-low-cpu","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/diagnosing-slow-japan-servers-with-low-cpu\/","title":{"rendered":"\u5728 CPU \u4f7f\u7528\u7387\u4e0d\u9ad8\u6642\u8a3a\u65b7\u65e5\u672c\u4f3a\u670d\u5668\u8b8a\u6162\u554f\u984c"},"content":{"rendered":"<p>\n    \u4f60\u6253\u958b Grafana \u6216 htop\uff0c\u770b\u4e86\u4e00\u773c\u65e5\u672c\u7bc0\u9ede\uff1aCPU \u53ea\u6709 15%\uff0c\u8a18\u61b6\u9ad4\u770b\u8d77\u4f86\u4e5f\u5f88\u6b63\u5e38\uff0c\u8ca0\u8f09\u5e73\u5747\u503c\u5f88\u5e73\u7a69\uff0c\u4f46\u8acb\u6c42\u5c31\u662f\u5f88\u6162\uff0c\u76e3\u63a7\u5927\u76e4\u4e00\u7247\u7d05\u3002\u9019\u7a2e\u300c\u5716\u8868\u5f88\u6f02\u4eae\u3001\u5ef6\u9072\u537b\u5f88\u919c\u964b\u300d\u7684\u53cd\u5dee\uff0c\u624d\u662f\u5927\u591a\u6578<br \/>\n    <a target=\"_self\" href=\"https:\/\/www.varidata.com\/zh-tw\/server\/tokyo\/cn2\/\">\u65e5\u672c\u4f3a\u670d\u5668<\/a><br \/>\n    \u6548\u80fd\u6392\u67e5\u771f\u6b63\u7684\u8d77\u9ede\u3002\n  <\/p>\n<h2><strong>\u6838\u5fc3\u554f\u984c\uff1aCPU \u4f4e\u4e0d\u4ee3\u8868\u4f3a\u670d\u5668\u5c31\u5feb<\/strong><\/h2>\n<p>\n    \u5c0d\u6280\u8853\u5718\u968a\u4f86\u8aaa\uff0c\u300cCPU \u4e0d\u9ad8\u6240\u4ee5\u6a5f\u5668\u6c92\u554f\u984c\u300d\u9019\u500b\u5047\u8a2d\uff0c\u662f\u7dda\u4e0a\u74b0\u5883\u88e1\u4ee3\u50f9\u6700\u9ad8\u7684\u932f\u89ba\u4e4b\u4e00\u3002\u4e00\u53f0\u4f3a\u670d\u5668\u53ef\u4ee5\u628a\u5927\u90e8\u5206\u6642\u9593\u90fd\u82b1\u5728\u7b49\u5f85 I\/O\u3001\u5361\u5728\u58c5\u585e\u7684 TCP \u8def\u5f91\u5f8c\u9762\uff0c\u6216\u8005\u88ab\u67d0\u500b\u7de9\u6162\u7684\u4e0a\u6e38\u4f9d\u8cf4\u963b\u585e\u4f4f\uff0c\u800c CPU \u8a08\u6578\u5668\u4f9d\u7136\u4e4f\u5584\u53ef\u9673\u3002\u65e5\u672c\u7bc0\u9ede\u6703\u653e\u5927\u9019\u7a2e\u73fe\u8c61\uff0c\u56e0\u70ba\u5f9e\u4e2d\u570b\u3001\u5317\u7f8e\u6216\u6b50\u6d32\u5230\u6771\u4eac\u3001\u2f24\u962a\u6a5f\u623f\u7684\u7db2\u8def\u8def\u5f91\uff0c\u5f80\u5f80\u758a\u52a0\u4e86\u8907\u96dc\u7684\u8def\u7531\u3001\u96fb\u4fe1\u5546\u4e92\u806f\u95dc\u4fc2\u548c\u983b\u5bec\u9650\u5236\uff0c\u518d\u52a0\u4e0a\u4f60\u672c\u5730\u81ea\u8eab\u7684\u74f6\u9838\u3002\n  <\/p>\n<p>\n    \u7528\u7aef\u5230\u7aef\u5ef6\u9072\u800c\u4e0d\u662f\u300cCPU \u4f7f\u7528\u7387\u767e\u5206\u6bd4\u300d\u4f86\u601d\u8003\uff0c\u662f\u628a\u666e\u901a\u904b\u7dad\u548c\u52d9\u5be6 SRE \u5340\u5206\u958b\u4f86\u7684\u601d\u7dad\u65b9\u5f0f\u3002\u7576\u67d0\u500b\u65e5\u672c\u7bc0\u9ede\u8868\u73fe\u300c\u5f88\u6162\u300d\u6642\uff0c\u4f60\u61c9\u8a72\u628a CPU \u4f7f\u7528\u7387\u7576\u6210\u6574\u500b\u6548\u80fd\u5716\u88e1\u6975\u5c0f\u7684\u4e00\u584a\u8cc7\u8a0a\uff0c\u800c\u628a\u8996\u91ce\u64f4\u5c55\u5230\u6838\u5fc3\u3001\u7db2\u5361\u3001\u78c1\u789f\u3001\u57f7\u884c\u968e\u6bb5\u3001\u8cc7\u6599\u5eab\u3001CDN \u4ee5\u53ca\u4e0a\u6e38\u670d\u52d9\u7b49\u5168\u93c8\u8def\u3002\n  <\/p>\n<h2><strong>\u7406\u89e3\u65e5\u672c\u4f3a\u670d\u5668\u5ef6\u9072\u7684\u6574\u9ad4\u6a21\u578b<\/strong><\/h2>\n<p>\n    \u8207\u5176\u80e1\u4e82\u5617\u8a66\u5404\u7a2e\u8abf\u6574\uff0c\u4e0d\u5982\u5148\u642d\u4e00\u500b\u7d50\u69cb\u5316\u7684\u6a21\u578b\uff0c\u5f04\u6e05\u4e00\u689d\u8acb\u6c42\u662f\u5982\u4f55\u5728\u7cfb\u7d71\u4e2d\u6d41\u52d5\u7684\u3002\u9ad8\u5c64\u6b21\u4f86\u770b\uff0c\u4e00\u500b\u6253\u5230\u65e5\u672c\u5be6\u4f8b\u7684 HTTP \u8acb\u6c42\uff0c\u5927\u81f4\u6703\u7d93\u6b77\u4e0b\u9762\u9019\u4e9b\u968e\u6bb5\uff1a\n  <\/p>\n<ol>\n<li>\u7528\u6236\u7aef\u5728\u570b\u969b\u6216\u5340\u57df\u7dda\u8def\u4e0a\u767c\u8d77 TCP \u4e09\u6b21\u63e1\u624b\u3002<\/li>\n<li>\u5c01\u5305\u7a7f\u904e\u591a\u500b\u96fb\u4fe1\u5546\u3001IXP\uff0c\u751a\u81f3\u53ef\u80fd\u7d93\u904e\u6d77\u5e95\u5149\u7e9c\uff0c\u6700\u5f8c\u624d\u62b5\u9054\u65e5\u672c\u6a5f\u623f\u3002<\/li>\n<li>\u908a\u7de3\u7bc0\u9ede\u6216\u8ca0\u8f09\u5e73\u8861\u5668\u628a\u6d41\u91cf\u8f49\u767c\u7d66\u61c9\u7528\u7bc0\u9ede\uff08\u865b\u6a5f\u3001\u88f8\u6a5f\u6216\u5bb9\u5668\uff09\u3002<\/li>\n<li>\u6838\u5fc3\u6392\u7a0b\u884c\u7a0b\u6216\u5bb9\u5668\u5167\u7684 worker\uff0c\u8b80\u53d6\u8acb\u6c42\u4e26\u5411\u4e0a\u50b3\u905e\u7d66\u901a\u8a0a\u5354\u5b9a\u5806\u758a\u548c\u61c9\u7528\u3002<\/li>\n<li>\u61c9\u7528\u767c\u8d77\u672c\u5730\u547c\u53eb\uff1a\u78c1\u789f I\/O\u3001\u5feb\u53d6\u67e5\u8a62\u3001\u8cc7\u6599\u5eab\u67e5\u8a62\u3001\u5c0d\u5176\u4ed6\u670d\u52d9\u7684 RPC \u7b49\u3002<\/li>\n<li>\u6700\u7d42\u628a\u97ff\u61c9\u5beb\u56de\u5230 socket\uff0c\u7d93\u7531\u540c\u6a23\u7684\u8def\u5f91\u56de\u50b3\u5230\u7528\u6236\u7aef\u3002<\/li>\n<\/ol>\n<p>\n    \u9019\u689d\u93c8\u8def\u4e0a\u7684\u4efb\u610f\u4e00\u6b65\uff0c\u90fd\u53ef\u80fd\u662f\u771f\u6b63\u7684\u74f6\u9838\uff0c\u800c CPU \u8a08\u6578\u5668\u4f9d\u7136\u5f88\u300c\u5b89\u975c\u300d\u3002\u4f60\u7684\u4efb\u52d9\u5c31\u662f\u627e\u51fa\u5230\u5e95\u662f\u54ea\u4e00\u6bb5\u5728\u5361\u9813\u3002\u9019\u9700\u8981\u771f\u5be6\u7684\u89c0\u6e2c\u8cc7\u6599\uff0c\u800c\u4e0d\u662f\u62cd\u8166\u888b\uff1a\u7528 traceroute \u548c MTR \u67e5\u8def\u5f91\uff0c\u7528\u7cfb\u7d71\u6307\u6a19\u770b I\/O \u548c\u8a18\u61b6\u9ad4\uff0c\u7528 APM \u770b\u61c9\u7528\u547c\u53eb\u93c8\uff0c\u7528\u8cc7\u6599\u5eab\u5c64\u7d1a\u7684\u89c0\u6e2c\u624b\u6bb5\u770b\u67e5\u8a62\u60c5\u6cc1\u3002\n  <\/p>\n<h2><strong>\u7db2\u8def\u73fe\u5be6\uff1a\u5ef6\u9072\u3001\u6296\u52d5\u548c\u5c01\u5305\u907a\u5931<\/strong><\/h2>\n<p>\n    \u5730\u5716\u4e0a\u770b\uff0c\u65e5\u672c\u96e2\u4e0d\u5c11\u4e9e\u6d32\u570b\u5bb6\u90fd\u4e0d\u9060\uff0c\u4f46\u7269\u7406\u898f\u5f8b\u548c\u96fb\u4fe1\u653f\u7b56\u53ef\u4e0d\u770b\u5730\u5716\u3002\u6d41\u91cf\u53ef\u80fd\u5728\u591a\u500b\u96fb\u4fe1\u5546\u4e4b\u9593\u300c\u6253\u8f49\u300d\uff0c\u6216\u8005\u7d93\u904e\u58c5\u585e\u7684\u4ea4\u63db\u9ede\u3002\u7576\u5de5\u7a0b\u5e2b\u8aaa\u300c\u65e5\u672c\u90a3\u53f0\u6a5f\u5668\u5f88\u6162\u300d\u6642\uff0c\u7b2c\u4e00\u4ef6\u8981\u78ba\u8a8d\u7684\u4e8b\u60c5\uff0c\u662f\u554f\u984c\u662f\u5426\u65e9\u5728 L3\/L4 \u5c31\u5df2\u7d93\u51fa\u73fe\uff0c\u800c\u6839\u672c\u8f2a\u4e0d\u5230\u4f60\u7684\u7a0b\u5f0f\u78bc\u57f7\u884c\u3002\n  <\/p>\n<ul>\n<li>\n      <strong>\u6e2c\u91cf\u57fa\u7dda RTT\uff1a<\/strong>\u5f9e\u7528\u6236\u6240\u5728\u5730\u5340\u53ca\u5176\u4ed6\u5340\u57df\u57f7\u884c <code>ping<\/code> \u548c <code>mtr<\/code>\uff0c\u8a18\u9304 p50\/p95 \u5ef6\u9072\u548c\u5c01\u5305\u907a\u5931\u7387\u3002\u5982\u679c p95 \u5728\u6bcf\u5929\u665a\u4e0a\u6216\u696d\u52d9\u9ad8\u5cf0\u671f\u7a81\u7136\u98c6\u5347\uff0c\u5f88\u6709\u53ef\u80fd\u662f\u96fb\u4fe1\u5546\u7dda\u8def\u58c5\u585e\u3002\n    <\/li>\n<li>\n      <strong>\u8ffd\u8e64\u8def\u5f91\uff1a<\/strong>\u5f9e\u591a\u500b\u7db2\u8def\uff08\u5982\u4e2d\u570b\u96fb\u4fe1\u3001\u672c\u5730 ISP\u3001\u7f8e\u570b\u96f2\u7aef\u4f9b\u61c9\u5546\u7b49\uff09\u5c0d\u65e5\u672c\u6a5f\u6ac3\u767c\u8d77 <code>traceroute<\/code> \u6216\u4e09\u5c64\u8def\u5f91\u8ffd\u8e64\uff0c\u89c0\u5bdf RTT \u7a81\u7136\u98c6\u5347\u6216\u51fa\u73fe\u5c01\u5305\u907a\u5931\u7684\u7bc0\u9ede\u3002\n    <\/li>\n<li>\n      <strong>\u95dc\u6ce8\u983b\u5bec\u6253\u6eff\uff1a<\/strong>\u5373\u4fbf\u6a19\u7a31\u662f 1 Gbit \u7dda\u8def\uff0c\u5435\u9b27\u7684\u300c\u9130\u5c45\u300d\u3001DDoS \u653b\u64ca\u6216\u6279\u6b21\u4f5c\u696d\uff0c\u90fd\u53ef\u80fd\u628a\u51fa\u53e3\u983b\u5bec\u6253\u6eff\u3002\u76e3\u63a7\u6bcf\u500b\u7db2\u5361\u4ecb\u9762\u7684\u541e\u5410\uff0c\u800c\u4e0d\u662f\u53ea\u770b CPU\uff0c\u624d\u80fd\u77e5\u9053 NIC \u662f\u5426\u6210\u4e86\u771f\u6b63\u7684\u74f6\u9838\u3002\n    <\/li>\n<\/ul>\n<p>\n    \u5982\u679c\u5716\u8868\u986f\u793a RTT \u5076\u723e\u66b4\u6f32\uff0c\u800c\u4f3a\u670d\u5668\u672c\u8eab\u5341\u5206\u5b89\u975c\uff0c\u90a3\u9ebc\u52a0 CPU \u6216\u52a0\u8a18\u61b6\u9ad4\u90fd\u6c92\u7528\u3002\u6b63\u78ba\u7684\u65b9\u5411\u662f\u6700\u4f73\u5316\u8def\u7531\u3001\u9078\u64c7\u66f4\u597d\u7684\u96fb\u4fe1\u5546\u51fa\u53e3\uff0c\u6216\u8005\u628a\u975c\u614b\u6d41\u91cf\u900f\u904e\u66f4\u63a5\u8fd1\u7528\u6236\u7684 CDN \u7bc0\u9ede\u9032\u884c\u5206\u64d4\uff0c\u6e1b\u5c11\u8de8\u5883\u9577\u9014\u5b58\u53d6\u65e5\u672c\u7684\u9ad8\u6210\u672c\u8df3\u6578\u3002\n  <\/p>\n<h2><strong>\u78c1\u789f I\/O\uff1aCPU \u5f88\u9592\uff0c\u5132\u5b58\u537b\u5feb\u6490\u4e0d\u4f4f\u4e86<\/strong><\/h2>\n<p>\n    \u5728\u898f\u683c\u504f\u4f4e\u7684\u65e5\u672c\u7bc0\u9ede\u4e0a\uff0c\u4e00\u500b\u5f88\u5e38\u898b\u7684\u6a21\u5f0f\u662f\uff1a\u7de9\u6162\u7684 SATA HDD \u6216\u5171\u4eab NAS \u628a\u6240\u6709\u8acb\u6c42\u90fd\u62d6\u6162\uff0c\u800c CPU \u4f7f\u7528\u7387\u5047\u88dd\u4e00\u5207\u6b63\u5e38\u3002\u5982\u679c\u4f60\u7684\u6280\u8853\u68e7\u9ad8\u5ea6\u4f9d\u8cf4 I\/O\uff08\u8cc7\u6599\u5eab\u3001\u65e5\u8a8c\u3001\u5927\u6578\u64da\u5206\u6790\u4f5c\u696d\uff09\uff0c\u78c1\u789f\u5ef6\u9072\u6703\u6084\u7121\u8072\u606f\u5730\u62c9\u9ad8\u5c3e\u90e8\u5ef6\u9072\uff0c\u800c\u6838\u5fc3\u537b\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> \u6aa2\u67e5 I\/O \u7b49\u5f85\u6642\u9593\uff08<code>wa<\/code>\uff09\u3002\u5982\u679c <code>wa<\/code> \u5f88\u9ad8\uff0c\u540c\u6642\u78c1\u789f\u7684\u4f47\u5217\u6df1\u5ea6\u548c 99 \u5206\u4f4d\u8b80\u5beb\u5ef6\u9072\u98c6\u5347\u5230\u5e7e\u5341\u751a\u81f3\u5e7e\u767e\u6beb\u79d2\uff0c\u90a3\u5c31\u8aaa\u660e\u4f60\u6b63\u9762\u81e8 I\/O \u554f\u984c\u3002\n    <\/li>\n<li>\n      <strong>\u51b7\u71b1\u8cc7\u6599\u5206\u96e2\uff1a<\/strong>\u628a\u5beb\u5165\u983b\u7e41\u7684\u65e5\u8a8c\u6216\u5206\u6790\u843d\u76e4\u8cc7\u6599\u653e\u5728\u8207\u5ef6\u9072\u654f\u611f\u8cc7\u6599\u4e0d\u540c\u7684\u5377\u4e0a\u3002\u5c0d\u5171\u4eab\u65e5\u672c\u4e3b\u6a5f\u4f86\u8aaa\u5c24\u70ba\u91cd\u8981\uff0c\u56e0\u70ba\u300c\u9130\u5c45\u300d\u53ef\u80fd\u5728\u540c\u4e00\u5377\u4e0a\u760b\u72c2\u5beb\u5165\u3002\n    <\/li>\n<li>\n      <strong>\u70ba\u95dc\u9375\u8def\u5f91\u63db\u7528 SSD \u6216 NVMe\uff1a<\/strong>\u5c0d OLTP \u8cc7\u6599\u5eab\u6216\u9ad8 QPS \u7684 API \u800c\u8a00\uff0cHDD \u5e7e\u4e4e\u7b49\u540c\u65bc\u7d66\u81ea\u5df1\u505a\u300c\u963b\u65b7\u670d\u52d9\u653b\u64ca\u300d\u3002\u5728\u65e5\u672c\u6a5f\u623f\u88e1\u70ba\u95dc\u9375\u696d\u52d9\u4f7f\u7528 NVMe \u5132\u5b58\uff0c\u5f80\u5f80\u6bd4\u591a\u52a0\u5169\u9846 vCPU \u9084\u66f4\u6709\u50f9\u503c\u3002\n    <\/li>\n<\/ul>\n<p>\n    \u4e00\u500b\u5178\u578b\u75c7\u72c0\u662f\uff1aLinux \u4e0b\u7684 Web \u4f3a\u670d\u5668\u6216\u61c9\u7528\u57f7\u884c\u7dd2\u5927\u91cf\u8655\u65bc\u300cD\u300d\uff08\u4e0d\u53ef\u4e2d\u65b7\u7761\u7720\uff09\u72c0\u614b\uff0c\u88ab\u78c1\u789f I\/O \u5361\u4f4f\uff0c\u800c CPU \u5716\u8868\u537b\u5f88\u4f4e\u3002\u5728\u9019\u7a2e\u5834\u666f\u4e0b\uff0c\u91cd\u69cb\u67e5\u8a62\u6216\u6a6b\u5411\u64f4\u5145\u90fd\u7121\u6fdf\u65bc\u4e8b\uff0c\u9664\u975e\u4f60\u5148\u89e3\u6c7a\u5e95\u5c64\u5132\u5b58\u5ef6\u9072\u6216\u8cc7\u6599\u76e4\u7684\u898f\u5283\u554f\u984c\u3002\n  <\/p>\n<h2><strong>\u8a18\u61b6\u9ad4\u3001Swap \u8207\u96b1\u5f62\u6296\u52d5<\/strong><\/h2>\n<p>\n    \u5982\u679c\u4f60\u53ea\u770b\u5df2\u914d\u7f6e\u8a18\u61b6\u9ad4\u5927\u5c0f\uff0c\u8a18\u61b6\u9ad4\u5716\u8868\u5f88\u5bb9\u6613\u986f\u5f97\u4e00\u7247\u300c\u7da0\u6cb9\u6cb9\u300d\u3002\u66f4\u95dc\u9375\u7684\u8a0a\u865f\uff0c\u662f\u6838\u5fc3\u5728\u591a\u5927\u7a0b\u5ea6\u4e0a\u4f9d\u8cf4 swap\uff0c\u6216\u8005\u5728\u58d3\u529b\u4e0b\u983b\u7e41\u56de\u6536\u9801\u6846\u3002\u5728\u8a18\u61b6\u9ad4\u6709\u9650\u7684\u65e5\u672c\u7bc0\u9ede\u4e0a\uff0c\u9019\u4e9b swap \u884c\u70ba\u5e38\u5e38\u4e0d\u662f\u900f\u904e\u9ad8 CPU \u5448\u73fe\uff0c\u800c\u662f\u4ee5\u300c\u5947\u602a\u7684\u9813\u632b\u300d\u548c\u7a81\u767c\u6027\u5ef6\u9072\u7684\u65b9\u5f0f\u51fa\u73fe\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\u6cc1\u548c\u9801\u6d3b\u52d5\uff0c\u800c\u4e0d\u53ea\u662f\u7e3d\u8a18\u61b6\u9ad4\u5360\u7528\u3002\u5982\u679c swap \u4e0d\u70ba\u96f6\u9084\u5728\u4e0d\u65b7\u8b8a\u52d5\uff0c\u5c31\u8aaa\u660e\u4f60\u6b63\u5728\u7528\u78c1\u789f\u5ef6\u9072\u63a9\u84cb\u8a18\u61b6\u9ad4\u58d3\u529b\u3002\n    <\/li>\n<li>\n      \u6aa2\u67e5\u6838\u5fc3\u670d\u52d9\u7684\u5de5\u4f5c\u96c6\uff1a\u8cc7\u6599\u5eab\u3001\u5feb\u53d6\u3001\u61c9\u7528\u884c\u7a0b\u7b49\u3002\u5982\u679c\u90e8\u7f72\u5728\u65e5\u672c\u7684\u4e3b\u8cc7\u6599\u5eab\u5be6\u4f8b\u7de9\u885d\u6c60\u904e\u5c0f\uff0c\u5bb9\u4e0d\u4e0b\u6d3b\u8e8d\u8cc7\u6599\u96c6\uff0c\u90a3\u9ebc\u6bcf\u4e00\u6b21\u5feb\u53d6\u672a\u547d\u4e2d\u90fd\u8981\u89f8\u767c\u78c1\u789f\u5b58\u53d6\u3002\n    <\/li>\n<li>\n      \u63a7\u5236\u5931\u63a7\u7684\u8a18\u61b6\u9ad4\u5206\u914d\uff1a\u5f88\u591a\u8a9e\u8a00\u57f7\u884c\u968e\u6bb5\uff08JVM\u3001Node.js\u3001Python\uff09\u6703\u7522\u751f\u8a18\u61b6\u9ad4\u788e\u7247\u4e26\u50be\u5411\u65bc\u300c\u56e4\u7a4d\u300d\u8a18\u61b6\u9ad4\u3002\u8981\u6839\u64da\u771f\u5be6\u6d41\u91cf\u6a21\u5f0f\u4f86\u8abf\u6821\u5806\u5927\u5c0f\u3001GC \u7b56\u7565\u548c worker \u6578\u91cf\uff0c\u800c\u4e0d\u662f\u4f9d\u8cf4\u9810\u8a2d\u914d\u7f6e\u3002\n    <\/li>\n<\/ol>\n<p>\n    \u5728\u8a18\u61b6\u9ad4\u58d3\u529b\u4e0b\uff0cCPU \u4f7f\u7528\u7387\u53ef\u80fd\u4f9d\u7136\u4e0d\u9ad8\uff0c\u56e0\u70ba\u57f7\u884c\u7dd2\u90fd\u5728\u7b49\u5f85\u88ab\u4ea4\u63db\u5230\u78c1\u789f\u7684\u9801\u6846\u6216\u8005\u88ab\u7cfb\u7d71\u547c\u53eb\u963b\u585e\u3002\u70ba\u65e5\u672c\u6a5f\u6ac3\u7bc0\u9ede\u589e\u52a0\u8a18\u61b6\u9ad4\uff0c\u6216\u8005\u58d3\u7e2e\u55ae\u884c\u7a0b\u8a18\u61b6\u9ad4\u5360\u7528\uff0c\u5f80\u5f80\u80fd\u7acb\u523b\u5e73\u6ed1 p95 \u5ef6\u9072\uff0c\u800c\u4e0d\u7528\u52d5 CPU \u4e00\u6839\u6c57\u6bdb\u3002\n  <\/p>\n<h2><strong>\u61c9\u7528\u5c64\u74f6\u9838\uff1a\u540c\u6b65\u547c\u53eb\u8207\u55ae\u57f7\u884c\u7dd2\u8def\u5f91<\/strong><\/h2>\n<p>\n    \u5f88\u591a\u300c\u65e5\u672c\u7bc0\u9ede\u5f88\u6162\u300d\u7684\u5de5\u55ae\uff0c\u8ffd\u5230\u6700\u5f8c\u65e2\u4e0d\u662f\u65e5\u672c\u7684\u934b\uff0c\u4e5f\u4e0d\u662f\u786c\u9ad4\u7684\u934b\uff0c\u800c\u662f\u61c9\u7528\u8a2d\u8a08\u5728\u8acb\u6c42\u8def\u5f91\u4e0a\u5e8f\u5217\u5316\u4e86\u592a\u591a\u5de5\u4f5c\u3002\u5728 PHP\u3001Python\u3001Ruby \u4ee5\u53ca\u67d0\u4e9b Node.js \u90e8\u7f72\u6a21\u5f0f\u4e0b\uff0c\u5c0d\u5916\u90e8\u7cfb\u7d71\u7684\u540c\u6b65\u547c\u53eb\u6703\u963b\u585e worker\uff0c\u5373\u4f7f\u6a5f\u5668\u4e0a\u9084\u6709\u4e00\u5806\u7a7a\u9592\u6838\u5fc3\u3002\n  <\/p>\n<ul>\n<li>\n      <strong>\u5e8f\u5217\u5316\u5916\u90e8\u547c\u53eb\uff1a<\/strong>\u4e00\u500b API \u7aef\u9ede\u53ef\u80fd\u4f9d\u6b21\u547c\u53eb\u4e09\u500b\u5fae\u670d\u52d9\uff0c\u7136\u5f8c\u518d\u5b58\u53d6\u91d1\u6d41\u9598\u9053\uff0c\u628a\u5ef6\u9072\u6210\u500d\u758a\u52a0\u3002\u5c0d\u4f5c\u696d\u7cfb\u7d71\u4f86\u8aaa\uff0c\u9019\u53ea\u662f\u4e00\u500b\u5927\u90e8\u5206\u6642\u9593\u90fd\u5728\u7b49\u5f85\u7db2\u8def I\/O \u7684\u884c\u7a0b\u3002\n    <\/li>\n<li>\n      <strong>\u6bcf\u6b21\u8acb\u6c42\u90fd\u505a\u91cd\u578b\u904b\u7b97\uff1a<\/strong>\u5982\u679c\u6bcf\u500b\u8acb\u6c42\u90fd\u8981\u540c\u6b65\u7522\u751f PDF\uff0c\u6216\u8005\u8dd1\u8907\u96dc\u5831\u8868\u67e5\u8a62\uff0c\u5f88\u5feb\u5c31\u6703\u628a\u56de\u61c9\u6642\u9593\u9810\u7b97\u7528\u5149\uff0c\u9084\u6c92\u7b49 CPU \u771f\u6b63\u88ab\u5403\u6eff\u3002\n    <\/li>\n<li>\n      <strong>\u5168\u57df\u9396\u6216\u4e92\u65a5\uff1a<\/strong>\u8a2d\u8a08\u4e0d\u7576\u7684\u5171\u4eab\u72c0\u614b\uff08\u6a94\u6848\u9396\u3001\u5feb\u53d6\u9396\u3001\u8cc7\u6599\u5eab\u5217\u9396\u7b49\uff09\u6703\u628a\u672c\u8a72\u5e73\u884c\u7684\u6d41\u91cf\u5e8f\u5217\u5316\uff0c\u518d\u6b21\u5c0e\u81f4 CPU \u9592\u8457\u3001\u57f7\u884c\u7dd2\u5728\u7b49\u3002\n    <\/li>\n<\/ul>\n<p>\n    \u89e3\u6c7a\u9019\u985e\u554f\u984c\uff0c\u9760\u7684\u662f\u67b6\u69cb\u8abf\u6574\u800c\u4e0d\u662f\u300c\u52a0\u6a5f\u5668\u300d\u3002\u628a\u91cd\u6d3b\u642c\u5230\u80cc\u666f worker\uff0c\u900f\u904e\u4f47\u5217\u975e\u540c\u6b65\u8655\u7406\uff0c\u5728\u5408\u9069\u7684\u5730\u65b9\u63a1\u7528\u975e\u540c\u6b65 I\/O\uff0c\u76e1\u91cf\u907f\u514d\u540c\u6b65\u4e32\u806f\u591a\u500b\u9060\u7aef\u547c\u53eb\u3002\u5728\u65e5\u672c\u6a5f\u623f\u70ba\u591a\u6d32\u7528\u6236\u670d\u52d9\u6642\uff0c\u6bcf\u4e00\u6b21\u8de8\u7db2\u8def\u547c\u53eb\u90fd\u5df2\u7d93\u5f88\u6602\u8cb4\uff1b\u5982\u679c\u4f60\u5728\u61c9\u7528\u5c64\u628a\u9019\u4e9b\u300c\u8cb4\u64cd\u4f5c\u300d\u4e32\u6210\u4e00\u689d\u9577\u934a\uff0c\u518d\u5feb\u7684 CPU \u4e5f\u6703\u88ab\u62d6\u6210\u6162\u9ad4\u9a57\u3002\n  <\/p>\n<h2><strong>\u8cc7\u6599\u5eab\u8207\u5feb\u53d6\uff1a\u8001\u719f\u4eba\u5acc\u7591\u72af<\/strong><\/h2>\n<p>\n    \u5982\u679c\u65e5\u672c\u6a5f\u623f\u88e1\u7684 Web \u5c64\u770b\u4e0a\u53bb\u90fd\u5f88\u4e7e\u6de8\uff0c\u8acb\u6c42\u537b\u4f9d\u7136\u5f88\u6162\uff0c\u90a3\u9ebc\u4e0b\u4e00\u500b\u6700\u53ef\u80fd\u7684\u554f\u984c\u6e90\u982d\u5c31\u662f\u8cc7\u6599\u5c64\u3002\u6162\u67e5\u8a62\u3001\u7f3a\u5931\u7d22\u5f15\u4ee5\u53ca\u56c9\u5506\u7684 ORM \u5b58\u53d6\u6a21\u5f0f\uff0c\u90fd\u6703\u88fd\u9020\u51fa\u5927\u91cf\u5ef6\u9072\uff0c\u800c\u9019\u901a\u5e38\u4e0d\u6703\u5728\u61c9\u7528\u7bc0\u9ede\u7684 CPU \u4e0a\u76f4\u63a5\u8868\u73fe\u51fa\u4f86\u3002\n  <\/p>\n<ol>\n<li>\n      <strong>\u958b\u555f\u4e26\u95b1\u8b80\u6162\u67e5\u8a62\u65e5\u8a8c\uff1a<\/strong>MySQL\u3001PostgreSQL \u7b49\u8cc7\u6599\u5eab\u90fd\u80fd\u8a18\u9304\u8d85\u904e\u6307\u5b9a\u95be\u503c\u7684\u6162\u67e5\u8a62\u3002\u6309\u7e3d\u8017\u6642\u548c\u51fa\u73fe\u6b21\u6578\u6392\u5e8f\uff0c\u800c\u4e0d\u50c5\u50c5\u662f\u6700\u9577\u8017\u6642\uff0c\u5c31\u80fd\u66f4\u6e96\u78ba\u5730\u767c\u73fe\u71b1\u9ede\u554f\u984c\u3002\n    <\/li>\n<li>\n      <strong>\u70ba\u8b80\u591a\u5beb\u5c11\u7684\u5834\u666f\u8a2d\u8a08\u7d22\u5f15\uff1a<\/strong>\u7576\u67d0\u500b\u71b1\u9580\u7aef\u9ede\u6309\u591a\u6b04\u4f4d\u904e\u6ffe\uff0c\u537b\u53ea\u80fd\u9760\u5168\u8868\u6383\u63cf\u6642\uff0c\u898f\u6a21\u4e00\u4e0a\u53bb\u4ee3\u50f9\u5c31\u975e\u5e38\u53ef\u89c0\u3002\u70ba\u65e5\u672c\u8cc7\u6599\u5eab\u7bc0\u9ede\u4e0a\u7684\u9019\u4e9b\u5b58\u53d6\u6a21\u5f0f\u8a2d\u8a08\u5408\u9069\u7684\u8907\u5408\u7d22\u5f15\uff0c\u5f80\u5f80\u6bd4\u591a\u52a0\u5e7e\u9846 CPU \u66f4\u80fd\u6709\u6548\u964d\u4f4e\u5c3e\u90e8\u5ef6\u9072\u3002\n    <\/li>\n<li>\n      <strong>\u91cd\u8996\u8cc7\u6599\u5c40\u90e8\u6027\uff1a<\/strong>\u76e1\u91cf\u6e1b\u5c11\u65e5\u672c\u7bc0\u9ede\u5c0d\u7570\u5730\u8cc7\u6599\u5eab\u7684\u8de8\u5340\u57df\u547c\u53eb\u3002\u5728\u67e5\u8a62\u8def\u5f91\u88e1\uff0c\u4e00\u6b21\u8de8\u592a\u5e73\u6d0b\u5f80\u8fd4\u7684\u7db2\u8def\u5ef6\u9072\uff0c\u9060\u9060\u5927\u904e\u672c\u5730 CPU \u548c\u8a18\u61b6\u9ad4\u5c64\u9762\u7684\u512a\u5316\u7a7a\u9593\u3002\n    <\/li>\n<\/ol>\n<p>\n    \u9664\u4e86\u95dc\u806f\u5f0f\u8cc7\u6599\u5eab\uff0cRedis\u3001Memcached \u7b49\u5206\u6563\u5f0f\u5feb\u53d6\u4e5f\u503c\u5f97\u4ed4\u7d30\u6392\u67e5\u3002\u4f86\u81ea\u9060\u7aef\u5feb\u53d6\u53e2\u96c6\u7684\u903e\u6642\uff0c\u5f9e\u7528\u6236\u7aef\u8996\u89d2\u770b\u8d77\u4f86\u548c CPU \u904e\u8f09\u6c92\u4ec0\u9ebc\u5169\u6a23\u3002\u76e1\u91cf\u628a\u5feb\u53d6\u90e8\u7f72\u5728\u9760\u8fd1\u65e5\u672c\u61c9\u7528\u7bc0\u9ede\u7684\u4f4d\u7f6e\uff0c\u76e3\u63a7\u9023\u7dda\u6c60\u98fd\u548c\u60c5\u6cc1\uff0c\u8a2d\u5b9a\u5408\u7406\u56b4\u683c\u7684\u903e\u6642\u6642\u9593\uff0c\u8b93\u5feb\u53d6\u6545\u969c\u53ef\u4ee5\u512a\u96c5\u964d\u7d1a\uff0c\u800c\u4e0d\u662f\u628a\u6574\u500b\u8acb\u6c42\u93c8\u8def\u4e00\u540c\u62d6\u6b7b\u3002\n  <\/p>\n<h2><strong>Web \u4f3a\u670d\u5668\u8abf\u6821\u3001\u9650\u5236\u8207\u4f47\u5217<\/strong><\/h2>\n<p>\n    \u524d\u7aef Web \u4f3a\u670d\u5668\u6216\u53cd\u5411\u4ee3\u7406\uff0c\u662f\u6240\u6709\u8907\u96dc\u7cfb\u7d71\u524d\u9762\u7684\u300c\u9580\u885b\u300d\u3002worker \u6578\u3001\u9023\u7dda\u4e0a\u9650\u8207\u7de9\u885d\u5340\u5927\u5c0f\u914d\u7f6e\u4e0d\u7576\uff0c\u5f80\u5f80\u6703\u8868\u73fe\u70ba\u9023\u7dda\u8b8a\u6162\u6216\u88ab\u4e1f\u68c4\uff0c\u800c OS \u5c64\u9762\u7684 CPU \u6307\u6a19\u537b\u4f9d\u7136\u5e73\u975c\u3002\n  <\/p>\n<ul>\n<li>\n      <strong>worker \u8207\u6838\u5fc3\u6578\u7684\u95dc\u4fc2\uff1a<\/strong>\u5728\u65e5\u672c\u7bc0\u9ede\u4e0a\u7684 Nginx \u7b49\u4ee3\u7406\u4e2d\uff0c\u61c9\u7576\u8b93 worker \u884c\u7a0b\u6578\u8207\u5be6\u9ad4\u6216\u865b\u64ec\u6838\u5fc3\u76f8\u5339\u914d\uff0c\u800c\u4e0d\u662f\u6beb\u7121\u7406\u7531\u5730\u958b\u51fa\u5e7e\u5341\u500b worker\u3002worker \u592a\u591a\u53ea\u6703\u589e\u52a0\u60c5\u5883\u5207\u63db\uff0c\u4e26\u4e0d\u4e00\u5b9a\u6709\u597d\u8655\u3002\n    <\/li>\n<li>\n      <strong>\u9023\u7dda\u4e0a\u9650\uff1a<\/strong>\u8abf\u6821\u55ae\u500b worker \u7684\u6700\u5927\u9023\u7dda\u6578\u3001backlog \u4f47\u5217\u9577\u5ea6\u7b49\u53c3\u6578\uff0c\u8b93\u77ed\u6642\u9593\u6d41\u91cf\u7a81\u767c\u53ef\u4ee5\u88ab\u5e73\u6ed1\u5438\u6536\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u62d2\u7d55\u3002\u8981\u76e3\u63a7\u6709\u591a\u5c11\u9023\u7dda\u88ab\u6392\u968a\u3002\n    <\/li>\n<li>\n      <strong>Keep-Alive \u8207\u903e\u6642\u6642\u9593\uff1a<\/strong>\u5408\u7406\u7684 Keep-Alive \u53ef\u4ee5\u6e1b\u5c11\u9060\u8ddd\u96e2\u7528\u6236\uff08\u8ddd\u96e2\u65e5\u672c\u8f03\u9060\uff09\u53cd\u8986\u63e1\u624b\u7684\u958b\u92b7\uff0c\u4f46\u904e\u9577\u7684\u903e\u6642\u6642\u9593\u6703\u5728\u9592\u7f6e\u9023\u7dda\u4e0a\u9577\u671f\u5360\u7528\u8cc7\u6e90\u3002\u9700\u8981\u6839\u64da\u771f\u5be6\u6d41\u91cf\u5f62\u614b\u505a\u5e73\u8861\u3002\n    <\/li>\n<\/ul>\n<p>\n    \u7576\u4ee3\u7406\u7684\u914d\u7f6e\u8207\u65e5\u672c\u7bc0\u9ede\u5be6\u969b\u627f\u53d7\u7684\u6d41\u91cf\u6a21\u5f0f\u4e0d\u5339\u914d\u6642\uff0c\u8acb\u6c42\u53ef\u80fd\u65e9\u5728\u786c\u9ad4\u771f\u6b63\u5403\u6eff\u4e4b\u524d\uff0c\u5c31\u56e0\u70ba\u6392\u968a\u6216\u89f8\u9054\u5404\u7a2e\u9650\u5236\u800c\u88ab\u62d6\u6162\u3002\u6b64\u6642\uff0c\u76e3\u63a7\u8af8\u5982 accept \u5931\u6557\u6b21\u6578\u3001\u4f47\u5217\u6df1\u5ea6\u3001\u5404 worker \u5229\u7528\u7387\u7b49\u6307\u6a19\uff0c\u5f80\u5f80\u6bd4\u53ea\u76ef\u8457\u7e3d\u9ad4 CPU \u767e\u5206\u6bd4\u66f4\u80fd\u53cd\u6620\u771f\u76f8\u3002\n  <\/p>\n<h2><strong>\u5feb\u53d6\u8207 CDN\uff1a\u5225\u518d\u61f2\u7f70\u4f60\u7684\u6e90\u7ad9<\/strong><\/h2>\n<p>\n    \u8b93\u4f4d\u65bc\u6771\u4eac\u6a5f\u6ac3\u88e1\u7684\u6e90\u7ad9\u7bc0\u9ede\uff0c\u5411\u5168\u4e16\u754c\u7528\u6236\u76f4\u63a5\u63d0\u4f9b\u6240\u6709\u975c\u614b\u8cc7\u6e90\u548c\u9ad8\u5ea6\u53ef\u5feb\u53d6\u7684 API \u56de\u61c9\uff0c\u672c\u8cea\u4e0a\u5c31\u662f\u5728\u81ea\u6211\u88fd\u9020\u9ad8\u5ef6\u9072\u3002\u5373\u4f7f\u672c\u5730 CPU \u5f9e\u672a\u885d\u9ad8\uff0c\u4f60\u4e5f\u5728\u70ba\u672c\u53ef\u5feb\u53d6\u7684\u5de5\u4f5c\u767d\u767d\u6d88\u8017\u983b\u5bec\u3001\u7cfb\u7d71\u547c\u53eb\u548c\u9023\u7dda\u8ffd\u8e64\u80fd\u529b\u3002\n  <\/p>\n<ol>\n<li>\n      \u628a\u975c\u614b\u5167\u5bb9\uff08\u5716\u7247\u3001CSS\u3001JS\u3001\u4e0b\u8f09\u6a94\u6848\u7b49\uff09\u4e0b\u653e\u7d66\u8ddd\u96e2\u4e3b\u8981\u7528\u6236\u7fa4\u66f4\u8fd1\u7684 CDN \u908a\u7de3\u7bc0\u9ede\u3002\u5149\u662f\u9019\u4e00\u6b65\uff0c\u5c31\u80fd\u986f\u8457\u6e1b\u5c11\u65e5\u672c\u6e90\u7ad9\u8def\u5f91\u4e0a\u7684\u8de8\u5883 RTT\u3002\n    <\/li>\n<li>\n      \u6b63\u78ba\u8a2d\u5b9a\u5feb\u53d6\u6a19\u982d\u548c ETag\uff0c\u8b93\u4e2d\u9593\u5feb\u53d6\u80fd\u53ef\u9760\u8907\u7528\u56de\u61c9\u3002\u5982\u679c\u56de\u61c9\u6a19\u982d\u914d\u5f97\u4e0d\u5c0d\uff0c\u5373\u4fbf\u4f60\u90e8\u7f72\u4e86 CDN\uff0c\u6bcf\u500b\u8acb\u6c42\u4ecd\u7136\u6703\u56de\u6e90\u3002\n    <\/li>\n<li>\n      \u70ba\u6602\u8cb4\u67e5\u8a62\u4f7f\u7528\u4f3a\u670d\u7aef\u5feb\u53d6\uff1a\u4f7f\u7528 Redis \u7b49\u5feb\u53d6\u7528\u6236\u8cc7\u6599\u3001\u5546\u54c1\u5217\u8868\u3001\u8a2d\u5b9a\u8cc7\u6599\u7b49\u8b80\u591a\u5beb\u5c11\u7684\u5167\u5bb9\uff0c\u6e1b\u8f15\u65e5\u672c\u6a5f\u623f\u6e90\u7ad9\u8cc7\u6599\u5eab\u7684 I\/O \u58d3\u529b\u3002\n    <\/li>\n<\/ol>\n<p>\n    \u5feb\u53d6\u4e0d\u50c5\u662f\u70ba\u4e86\u8b93\u5716\u8868\u66f4\u597d\u770b\uff0c\u5b83\u6703\u91cd\u5851\u4f60\u7684\u7cfb\u7d71\u62d3\u64b2\u3002\u505a\u5f97\u597d\u7684\u60c5\u6cc1\u4e0b\uff0c\u4e00\u500b\u4e3b\u8981\u8655\u7406\u5feb\u53d6\u672a\u547d\u4e2d\u7684\u7cbe\u7c21\u65e5\u672c\u6e90\u7ad9\u7bc0\u9ede\uff0c\u5728\u7528\u6236\u5074\u7684\u9ad4\u9a57\u53ef\u4ee5\u5feb\u5e7e\u500b\u6578\u91cf\u7d1a\uff0c\u540c\u6642\u6d88\u8017\u7684 CPU \u9031\u671f\u537b\u6bd4\u4e00\u500b\u5feb\u53d6\u505a\u5f97\u5f88\u5dee\u7684\u300c\u5de8\u77f3\u61c9\u7528\u300d\u8981\u5c11\u5f97\u591a\u3002\n  <\/p>\n<h2><strong>\u6838\u5fc3\u8207\u7cfb\u7d71\u53c3\u6578\uff1a\u9810\u8a2d\u503c\u9060\u9060\u4e0d\u5920<\/strong><\/h2>\n<p>\n    \u767c\u884c\u7248\u81ea\u5e36\u7684\u7cfb\u7d71\u6620\u50cf\u6a94\u901a\u5e38\u4f7f\u7528\u975e\u5e38\u4fdd\u5b88\u7684\u9810\u8a2d\u8a2d\u5b9a\uff0c\u5f88\u5c11\u9069\u914d\u771f\u5be6\u7684\u751f\u7522\u8ca0\u8f09\uff0c\u5c24\u5176\u5728\u9ad8\u4f75\u767c\u4f3a\u670d\u5668\u79df\u7528\u5834\u666f\u88e1\u66f4\u662f\u5982\u6b64\u3002\u4e00\u53f0\u4f3a\u670d\u5668\u5f9e CPU \u6307\u6a19\u4f86\u770b\u4f3c\u4e4e\u300c\u4e0d\u5fd9\u300d\uff0c\u537b\u53ef\u80fd\u65e9\u5df2\u88ab\u9023\u7dda\u6578\u91cf\u3001\u6a94\u6848\u63cf\u8ff0\u5143\u6216\u4fdd\u5b88\u7684 TCP \u53c3\u6578\u7d66\u675f\u7e1b\u4f4f\u4e86\u3002\n  <\/p>\n<ul>\n<li>\n      <strong>\u6a94\u6848\u63cf\u8ff0\u5143\uff1a<\/strong>\u5982\u679c\u884c\u7a0b\u89f8\u9054\u4e86\u958b\u555f\u6a94\u6848\u6216 socket \u7684\u4e0a\u9650\uff0c\u5373\u4fbf\u9084\u6709\u7a7a\u9592\u6838\u5fc3\uff0c\u65b0\u9023\u7dda\u4e5f\u53ea\u80fd\u5931\u6557\u6216\u6392\u968a\u3002\u9700\u6839\u64da\u4f75\u767c\u9700\u6c42\u63d0\u9ad8\u7cfb\u7d71\u7d1a\u548c\u884c\u7a0b\u7d1a\u7684 fd \u4e0a\u9650\u3002\n    <\/li>\n<li>\n      <strong>TCP backlog \u8207\u7de9\u885d\u5340\uff1a<\/strong>\u6839\u64da\u696d\u52d9\u60c5\u6cc1\u8abf\u6574 backlog \u4f47\u5217\u9577\u5ea6\u53ca\u7de9\u885d\u5340\u5927\u5c0f\uff0c\u8b93\u77ed\u6642\u9593\u6d41\u91cf\u9ad8\u5cf0\u88ab\u5e73\u6ed1\u8655\u7406\uff0c\u800c\u4e0d\u662f\u5c0e\u81f4 SYN \u88ab\u4e1f\u68c4\u6216\u983b\u7e41\u91cd\u50b3\u3002\n    <\/li>\n<li>\n      <strong>TIME_WAIT \u8655\u7406\uff1a<\/strong>\u5927\u91cf\u77ed\u9023\u7dda\uff08API\u3001\u5fae\u670d\u52d9\u4e4b\u9593\u547c\u53eb\u7b49\uff09\u6703\u7559\u4e0b\u8a31\u591a\u8655\u65bc TIME_WAIT \u72c0\u614b\u7684 socket\uff0c\u7528\u5149\u66ab\u5b58\u9023\u63a5\u57e0\u3002\u66f4\u5408\u7406\u7684\u6838\u5fc3\u7b56\u7565\u53ef\u4ee5\u907f\u514d\u9019\u985e\u300c\u770b\u4e0d\u898b CPU \u5360\u7528\uff0c\u537b\u5230\u8655\u5361\u9813\u300d\u7684\u8a6d\u7570\u73fe\u8c61\u3002\n    <\/li>\n<\/ul>\n<p>\n    \u9019\u4e9b\u8abf\u6574\u90fd\u4e0d\u662f\u300c\u9280\u5f48\u300d\uff0c\u800c\u4e14\u5f9e\u96a8\u6a5f\u535a\u5ba2\u4e0a\u62f7\u8c9d\u4e00\u5806 sysctl \u8a2d\u5b9a\uff0c\u5f80\u5f80\u6bd4\u4e0d\u8abf\u9084\u5371\u96aa\u3002\u6b63\u78ba\u7684\u8def\u5f91\uff0c\u662f\u5148\u5256\u6790\u771f\u5be6\u8ca0\u8f09\uff0c\u518d\u91dd\u5c0d\u6027\u5730\u505a\u7cfb\u7d71\u66f4\u6539\uff0c\u4e26\u7528\u5100\u8868\u677f\u5373\u6642\u5c0d\u6bd4\u8abf\u6574\u524d\u5f8c\u5728\u8acb\u6c42\u5ef6\u9072\u3001\u5931\u6557\u7387\u548c\u4f47\u5217\u6df1\u5ea6\u4e0a\u7684\u8b8a\u5316\u3002\n  <\/p>\n<h2><strong>\u5982\u4f55\u9078\u64c7\u5408\u9069\u7684\u65e5\u672c\u4f3a\u670d\u5668\u79df\u7528\u8207\u4f3a\u670d\u5668\u8a17\u7ba1\u65b9\u6848<\/strong><\/h2>\n<p>\n    \u518d\u8070\u660e\u7684\u8abf\u6821\uff0c\u4e5f\u7121\u6cd5\u5b8c\u5168\u5f4c\u88dc\u786c\u9ad4\u932f\u914d\u6216\u6a5f\u623f\u9078\u64c7\u5931\u8aa4\u7684\u5f8c\u679c\u3002\u7576\u4f60\u9078\u64c7\u4e00\u7a2e\u65e5\u672c\u4f3a\u670d\u5668\u79df\u7528\u6216\u4f3a\u670d\u5668\u8a17\u7ba1\u65b9\u6848\u6642\uff0c\u5176\u5be6\u4e5f\u5728\u540c\u6642\u9078\u64c7\uff1a\u5132\u5b58\u578b\u5225\u3001\u7db2\u8def\u4e0a\u6e38\u3001\u4ea4\u53c9\u4e92\u806f\u65b9\u5f0f\u4ee5\u53ca\u904b\u7dad\u4fdd\u969c\u7b49\u7d1a\uff0c\u9019\u4e9b\u90fd\u6703\u76f4\u63a5\u6c7a\u5b9a\u300c\u5feb\u300d\u5728\u4f60\u7684\u696d\u52d9\u88e1\u7a76\u7adf\u610f\u5473\u8457\u4ec0\u9ebc\u3002\n  <\/p>\n<ul>\n<li>\n      <strong>\u8b93\u78c1\u789f\u548c\u8ca0\u8f09\u76f8\u5339\u914d\uff1a<\/strong>\u5c0d\u5beb\u5165\u983b\u7e41\u7684\u8cc7\u6599\u5eab\u6216\u5373\u6642\u5206\u6790\u696d\u52d9\uff0c\u8981\u5805\u6301\u4f7f\u7528 SSD \u6216 NVMe \u4f5c\u70ba\u5f8c\u7aef\u5132\u5b58\u3002\u628a HDD \u7559\u7d66\u5099\u4efd\u6216\u51b7\u8cc7\u6599\u6b78\u6a94\uff0c\u800c\u4e0d\u662f\u653e\u5728\u7528\u6236\u8acb\u6c42\u7684\u95dc\u9375\u8def\u5f91\u4e0a\u3002\n    <\/li>\n<li>\n      <strong>\u5f04\u6e05\u96fb\u4fe1\u5546\u7d44\u5408\uff1a<\/strong>\u5f04\u6e05\u65e5\u672c\u6a5f\u623f\u63a5\u5165\u4e86\u54ea\u4e9b\u4e0a\u6e38\u96fb\u4fe1\u5546\uff0c\u4ee5\u53ca\u5b83\u5011\u5982\u4f55\u8207\u570b\u5167\u5916\u4f60\u95dc\u5fc3\u7684\u7db2\u8def\u9032\u884c\u4e92\u806f\u3002\u4e0d\u540c\u7684\u96fb\u4fe1\u5546\u7d44\u5408\u6703\u5e36\u4f86\u622a\u7136\u4e0d\u540c\u7684\u5ef6\u9072\u548c\u5c01\u5305\u907a\u5931\u5206\u4f48\u3002\n    <\/li>\n<li>\n      <strong>\u9810\u7559\u8cc7\u6e90\u64f4\u5145\u7a7a\u9593\uff1a<\/strong>\u898f\u5283\u6642\u4e0d\u50c5\u8981\u7559\u51fa vCPU \u7684\u64f4\u5145\u9918\u5730\uff0c\u66f4\u8981\u9810\u7559\u983b\u5bec\u548c\u5132\u5b58\u6548\u80fd\u7684\u6210\u9577\u7a7a\u9593\u3002\u662f\u5426\u80fd\u65b9\u4fbf\u5730\u5347\u7d1a\u8a18\u61b6\u9ad4\u6216\u78c1\u789f IOPS\uff0c\u5f80\u5f80\u6c7a\u5b9a\u4e86\u4f60\u5728\u6d41\u91cf\u66b4\u6f32\u6642\uff0c\u662f\u5f9e\u5bb9\u5347\u7d1a\u9084\u662f\u88ab\u8feb\u300c\u6551\u706b\u300d\u3002\n    <\/li>\n<\/ul>\n<p>\n    \u628a\u57fa\u790e\u8a2d\u65bd\u6c7a\u7b56\u7576\u6210\u4e00\u7b49\u516c\u6c11\u7684\u6548\u80fd\u6c7a\u7b56\u770b\u5f85\u3002\u9078\u64c7\u4e00\u500b\u4ea4\u53c9\u4e92\u806f\u80fd\u529b\u5f37\u3001\u8def\u7531\u5ef6\u9072\u4f4e\u7684\u65e5\u672c\u6a5f\u623f\uff0c\u5e38\u5e38\u6bd4\u5728\u6839\u672c\u504f\u6162\u7684\u57fa\u790e\u8a2d\u65bd\u4e0a\u518d\u5806\u4e00\u5c64\u5feb\u53d6\u3001\u53c8\u52a0\u4e00\u5c64\u5fae\u670d\u52d9\u8981\u66f4\u6709\u6548\u3002\n  <\/p>\n<h2><strong>\u65e5\u672c\u7bc0\u9ede\u300cCPU \u4f4e\u3001\u5ef6\u9072\u9ad8\u300d\u6392\u67e5\u5be6\u7528\u6e05\u55ae<\/strong><\/h2>\n<p>\n    \u70ba\u4e86\u907f\u514d\u300c\u898b\u62db\u62c6\u62db\u5f0f\u300d\u7684\u8abf\u53c3\u548c\u7384\u5b78\u64cd\u4f5c\uff0c\u4e0d\u59a8\u70ba\u65e5\u672c\u7bc0\u9ede\u7684\u300cCPU \u4e0d\u9ad8\u4f46\u5ef6\u9072\u5f88\u9ad8\u300d\u554f\u984c\u6e96\u5099\u4e00\u4efd\u7c21\u660e\u7684 runbook\u3002\u7d71\u4e00\u7684\u8a3a\u65b7\u6d41\u7a0b\u4e0d\u50c5\u80fd\u52a0\u5feb\u6545\u969c\u5b9a\u4f4d\uff0c\u9084\u80fd\u70ba\u672a\u4f86\u7684\u5bb9\u91cf\u898f\u756b\u6c89\u6fb1\u53ef\u91cd\u8907\u4f7f\u7528\u7684\u8cc7\u6599\u3002\n  <\/p>\n<ol>\n<li>\n      <strong>\u5148\u78ba\u8a8d\u7db2\u8def\uff1a<\/strong>\u5f9e\u95dc\u9375\u7528\u6236\u5340\u57df\u4f7f\u7528 <code>ping<\/code> \u548c <code>mtr<\/code> \u6aa2\u67e5 RTT \u548c\u5c01\u5305\u907a\u5931\u60c5\u6cc1\uff0c\u770b\u6548\u80fd\u4e0b\u964d\u662f\u5426\u8207\u5916\u90e8\u7db2\u8def\u72c0\u614b\u4e00\u81f4\u3002\n    <\/li>\n<li>\n      <strong>\u6aa2\u67e5\u78c1\u789f\u8207\u8a18\u61b6\u9ad4\uff1a<\/strong>\u4f7f\u7528 <code>iostat<\/code>\u3001<code>vmstat<\/code> \u4ee5\u53ca swap \u76f8\u95dc\u6307\u6a19\uff0c\u78ba\u8a8d\u662f\u5426\u5b58\u5728 I\/O wait \u98c6\u9ad8\u6216\u96b1\u5f62\u6296\u52d5\uff0c\u4ee5\u53ca\u5132\u5b58\u5ef6\u9072\u662f\u5426\u5728\u300c\u8b8a\u6162\u6642\u6bb5\u300d\u540c\u6b65\u5347\u9ad8\u3002\n    <\/li>\n<li>\n      <strong>\u5256\u6790\u61c9\u7528\uff1a<\/strong>\u53d6\u6a23\u5806\u758a\u3001\u67e5\u770b\u57f7\u884c\u7dd2\u72c0\u614b\u3001\u5206\u6790 APM \u547c\u53eb\u93c8\uff0c\u627e\u51fa\u5e8f\u5217\u5316\u547c\u53eb\u3001\u963b\u585e\u64cd\u4f5c\u6216\u55ae\u57f7\u884c\u7dd2\u71b1\u9ede\u7b49\u61c9\u7528\u5c64\u74f6\u9838\u3002\n    <\/li>\n<li>\n      <strong>\u5206\u6790\u8cc7\u6599\u5eab\uff1a<\/strong>\u62c9\u53d6\u6162\u67e5\u8a62\u65e5\u8a8c\uff0c\u6aa2\u67e5\u7d22\u5f15\u4f7f\u7528\u60c5\u6cc1\uff0c\u78ba\u8a8d\u65e5\u672c\u7bc0\u9ede\u662f\u5426\u5b58\u5728\u5c0d\u8de8\u5340\u57df\u8cc7\u6599\u5eab\u6216\u5feb\u53d6\u7684\u547c\u53eb\u3002\n    <\/li>\n<li>\n      <strong>\u6aa2\u67e5 Web \u8207\u6838\u5fc3\u9650\u5236\uff1a<\/strong>\u78ba\u8a8d backlog\u3001\u6a94\u6848\u63cf\u8ff0\u5143\u3001\u9023\u7dda\u6c60\u7b49\u662f\u5426\u5728\u6084\u6084\u9650\u5236\u541e\u5410\u91cf\uff0c\u800c CPU \u6307\u6a19\u537b\u7d66\u4eba\u4e00\u7a2e\u300c\u9084\u5f88\u9592\u300d\u7684\u932f\u89ba\u3002\n    <\/li>\n<\/ol>\n<p>\n    \u96a8\u8457\u6642\u9593\u63a8\u79fb\uff0c\u4f60\u53ef\u4ee5\u628a\u9019\u4efd\u6e05\u55ae\u7684\u90e8\u5206\u6b65\u9a5f\u81ea\u52d5\u5316\uff1a\u6bd4\u5982\u5c0d RTT \u6ce2\u52d5\u7684\u7570\u5e38\u5075\u6e2c\u3001I\/O wait \u95be\u503c\u544a\u8b66\u3001swap \u6301\u7e8c\u6210\u9577\u9810\u8b66\u3001\u8cc7\u6599\u5eab\u67e5\u8a62\u8017\u6642\u5206\u4f48\u7570\u5e38\u7b49\u3002\u9019\u6a23\uff0c\u4e00\u6b21\u55ae\u9ede\u7684\u300c\u6551\u706b\u6545\u4e8b\u300d\u624d\u80fd\u771f\u6b63\u6c89\u6fb1\u6210\u7a69\u5b9a\u7684\u71df\u904b\u5be6\u52d9\u3002\n  <\/p>\n<h2><strong>\u7d50\u8a9e\uff1a\u8b80\u61c2\u6574\u500b\u7cfb\u7d71\uff0c\u800c\u4e0d\u662f\u53ea\u770b CPU<\/strong><\/h2>\n<p>\n    \u7576\u4e00\u500b\u65e5\u672c\u7bc0\u9ede\u7684\u7528\u6236\u9ad4\u9a57\u660e\u986f\u8b8a\u6162\uff0c\u800c CPU \u5716\u8868\u537b\u6ce2\u703e\u4e0d\u9a5a\u6642\uff0c\u6839\u56e0\u5e7e\u4e4e\u7e3d\u5728\u5225\u8655\uff1a\u8106\u5f31\u7684\u8def\u7531\u3001\u7de9\u6162\u7684\u78c1\u789f\u3001\u7dca\u5f35\u7684\u8a18\u61b6\u9ad4\u3001\u7f3a\u4e4f\u7d22\u5f15\u7684\u67e5\u8a62\u3001\u932f\u914d\u7684\u903e\u6642\u8a2d\u5b9a\u3001\u904e\u65bc\u4fdd\u5b88\u7684\u6838\u5fc3\u9810\u8a2d\u503c\u2026\u2026\u53ea\u76ef\u8457 CPU\uff0c\u5c31\u50cf\u9760\u6a5f\u623f\u98a8\u6247\u7684\u566a\u97f3\u5927\u5c0f\u4f86\u5224\u65b7\u7cfb\u7d71\u72c0\u6cc1\uff1b\u6709\u6642\u80fd\u7d66\u4f60\u4e00\u9ede\u6697\u793a\uff0c\u4f46\u8ddf\u771f\u5be6\u6545\u4e8b\u76f8\u53bb\u751a\u9060\u3002\n  <\/p>\n<p>\n    \u66f4\u63a5\u8fd1\u751f\u7522\u7d1a\u7684\u505a\u6cd5\uff0c\u662f\u628a\u5ef6\u9072\u8996\u4f5c\u6574\u500b\u6280\u8853\u68e7\u7684\u7d9c\u5408\u5c6c\u6027\uff1a\u5f9e\u570b\u969b\u5149\u7e9c\u548c\u6a5f\u623f\u8def\u7531\uff0c\u5230\u78c1\u789f\u97cc\u9ad4\u3001\u6838\u5fc3\u4f47\u5217\u3001\u57f7\u884c\u968e\u6bb5\u884c\u70ba\u3001\u8cc7\u6599\u8868\u7d50\u69cb\uff0c\u90fd\u5728\u5176\u4e2d\u8d77\u4f5c\u7528\u3002\u5982\u679c\u4f60\u628a\u6bcf\u4e00\u53f0\u65e5\u672c\u4f3a\u670d\u5668\u90fd\u7576\u4f5c\u4e00\u500b\u7531\u591a\u91cd\u7d04\u675f\u69cb\u6210\u7684\u7cfb\u7d71\uff0c\u800c\u4e0d\u662f\u4e00\u500b\u7c21\u55ae\u7684 CPU \u767e\u5206\u6bd4\u8b80\u6578\uff0c\u4f60\u5c31\u80fd\u66f4\u5feb\u5730\u627e\u5230\u4e26\u4fee\u5fa9\u771f\u6b63\u7684\u74f6\u9838\uff0c\u66f4\u8070\u660e\u5730\u82b1\u5728\u65e5\u672c\u4f3a\u670d\u5668\u79df\u7528\u8207\u4f3a\u670d\u5668\u8a17\u7ba1\u4e0a\u7684\u9810\u7b97\uff0c\u4e5f\u80fd\u70ba\u7528\u6236\u5e36\u4f86\u660e\u986f\u66f4\u654f\u6377\u7684\u9ad4\u9a57\uff0c\u7528\u8cc7\u6599\u800c\u975e\u731c\u6e2c\uff0c\u70ba\u300c\u65e5\u672c\u4f3a\u670d\u5668\u6548\u80fd\u512a\u5316\u300d\u756b\u4e0a\u4e00\u500b\u9589\u74b0\u3002\n  <\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f60\u6253\u958b Grafana \u6216 htop\uff0c\u770b\u4e86\u4e00\u773c\u65e5\u672c\u7bc0\u9ede\uff1aCPU \u53ea\u6709 15%\uff0c\u8a18\u61b6\u9ad4\u770b\u8d77\u4f86\u4e5f\u5f88\u6b63\u5e38\uff0c\u8ca0\u8f09\u5e73\u5747\u503c [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/diagnosing-slow-japan-servers-with-low-cpu\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":11,"featured_media":36646,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[267],"tags":[],"class_list":["post-36650","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-tc"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u5728 CPU \u4f7f\u7528\u7387\u4e0d\u9ad8\u6642\u8a3a\u65b7\u65e5\u672c\u4f3a\u670d\u5668\u8b8a\u6162\u554f\u984c<\/title>\n<meta name=\"description\" content=\"\u70ba\u4ec0\u9ebc\u4f60\u7684\u65e5\u672c\u4f3a\u670d\u5668 CPU \u4f7f\u7528\u7387\u4e0d\u9ad8\u537b\u4f9d\u7136\u611f\u89ba\u5f88\u6162\uff1f\u9019\u662f\u4e00\u4efd\u7d66\u5de5\u7a0b\u5e2b\u7684\u6df1\u5ea6\u6392\u67e5\u6e05\u55ae\uff0c\u5f9e\u7db2\u8def\u3001I\/O\u3001\u8a18\u61b6\u9ad4\u3001\u8cc7\u6599\u5eab\u5230\u6838\u5fc3\uff0c\u9010\u5c64\u8ffd\u8e64\u5ef6\u9072\u4f86\u6e90\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/diagnosing-slow-japan-servers-with-low-cpu\/\" \/>\n<meta property=\"og:locale\" content=\"zh_TW\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5728 CPU \u4f7f\u7528\u7387\u4e0d\u9ad8\u6642\u8a3a\u65b7\u65e5\u672c\u4f3a\u670d\u5668\u8b8a\u6162\u554f\u984c\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/diagnosing-slow-japan-servers-with-low-cpu\/\" \/>\n<meta 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