{"id":27400,"date":"2024-11-24T19:22:27","date_gmt":"2024-11-24T11:22:27","guid":{"rendered":"https:\/\/fwq.ai\/blog\/?p=27400"},"modified":"2024-11-24T19:22:27","modified_gmt":"2024-11-24T11:22:27","slug":"linux%e4%b8%advmstat%e5%8f%82%e6%95%b0%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/27400\/","title":{"rendered":"Linux\u4e2dvmstat\u53c2\u6570\u8be6\u89e3"},"content":{"rendered":"

\u5e38\u4f7f\u7528\u7684\u547d\u4ee4\uff1a<\/p>\n

\uff03vmstat 1 \u6bcf1\u79d2\u8f93\u51fa\u4e00\u6b21<\/pre>\n
 <\/p>\n
procs \u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014-memory\u2014\u2014\u2014\u2014\u2014\u2014swap\u2014\u2014\u2014io\u2014\u2014- \u2013system\u2014\u2014\u2014-cpu\u2014\u2013
\nr\u00a0\u00a0 b\u00a0\u00a0\u00a0\u00a0 swpd\u00a0\u00a0 free\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 buff\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 cache\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 si\u00a0\u00a0 so\u00a0\u00a0\u00a0\u00a0 bi\u00a0\u00a0\u00a0 bo\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 in\u00a0\u00a0 cs\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 us sy id wa st
\n0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0 4009732\u00a0\u00a0 395568\u00a0\u00a0 1587572\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 726\u00a0 740\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0 1\u00a0 97\u00a0 0\u00a0 0<\/p>\n
r\uff1a\u8fd0\u884c\u961f\u5217\u7684\u503c\uff0c\u5982\u679c\u8fd0\u884c\u961f\u5217\u8fc7\u5927\uff0c\u8868\u793a\u4f60\u7684CPU\u5f88\u7e41\u5fd9\uff0c\u4e00\u822c\u4f1a\u9020\u6210CPU\u4f7f\u7528\u7387\u5f88\u9ad8\u3002\u7ecf\u5e38\u5927\u4e8e1\uff0c\u8868\u793acpu\u4e0d\u8db3\uff0c\u5927\u4e8e3\u8868\u793a\u8d1f\u8f7d\u8fc7\u9ad8\uff0c\u5927\u4e8e5\u8868\u793a\u91cd\u8d1f\u8f7d\uff0c\u5927\u4e8e10\u53ef\u4ee5\u8ba4\u5b9a\u4e3a\u4e0d\u6b63\u5e38\u4e86\u3002<\/p>\n
b\uff1a\u7b49\u5f85\u8d44\u6e90\u7684\u8fdb\u7a0b\u6570\uff08\u6216\u8005\u8bf4\u963b\u585e\u7684\u8fdb\u7a0b\u6570\uff09\uff0c\u4e00\u822c\u8868\u73b0\u4e3aI\/0\u74f6\u9888\uff0c\u4e5f\u6709\u53ef\u80fd\u662f\u5185\u5b58\u4ea4\u6362\u7b49\u3002<\/p>\n
swpd\uff1a\u5207\u6362\u5230\u5185\u5b58\u4ea4\u6362\u533a\u7684\u5185\u5b58\u6570\u91cf(k\u8868\u793a)\u3002\u5982\u679cswpd\u7684\u503c\u4e0d\u4e3a0\uff0c\u6216\u8005\u6bd4\u8f83\u5927\uff0c\u6bd4\u5982\u8d85\u8fc7\u4e86100m\uff0c\u53ea\u8981si\u3001so\u7684\u503c\u957f\u671f\u4e3a0\uff0c\u7cfb\u7edf\u6027\u80fd\u8fd8\u662f\u6b63\u5e38.<\/p>\n
free\uff1a\u5f53\u524d\u7684\u7a7a\u95f2\u9875\u9762\u5217\u8868\u4e2d\u5185\u5b58\u6570\u91cf(k\u8868\u793a)<\/p>\n
buff\uff1a\u4f5c\u4e3abuffer cache\u7684\u5185\u5b58\u6570\u91cf\uff0c\u4e00\u822c\u5bf9\u5757\u8bbe\u5907\u7684\u8bfb\u5199\u624d\u9700\u8981\u7f13\u51b2\u3002<\/p>\n
cache: \u4f5c\u4e3apage cache\u7684\u5185\u5b58\u6570\u91cf\uff0c\u4e00\u822c\u4f5c\u4e3a\u6587\u4ef6\u7cfb\u7edf\u7684cache\uff0c\u5982\u679ccache\u8f83\u5927\uff0c\u8bf4\u660e\u7528\u5230cache\u7684\u6587\u4ef6\u8f83\u591a\uff0c\u5982\u679c\u6b64\u65f6IO\u4e2dbi\u6bd4\u8f83\u5c0f\uff0c\u8bf4\u660e\u6587\u4ef6\u7cfb\u7edf\u6548\u7387\u6bd4\u8f83\u597d\u3002<\/p>\n
si\uff1a\u7531\u5185\u5b58\u8fdb\u5165\u5185\u5b58\u4ea4\u6362\u533a\u6570\u91cf\u3002(\u5355\u8bcdin)\uff0c\u8be5\u503c\u548cmemory\u4e2d\u7684swpd\u76f8\u5173<\/p>\n
so\uff1a\u7531\u5185\u5b58\u4ea4\u6362\u533a\u8fdb\u5165\u5185\u5b58\u6570\u91cf\u3002(\u5355\u8bcd out)\uff0c\u8be5\u503c\u548cmemory\u4e2d\u7684swpd\u76f8\u5173<\/p>\n
bi \u4ece\u5757\u8bbe\u5907\u8bfb\u5165\u6570\u636e\u7684\u603b\u91cf\uff08\u8bfb\u78c1\u76d8\uff09\uff08\u6bcf\u79d2kb\uff09\u3002<\/p>\n
bo \u5757\u8bbe\u5907\u5199\u5165\u6570\u636e\u7684\u603b\u91cf\uff08\u5199\u78c1\u76d8\uff09\uff08\u6bcf\u79d2kb\uff09<\/p>\n
in\uff1a\u5217\u8868\u793a\u5728\u67d0\u4e00\u65f6\u95f4\u95f4\u9694\u4e2d\u89c2\u6d4b\u5230\u7684\u6bcf\u79d2\u8bbe\u5907\u4e2d\u65ad\u6570\u3002<\/p>\n
cs\uff1a\u6bcf\u79d2\u4e0a\u4e0b\u6587\u5207\u6362\u6b21\u6570\uff0c\u4f8b\u5982\u6211\u4eec\u8c03\u7528\u7cfb\u7edf\u51fd\u6570\uff0c\u5c31\u8981\u8fdb\u884c\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u7ebf\u7a0b\u7684\u5207\u6362\uff0c\u4e5f\u8981\u8fdb\u7a0b\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u8fd9\u4e2a\u503c\u8981\u8d8a\u5c0f\u8d8a\u597d\uff0c\u592a\u5927\u4e86\uff0c\u8981\u8003\u8651\u8c03\u4f4e\u7ebf\u7a0b\u6216\u8005\u8fdb\u7a0b\u7684\u6570\u76ee,\u4f8b\u5982\u5728apache\u548cnginx\u8fd9\u79cdweb\u670d\u52a1\u5668\u4e2d\uff0c\u6211\u4eec\u4e00\u822c\u505a\u6027\u80fd\u6d4b\u8bd5\u65f6\u4f1a\u8fdb\u884c\u51e0\u5343\u5e76\u53d1\u751a\u81f3\u51e0\u4e07\u5e76\u53d1\u7684\u6d4b\u8bd5\uff0c\u9009\u62e9web\u670d\u52a1\u5668\u7684\u8fdb\u7a0b\u53ef\u4ee5\u7531\u8fdb\u7a0b\u6216\u8005\u7ebf\u7a0b\u7684\u5cf0\u503c\u4e00\u76f4\u4e0b\u8c03\uff0c\u538b\u6d4b\uff0c\u76f4\u5230cs\u5230\u4e00\u4e2a\u6bd4\u8f83\u5c0f\u7684\u503c\uff0c\u8fd9\u4e2a\u8fdb\u7a0b\u548c\u7ebf\u7a0b\u6570\u5c31\u662f\u6bd4\u8f83\u5408\u9002\u7684\u503c\u4e86\u3002\u7cfb\u7edf\u8c03\u7528\u4e5f\u662f\uff0c\u6bcf\u6b21\u8c03\u7528\u7cfb\u7edf\u51fd\u6570\uff0c\u6211\u4eec\u7684\u4ee3\u7801\u5c31\u4f1a\u8fdb\u5165\u5185\u6838\u7a7a\u95f4\uff0c\u5bfc\u81f4\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u8fd9\u4e2a\u662f\u5f88\u8017\u8d44\u6e90\uff0c\u4e5f\u8981\u5c3d\u91cf\u907f\u514d\u9891\u7e41\u8c03\u7528\u7cfb\u7edf\u51fd\u6570\u3002\u4e0a\u4e0b\u6587\u5207\u6362\u6b21\u6570\u8fc7\u591a\u8868\u793a\u4f60\u7684CPU\u5927\u90e8\u5206\u6d6a\u8d39\u5728\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u5bfc\u81f4CPU\u5e72\u6b63\u7ecf\u4e8b\u7684\u65f6\u95f4\u5c11\u4e86\uff0cCPU\u6ca1\u6709\u5145\u5206\u5229\u7528\uff0c\u662f\u4e0d\u53ef\u53d6\u7684\u3002<\/p>\n
us\uff1a\u5217\u663e\u793a\u4e86\u7528\u6237\u65b9\u5f0f\u4e0b\u6240\u82b1\u8d39 CPU \u65f6\u95f4\u7684\u767e\u5206\u6bd4\u3002us\u7684\u503c\u6bd4\u8f83\u9ad8\u65f6\uff0c\u8bf4\u660e\u7528\u6237\u8fdb\u7a0b\u6d88\u8017\u7684cpu\u65f6\u95f4\u591a\uff0c\u4f46\u662f\u5982\u679c\u957f\u671f\u5927\u4e8e50%\uff0c\u9700\u8981\u8003\u8651\u4f18\u5316\u7528\u6237\u7684\u7a0b\u5e8f\u3002
\n\u7528\u6237CPU\u65f6\u95f4\uff0c\u6211\u66fe\u7ecf\u5728\u4e00\u4e2a\u505a\u52a0\u5bc6\u89e3\u5bc6\u5f88\u9891\u7e41\u7684\u670d\u52a1\u5668\u4e0a\uff0c\u53ef\u4ee5\u770b\u5230us\u63a5\u8fd1100,r\u8fd0\u884c\u961f\u5217\u8fbe\u523080(\u673a\u5668\u5728\u505a\u538b\u529b\u6d4b\u8bd5\uff0c\u6027\u80fd\u8868\u73b0\u4e0d\u4f73)\u3002<\/p>\n
sy\uff1a\u5217\u663e\u793a\u4e86\u5185\u6838\u8fdb\u7a0b\u6240\u82b1\u8d39\u7684cpu\u65f6\u95f4\u7684\u767e\u5206\u6bd4\u3002\u8fd9\u91ccus + sy\u7684\u53c2\u8003\u503c\u4e3a80%\uff0c\u5982\u679cus+sy \u5927\u4e8e 80%\u8bf4\u660e\u53ef\u80fd\u5b58\u5728CPU\u4e0d\u8db3\u3002\u7cfb\u7edfCPU\u65f6\u95f4\uff0c\u5982\u679c\u592a\u9ad8\uff0c\u8868\u793a\u7cfb\u7edf\u8c03\u7528\u65f6\u95f4\u957f\uff0c\u4f8b\u5982\u662fIO\u64cd\u4f5c\u9891\u7e41\u3002<\/p>\n
id \uff1a\u7a7a\u95f2 CPU\u65f6\u95f4\uff0c\u4e00\u822c\u6765\u8bf4\uff0cid + us + sy = 100,\u4e00\u822c\u6211\u8ba4\u4e3aid\u662f\u7a7a\u95f2CPU\u4f7f\u7528\u7387\uff0cus\u662f\u7528\u6237CPU\u4f7f\u7528\u7387\uff0csy\u662f\u7cfb\u7edfCPU\u4f7f\u7528\u7387\u3002<\/p>\n
wa\uff1a\u5217\u663e\u793a\u4e86IO\u7b49\u5f85\u6240\u5360\u7528\u7684CPU\u65f6\u95f4\u7684\u767e\u5206\u6bd4\u3002\u8fd9\u91ccwa\u7684\u53c2\u8003\u503c\u4e3a30%\uff0c\u5982\u679cwa\u8d85\u8fc730%\uff0c\u8bf4\u660eIO\u7b49\u5f85\u4e25\u91cd\uff0c\u8fd9\u53ef\u80fd\u662f\u78c1\u76d8\u5927\u91cf\u968f\u673a\u8bbf\u95ee\u9020\u6210\u7684\uff0c\u4e5f\u53ef\u80fd\u78c1\u76d8\u6216\u8005\u78c1\u76d8\u8bbf\u95ee\u63a7\u5236\u5668\u7684\u5e26\u5bbd\u74f6\u9888\u9020\u6210\u7684(\u4e3b\u8981\u662f\u5757\u64cd\u4f5c)\u3002\u7b49\u5f85IO CPU\u65f6\u95f4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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