{"id":52020,"date":"2024-12-03T13:52:57","date_gmt":"2024-12-03T05:52:57","guid":{"rendered":"https:\/\/fwq.ai\/blog\/52020\/"},"modified":"2024-12-03T13:52:57","modified_gmt":"2024-12-03T05:52:57","slug":"%e6%a3%80%e6%9f%a5linux%e6%80%a7%e8%83%bd%e7%9a%84%e5%91%bd%e4%bb%a4%e6%98%af%e4%bb%80%e4%b9%88","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/52020\/","title":{"rendered":"\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48"},"content":{"rendered":"

<\/b> <\/p>\n

\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48<\/h1>\n

\u6b22\u8fce\u5404\u4f4d\u5c0f\u4f19\u4f34\u6765\u5230\u7c73\u4e91\uff0c\u76f8\u805a\u4e8e\u6b64\u90fd\u662f\u7f18\u54c8\u54c8\u54c8\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\u975e\u5e38\u611f\u5174\u8da3\u6216\u8005\u6b63\u5728\u81ea\u5b66\uff0c\u90fd\u53ef\u4ee5\u5173\u6ce8\u6211\uff0c\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\uff01\u5f53\u7136\uff0c\u6709\u4ec0\u4e48\u5efa\u8bae\u4e5f\u6b22\u8fce\u5728\u8bc4\u8bba\u7559\u8a00\u63d0\u51fa\uff01\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n

1.uptime<\/p>\n

\"\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48\u63d2\u56fe\"<\/p>\n

\u8fd9\u4e2a\u547d\u4ee4\u53ef\u4ee5\u5feb\u901f\u67e5\u770b\u673a\u5668\u7684\u8d1f\u8f7d\u60c5\u51b5\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u8fd9\u4e9b\u6570\u636e\u8868\u793a\u7b49\u5f85CPU\u8d44\u6e90\u7684\u8fdb\u7a0b\u548c\u963b\u585e\u5728\u4e0d\u53ef\u4e2d\u65adIO\u8fdb\u7a0b\uff08\u8fdb\u7a0b\u72b6\u6001\u4e3aD\uff09\u7684\u6570\u91cf\u3002\u8fd9\u4e9b\u6570\u636e\u53ef\u4ee5\u8ba9\u6211\u4eec\u5bf9\u7cfb\u7edf\u8d44\u6e90\u4f7f\u7528\u6709\u4e00\u4e2a\u5b8f\u89c2\u7684\u4e86\u89e3\u3002<\/p>\n

\u547d\u4ee4\u7684\u8f93\u51fa\u5206\u522b\u8868\u793a1\u5206\u949f\u30015\u5206\u949f\u300115\u5206\u949f\u7684\u5e73\u5747\u8d1f\u8f7d\u60c5\u51b5\u3002\u901a\u8fc7\u8fd9\u4e09\u4e2a\u6570\u636e\uff0c\u53ef\u4ee5\u4e86\u89e3\u670d\u52a1\u5668\u8d1f\u8f7d\u662f\u5728\u8d8b\u4e8e\u7d27\u5f20\u8fd8\u662f\u533a\u57df\u7f13\u89e3\u3002\u5982\u679c1\u5206\u949f\u5e73\u5747\u8d1f\u8f7d\u5f88\u9ad8\uff0c\u800c15\u5206\u949f\u5e73\u5747\u8d1f\u8f7d\u5f88\u4f4e\uff0c\u8bf4\u660e\u670d\u52a1\u5668\u6b63\u5728\u547d\u4ee4\u9ad8\u8d1f\u8f7d\u60c5\u51b5\uff0c\u9700\u8981\u8fdb\u4e00\u6b65\u6392\u67e5CPU\u8d44\u6e90\u90fd\u6d88\u8017\u5728\u4e86\u54ea\u91cc\u3002\u53cd\u4e4b\uff0c\u5982\u679c15\u5206\u949f\u5e73\u5747\u8d1f\u8f7d\u5f88\u9ad8\uff0c1\u5206\u949f\u5e73\u5747\u8d1f\u8f7d\u8f83\u4f4e\uff0c\u5219\u6709\u53ef\u80fd\u662fCPU\u8d44\u6e90\u7d27\u5f20\u65f6\u523b\u5df2\u7ecf\u8fc7\u53bb\u3002\u5982\u679c\u8fd11\u5206\u949f\u7684\u5e73\u5747\u8d1f\u8f7d\u8fdc\u9ad8\u4e8e15\u5206\u949f\u7684\u8d1f\u8f7d\u60c5\u51b5,\u90a3\u4e48\u6211\u4eec\u9700\u8981\u7528vmstat,mpstat\u547d\u4ee4\u8fdb\u884c\u6392\u67e5\u3002<\/p>\n

2.dmesg|tail<\/p>\n

\"\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48\u63d2\u56fe1\"<\/p>\n

dmesg\u8fd9\u6761\u547d\u4ee4\u7528\u4e8e\u67e5\u770b\u5f00\u673a\u4fe1\u606f<\/p>\n

dmesg|tail\u8be5\u547d\u4ee4\u4f1a\u8f93\u51fa\u7cfb\u7edf\u65e5\u5fd7\u7684\u6700\u540e10\u884c<\/p>\n

3.vmstat1<\/p>\n

\"\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48\u63d2\u56fe2\"<\/p>\n

\u6bcf\u884c\u4f1a\u8f93\u51fa\u4e00\u4e9b\u7cfb\u7edf\u6838\u5fc3\u6307\u6807\uff0c\u8fd9\u4e9b\u6307\u6807\u53ef\u4ee5\u8ba9\u6211\u4eec\u66f4\u8be6\u7ec6\u7684\u4e86\u89e3\u7cfb\u7edf\u72b6\u6001\u3002\u540e\u9762\u8ddf\u7684\u53c2\u65702\uff0c\u8868\u793a\u6bcf\u4e24\u79d2\u8f93\u51fa\u4e00\u6b21\u7edf\u8ba1\u4fe1\u606f\uff0c\u8868\u5934\u63d0\u793a\u4e86\u6bcf\u4e00\u5217\u7684\u542b\u4e49\uff0c\u8fd9\u51e0\u4ecb\u7ecd\u4e00\u4e9b\u548c\u6027\u80fd\u8c03\u4f18\u76f8\u5173\u7684\u5217\uff1a<\/p>\n

r\uff1a\u7b49\u5f85\u5728CPU\u8d44\u6e90\u7684\u8fdb\u7a0b\u6570\u3002\u8fd9\u4e2a\u6570\u636e\u6bd4\u5e73\u5747\u8d1f\u8f7d\u66f4\u52a0\u80fd\u591f\u4f53\u73b0CPU\u8d1f\u8f7d\u60c5\u51b5\uff0c\u6570\u636e\u4e2d\u4e0d\u5305\u542b\u7b49\u5f85IO\u7684\u8fdb\u7a0b\u3002\u5982\u679c\u8fd9\u4e2a\u6570\u503c\u5927\u4e8e\u673a\u5668CPU\u6838\u6570\uff0c\u90a3\u4e48\u673a\u5668\u7684CPU\u8d44\u6e90\u5df2\u7ecf\u9971\u548c\u3002<\/p>\n

free\uff1a\u7cfb\u7edf\u53ef\u7528\u5185\u5b58\u6570\uff08\u4ee5\u5343\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5982\u679c\u5269\u4f59\u5185\u5b58\u4e0d\u8db3\uff0c\u4e5f\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u6027\u80fd\u95ee\u9898\u3002\u4e0b\u6587\u4ecb\u7ecd\u5230\u7684free\u547d\u4ee4\uff0c\u53ef\u4ee5\u66f4\u8be6\u7ec6\u7684\u4e86\u89e3\u7cfb\u7edf\u5185\u5b58\u7684\u4f7f\u7528\u60c5\u51b5\u3002<\/p>\n

si,so\uff1a\u4ea4\u6362\u533a\u5199\u5165\u548c\u8bfb\u53d6\u7684\u6570\u91cf\u3002\u5982\u679c\u8fd9\u4e2a\u6570\u636e\u4e0d\u4e3a0\uff0c\u8bf4\u660e\u7cfb\u7edf\u5df2\u7ecf\u5728\u4f7f\u7528\u4ea4\u6362\u533a\uff08swap\uff09\uff0c\u673a\u5668\u7269\u7406\u5185\u5b58\u5df2\u7ecf\u4e0d\u8db3\u3002<\/p>\n

us,sy,id,wa,st\uff1a\u8fd9\u4e9b\u90fd\u4ee3\u8868\u4e86CPU\u65f6\u95f4\u7684\u6d88\u8017\uff0c\u5b83\u4eec\u5206\u522b\u8868\u793a\u7528\u6237\u65f6\u95f4\uff08user\uff09\u3001\u7cfb\u7edf\uff08\u5185\u6838\uff09\u65f6\u95f4\uff08sys\uff09\u3001\u7a7a\u95f2\u65f6\u95f4\uff08idle\uff09\u3001IO\u7b49\u5f85\u65f6\u95f4\uff08wait\uff09\u548c\u88ab\u5077\u8d70\u7684\u65f6\u95f4\uff08stolen\uff0c\u4e00\u822c\u88ab\u5176\u4ed6\u865a\u62df\u673a\u6d88\u8017\uff09\u3002<\/p>\n

\u4e0a\u8ff0\u8fd9\u4e9bCPU\u65f6\u95f4\uff0c\u53ef\u4ee5\u8ba9\u6211\u4eec\u5f88\u5feb\u4e86\u89e3CPU\u662f\u5426\u51fa\u4e8e\u7e41\u5fd9\u72b6\u6001\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u7528\u6237\u65f6\u95f4\u548c\u7cfb\u7edf\u65f6\u95f4\u76f8\u52a0\u975e\u5e38\u5927\uff0cCPU\u51fa\u4e8e\u5fd9\u4e8e\u6267\u884c\u6307\u4ee4\u3002\u5982\u679cIO\u7b49\u5f85\u65f6\u95f4\u5f88\u957f\uff0c\u90a3\u4e48\u7cfb\u7edf\u7684\u74f6\u9888\u53ef\u80fd\u5728\u78c1\u76d8IO\u3002<\/p>\n

4.mpstat-PALL1<\/p>\n

\"\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48\u63d2\u56fe3\"<\/p>\n

\u8be5\u547d\u4ee4\u53ef\u4ee5\u663e\u793a\u6bcf\u4e2aCPU\u7684\u5360\u7528\u60c5\u51b5\uff0c\u5982\u679c\u6709\u4e00\u4e2aCPU\u5360\u7528\u7387\u7279\u522b\u9ad8\uff0c\u90a3\u4e48\u6709\u53ef\u80fd\u662f\u4e00\u4e2a\u5355\u7ebf\u7a0b\u5e94\u7528\u7a0b\u5e8f\u5f15\u8d77\u7684\u3002<\/p>\n

5.pidstat1<\/p>\n

\"\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48\u63d2\u56fe4\"<\/p>\n

pidstat\u547d\u4ee4\u8f93\u51fa\u8fdb\u7a0b\u7684CPU\u5360\u7528\u7387\uff0c\u8be5\u547d\u4ee4\u4f1a\u6301\u7eed\u8f93\u51fa\uff0c\u5e76\u4e14\u4e0d\u4f1a\u8986\u76d6\u4e4b\u524d\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u65b9\u4fbf\u89c2\u5bdf\u7cfb\u7edf\u52a8\u6001\u3002<\/p>\n

6.iostat-xz1<\/p>\n

\"\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48\u63d2\u56fe5\"<\/p>\n

iostat\u547d\u4ee4\u4e3b\u8981\u7528\u4e8e\u67e5\u770b\u673a\u5668\u78c1\u76d8IO\u60c5\u51b5\u3002\u8be5\u547d\u4ee4\u8f93\u51fa\u7684\u5217\uff0c\u4e3b\u8981\u542b\u4e49\u662f\uff1a<\/p>\n

r\/s,w\/s,rkB\/s,wkB\/s\uff1a\u5206\u522b\u8868\u793a\u6bcf\u79d2\u8bfb\u5199\u6b21\u6570\u548c\u6bcf\u79d2\u8bfb\u5199\u6570\u636e\u91cf\uff08\u5343\u5b57\u8282\uff09\u3002\u8bfb\u5199\u91cf\u8fc7\u5927\uff0c\u53ef\u80fd\u4f1a\u5f15\u8d77\u6027\u80fd\u95ee\u9898\u3002<\/p>\n

await\uff1aIO\u64cd\u4f5c\u7684\u5e73\u5747\u7b49\u5f85\u65f6\u95f4\uff0c\u5355\u4f4d\u662f\u6beb\u79d2\u3002\u8fd9\u662f\u5e94\u7528\u7a0b\u5e8f\u5728\u548c\u78c1\u76d8\u4ea4\u4e92\u65f6\uff0c\u9700\u8981\u6d88\u8017\u7684\u65f6\u95f4\uff0c\u5305\u62ecIO\u7b49\u5f85\u548c\u5b9e\u9645\u64cd\u4f5c\u7684\u8017\u65f6\u3002\u5982\u679c\u8fd9\u4e2a\u6570\u503c\u8fc7\u5927\uff0c\u53ef\u80fd\u662f\u786c\u4ef6\u8bbe\u5907\u9047\u5230\u4e86\u74f6\u9888\u6216\u8005\u51fa\u73b0\u6545\u969c\u3002<\/p>\n

avgqu-sz\uff1a\u5411\u8bbe\u5907\u53d1\u51fa\u7684\u8bf7\u6c42\u5e73\u5747\u6570\u91cf\u3002\u5982\u679c\u8fd9\u4e2a\u6570\u503c\u5927\u4e8e1\uff0c\u53ef\u80fd\u662f\u786c\u4ef6\u8bbe\u5907\u5df2\u7ecf\u9971\u548c\uff08\u90e8\u5206\u524d\u7aef\u786c\u4ef6\u8bbe\u5907\u652f\u6301\u5e76\u884c\u5199\u5165\uff09\u3002<\/p>\n

%util\uff1a\u8bbe\u5907\u5229\u7528\u7387\u3002\u8fd9\u4e2a\u6570\u503c\u8868\u793a\u8bbe\u5907\u7684\u7e41\u5fd9\u7a0b\u5ea6\uff0c\u7ecf\u9a8c\u503c\u662f\u5982\u679c\u8d85\u8fc760\uff0c\u53ef\u80fd\u4f1a\u5f71\u54cdIO\u6027\u80fd\uff08\u53ef\u4ee5\u53c2\u7167IO\u64cd\u4f5c\u5e73\u5747\u7b49\u5f85\u65f6\u95f4\uff09\u3002\u5982\u679c\u5230\u8fbe100%\uff0c\u8bf4\u660e\u786c\u4ef6\u8bbe\u5907\u5df2\u7ecf\u9971\u548c\u3002<\/p>\n

\u5982\u679c\u663e\u793a\u7684\u662f\u903b\u8f91\u8bbe\u5907\u7684\u6570\u636e\uff0c\u90a3\u4e48\u8bbe\u5907\u5229\u7528\u7387\u4e0d\u4ee3\u8868\u540e\u7aef\u5b9e\u9645\u7684\u786c\u4ef6\u8bbe\u5907\u5df2\u7ecf\u9971\u548c\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5373\u4f7fIO\u6027\u80fd\u4e0d\u7406\u60f3\uff0c\u4e5f\u4e0d\u4e00\u5b9a\u610f\u5473\u8fd9\u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u4f1a\u4e0d\u597d\uff0c\u53ef\u4ee5\u5229\u7528\u8bf8\u5982\u9884\u8bfb\u53d6\u3001\u5199\u7f13\u5b58\u7b49\u7b56\u7565\u63d0\u5347\u5e94\u7528\u6027\u80fd\u3002<\/p>\n

7.free-h<\/p>\n

\"\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48\u63d2\u56fe6\"<\/p>\n

free\u547d\u4ee4\u53ef\u7528\u4e8e\u67e5\u770b\u7cfb\u7edf\u5185\u5b58\u7684\u4f7f\u7528\u60c5\u51b5,\u6700\u540e\u4e24\u5217\u5206\u522b\u8868\u793a\u7528\u4e8eIO\u7f13\u5b58\u7684\u5185\u5b58\u6570\uff0c\u548c\u7528\u4e8e\u6587\u4ef6\u7cfb\u7edf\u9875\u7f13\u5b58\u7684\u5185\u5b58\u6570\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u7b2c\u4e8c\u884c-\/+buffers\/cache\uff0c\u770b\u4e0a\u53bb\u7f13\u5b58\u5360\u7528\u4e86\u5927\u91cf\u5185\u5b58\u7a7a\u95f4\u3002\u8fd9\u662fLinux\u7cfb\u7edf\u7684\u5185\u5b58\u4f7f\u7528\u7b56\u7565\uff0c\u5c3d\u53ef\u80fd\u7684\u5229\u7528\u5185\u5b58\uff0c\u5982\u679c\u5e94\u7528\u7a0b\u5e8f\u9700\u8981\u5185\u5b58\uff0c\u8fd9\u90e8\u5206\u5185\u5b58\u4f1a\u7acb\u5373\u88ab\u56de\u6536\u5e76\u5206\u914d\u7ed9\u5e94\u7528\u7a0b\u5e8f\u3002\u56e0\u6b64\uff0c\u8fd9\u90e8\u5206\u5185\u5b58\u4e00\u822c\u4e5f\u88ab\u5f53\u6210\u662f\u53ef\u7528\u5185\u5b58\u3002<\/p>\n

\u5982\u679c\u53ef\u7528\u5185\u5b58\u975e\u5e38\u5c11\uff0c\u7cfb\u7edf\u53ef\u80fd\u4f1a\u52a8\u7528\u4ea4\u6362\u533a\uff08\u5982\u679c\u914d\u7f6e\u4e86\u7684\u8bdd\uff09\uff0c\u8fd9\u6837\u4f1a\u589e\u52a0IO\u5f00\u9500\uff08\u53ef\u4ee5\u5728iostat\u547d\u4ee4\u4e2d\u63d0\u73b0\uff09\uff0c\u964d\u4f4e\u7cfb\u7edf\u6027\u80fd\u3002<\/p>\n

8.sar-nDEV1<\/p>\n

\"\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48\u63d2\u56fe7\"<\/p>\n

sar\u547d\u4ee4\u5728\u8fd9\u91cc\u53ef\u4ee5\u67e5\u770b\u7f51\u7edc\u8bbe\u5907\u7684\u541e\u5410\u7387\u3002\u5728\u6392\u67e5\u6027\u80fd\u95ee\u9898\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u7f51\u7edc\u8bbe\u5907\u7684\u541e\u5410\u91cf\uff0c\u5224\u65ad\u7f51\u7edc\u8bbe\u5907\u662f\u5426\u5df2\u7ecf\u9971\u548c\u3002\u5982\u793a\u4f8b\u8f93\u51fa\u4e2d\uff0ceth0\u7f51\u5361\u8bbe\u5907\uff0c\u541e\u5410\u7387\u53ea\u6709\u5927\u6982\u57280.39Mbytes\/s.<\/p>\n

9.sar-nTCP,ETCP1<\/p>\n

\"\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48\u63d2\u56fe8\"<\/p>\n

sar\u547d\u4ee4\u5728\u8fd9\u91cc\u7528\u4e8e\u67e5\u770bTCP\u8fde\u63a5\u72b6\u6001\uff0c\u5176\u4e2d\u5305\u62ec\uff1a<\/p>\n

active\/s\uff1a\u6bcf\u79d2\u672c\u5730\u53d1\u8d77\u7684TCP\u8fde\u63a5\u6570\uff0c\u65e2\u901a\u8fc7connect\u8c03\u7528\u521b\u5efa\u7684TCP\u8fde\u63a5\uff1b<\/p>\n

passive\/s\uff1a\u6bcf\u79d2\u8fdc\u7a0b\u53d1\u8d77\u7684TCP\u8fde\u63a5\u6570\uff0c\u5373\u901a\u8fc7accept\u8c03\u7528\u521b\u5efa\u7684TCP\u8fde\u63a5\uff1b<\/p>\n

retrans\/s\uff1a\u6bcf\u79d2TCP\u91cd\u4f20\u6570\u91cf\uff1b<\/p>\n

TCP\u8fde\u63a5\u6570\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u6027\u80fd\u95ee\u9898\u662f\u5426\u7531\u4e8e\u5efa\u7acb\u4e86\u8fc7\u591a\u7684\u8fde\u63a5\uff0c\u8fdb\u4e00\u6b65\u53ef\u4ee5\u5224\u65ad\u662f\u4e3b\u52a8\u53d1\u8d77\u7684\u8fde\u63a5\uff0c\u8fd8\u662f\u88ab\u52a8\u63a5\u53d7\u7684\u8fde\u63a5\u3002TCP\u91cd\u4f20\u53ef\u80fd\u662f\u56e0\u4e3a\u7f51\u7edc\u73af\u5883\u6076\u52a3\uff0c\u6216\u8005\u670d\u52a1\u5668\u538b\u529b\u8fc7\u5927\u5bfc\u81f4\u4e22\u5305\u3002<\/p>\n

10.top<\/p>\n

\"\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48\u63d2\u56fe9\"<\/p>\n

\u7b2c\u4e00\u884c\u662f\u4efb\u52a1\u961f\u5217\u4fe1\u606f\uff0c\u540cuptime\u547d\u4ee4\u7684\u6267\u884c\u7ed3\u679c\u4e00\u6837\uff1a\u7b2c\u4e00\u5217\u8868\u793a\u5f53\u524d\u65f6\u95f4\u3001\u7b2c\u4e8c\u5217\u8868\u793a\u7cfb\u7edf\u8fd0\u884c\u4e86\u591a\u4e45\u3001\u7b2c\u4e09\u5217\u8868\u793a\u5f53\u524d\u767b\u9646\u4eba\u6570\u3001\u6700\u540e\u7684loadaverage\u8868\u793a\u7684\u662f\u7cfb\u7edf\u8d1f\u8f7d(\u4e09\u4e2a\u503c\u5206\u522b\u662f:1\u5206\u949f\u30015\u5206\u949f\u300115\u5206\u949f\u524d\u5230\u73b0\u5728\u7684\u8d1f\u8f7d\u5e73\u5747\u503c)<\/p>\n

\u7b2c\u4e8c\u5217\u8868\u793a\u7684\u662f\u8fdb\u7a0b\u7684\u4fe1\u606f\uff0c\u5f88\u76f4\u89c2\u3002<\/p>\n

\u4eca\u5929\u5173\u4e8e\u300a\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u7c73\u4e91\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48 \u6b22\u8fce\u5404\u4f4d\u5c0f\u4f19\u4f34\u6765\u5230\u7c73\u4e91\uff0c\u76f8\u805a\u4e8e\u6b64\u90fd\u662f\u7f18\u54c8\u54c8\u54c8\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u68c0\u67e5Linux\u6027\u80fd\u7684\u547d\u4ee4\u662f\u4ec0\u4e48\u300b\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0\u76f8\u5173\u7684\u77e5\u8bc6\u975e\u5e38\u611f\u5174\u8da3\u6216\u8005\u6b63\u5728\u81ea\u5b66\uff0c\u90fd\u53ef\u4ee5\u5173\u6ce8\u6211\uff0c\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\uff01\u5f53\u7136\uff0c\u6709\u4ec0\u4e48\u5efa\u8bae\u4e5f\u6b22\u8fce\u5728\u8bc4\u8bba\u7559\u8a00\u63d0\u51fa\uff01\u4e00\u8d77\u5b66\u4e60\uff01 1.uptime \u8fd9\u4e2a\u547d\u4ee4\u53ef\u4ee5\u5feb\u901f\u67e5\u770b\u673a\u5668\u7684\u8d1f\u8f7d\u60c5\u51b5\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u8fd9\u4e9b\u6570\u636e\u8868\u793a\u7b49\u5f85CPU\u8d44\u6e90\u7684\u8fdb\u7a0b\u548c\u963b\u585e\u5728\u4e0d\u53ef\u4e2d\u65adIO\u8fdb\u7a0b\uff08\u8fdb\u7a0b\u72b6\u6001\u4e3aD\uff09\u7684\u6570\u91cf\u3002\u8fd9\u4e9b\u6570\u636e\u53ef\u4ee5\u8ba9\u6211\u4eec\u5bf9\u7cfb\u7edf\u8d44\u6e90\u4f7f\u7528\u6709\u4e00\u4e2a\u5b8f\u89c2\u7684\u4e86\u89e3\u3002 \u547d\u4ee4\u7684\u8f93\u51fa\u5206\u522b\u8868\u793a1\u5206\u949f\u30015\u5206\u949f\u300115\u5206\u949f\u7684\u5e73\u5747\u8d1f\u8f7d\u60c5\u51b5\u3002\u901a\u8fc7\u8fd9\u4e09\u4e2a\u6570\u636e\uff0c\u53ef\u4ee5\u4e86\u89e3\u670d\u52a1\u5668\u8d1f\u8f7d\u662f\u5728\u8d8b\u4e8e\u7d27\u5f20\u8fd8\u662f\u533a\u57df\u7f13\u89e3\u3002\u5982\u679c1\u5206\u949f\u5e73\u5747\u8d1f\u8f7d\u5f88\u9ad8\uff0c\u800c15\u5206\u949f\u5e73\u5747\u8d1f\u8f7d\u5f88\u4f4e\uff0c\u8bf4\u660e\u670d\u52a1\u5668\u6b63\u5728\u547d\u4ee4\u9ad8\u8d1f\u8f7d\u60c5\u51b5\uff0c\u9700\u8981\u8fdb\u4e00\u6b65\u6392\u67e5CPU\u8d44\u6e90\u90fd\u6d88\u8017\u5728\u4e86\u54ea\u91cc\u3002\u53cd\u4e4b\uff0c\u5982\u679c15\u5206\u949f\u5e73\u5747\u8d1f\u8f7d\u5f88\u9ad8\uff0c1\u5206\u949f\u5e73\u5747\u8d1f\u8f7d\u8f83\u4f4e\uff0c\u5219\u6709\u53ef\u80fd\u662fCPU\u8d44\u6e90\u7d27\u5f20\u65f6\u523b\u5df2\u7ecf\u8fc7\u53bb\u3002\u5982\u679c\u8fd11\u5206\u949f\u7684\u5e73\u5747\u8d1f\u8f7d\u8fdc\u9ad8\u4e8e15\u5206\u949f\u7684\u8d1f\u8f7d\u60c5\u51b5,\u90a3\u4e48\u6211\u4eec\u9700\u8981\u7528vmstat,mpstat\u547d\u4ee4\u8fdb\u884c\u6392\u67e5\u3002 2.dmesg|tail dmesg\u8fd9\u6761\u547d\u4ee4\u7528\u4e8e\u67e5\u770b\u5f00\u673a\u4fe1\u606f dmesg|tail\u8be5\u547d\u4ee4\u4f1a\u8f93\u51fa\u7cfb\u7edf\u65e5\u5fd7\u7684\u6700\u540e10\u884c 3.vmstat1 \u6bcf\u884c\u4f1a\u8f93\u51fa\u4e00\u4e9b\u7cfb\u7edf\u6838\u5fc3\u6307\u6807\uff0c\u8fd9\u4e9b\u6307\u6807\u53ef\u4ee5\u8ba9\u6211\u4eec\u66f4\u8be6\u7ec6\u7684\u4e86\u89e3\u7cfb\u7edf\u72b6\u6001\u3002\u540e\u9762\u8ddf\u7684\u53c2\u65702\uff0c\u8868\u793a\u6bcf\u4e24\u79d2\u8f93\u51fa\u4e00\u6b21\u7edf\u8ba1\u4fe1\u606f\uff0c\u8868\u5934\u63d0\u793a\u4e86\u6bcf\u4e00\u5217\u7684\u542b\u4e49\uff0c\u8fd9\u51e0\u4ecb\u7ecd\u4e00\u4e9b\u548c\u6027\u80fd\u8c03\u4f18\u76f8\u5173\u7684\u5217\uff1a r\uff1a\u7b49\u5f85\u5728CPU\u8d44\u6e90\u7684\u8fdb\u7a0b\u6570\u3002\u8fd9\u4e2a\u6570\u636e\u6bd4\u5e73\u5747\u8d1f\u8f7d\u66f4\u52a0\u80fd\u591f\u4f53\u73b0CPU\u8d1f\u8f7d\u60c5\u51b5\uff0c\u6570\u636e\u4e2d\u4e0d\u5305\u542b\u7b49\u5f85IO\u7684\u8fdb\u7a0b\u3002\u5982\u679c\u8fd9\u4e2a\u6570\u503c\u5927\u4e8e\u673a\u5668CPU\u6838\u6570\uff0c\u90a3\u4e48\u673a\u5668\u7684CPU\u8d44\u6e90\u5df2\u7ecf\u9971\u548c\u3002 free\uff1a\u7cfb\u7edf\u53ef\u7528\u5185\u5b58\u6570\uff08\u4ee5\u5343\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5982\u679c\u5269\u4f59\u5185\u5b58\u4e0d\u8db3\uff0c\u4e5f\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u6027\u80fd\u95ee\u9898\u3002\u4e0b\u6587\u4ecb\u7ecd\u5230\u7684free\u547d\u4ee4\uff0c\u53ef\u4ee5\u66f4\u8be6\u7ec6\u7684\u4e86\u89e3\u7cfb\u7edf\u5185\u5b58\u7684\u4f7f\u7528\u60c5\u51b5\u3002 si,so\uff1a\u4ea4\u6362\u533a\u5199\u5165\u548c\u8bfb\u53d6\u7684\u6570\u91cf\u3002\u5982\u679c\u8fd9\u4e2a\u6570\u636e\u4e0d\u4e3a0\uff0c\u8bf4\u660e\u7cfb\u7edf\u5df2\u7ecf\u5728\u4f7f\u7528\u4ea4\u6362\u533a\uff08swap\uff09\uff0c\u673a\u5668\u7269\u7406\u5185\u5b58\u5df2\u7ecf\u4e0d\u8db3\u3002 us,sy,id,wa,st\uff1a\u8fd9\u4e9b\u90fd\u4ee3\u8868\u4e86CPU\u65f6\u95f4\u7684\u6d88\u8017\uff0c\u5b83\u4eec\u5206\u522b\u8868\u793a\u7528\u6237\u65f6\u95f4\uff08user\uff09\u3001\u7cfb\u7edf\uff08\u5185\u6838\uff09\u65f6\u95f4\uff08sys\uff09\u3001\u7a7a\u95f2\u65f6\u95f4\uff08idle\uff09\u3001IO\u7b49\u5f85\u65f6\u95f4\uff08wait\uff09\u548c\u88ab\u5077\u8d70\u7684\u65f6\u95f4\uff08stolen\uff0c\u4e00\u822c\u88ab\u5176\u4ed6\u865a\u62df\u673a\u6d88\u8017\uff09\u3002 \u4e0a\u8ff0\u8fd9\u4e9bCPU\u65f6\u95f4\uff0c\u53ef\u4ee5\u8ba9\u6211\u4eec\u5f88\u5feb\u4e86\u89e3CPU\u662f\u5426\u51fa\u4e8e\u7e41\u5fd9\u72b6\u6001\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u7528\u6237\u65f6\u95f4\u548c\u7cfb\u7edf\u65f6\u95f4\u76f8\u52a0\u975e\u5e38\u5927\uff0cCPU\u51fa\u4e8e\u5fd9\u4e8e\u6267\u884c\u6307\u4ee4\u3002\u5982\u679cIO\u7b49\u5f85\u65f6\u95f4\u5f88\u957f\uff0c\u90a3\u4e48\u7cfb\u7edf\u7684\u74f6\u9888\u53ef\u80fd\u5728\u78c1\u76d8IO\u3002 4.mpstat-PALL1 \u8be5\u547d\u4ee4\u53ef\u4ee5\u663e\u793a\u6bcf\u4e2aCPU\u7684\u5360\u7528\u60c5\u51b5\uff0c\u5982\u679c\u6709\u4e00\u4e2aCPU\u5360\u7528\u7387\u7279\u522b\u9ad8\uff0c\u90a3\u4e48\u6709\u53ef\u80fd\u662f\u4e00\u4e2a\u5355\u7ebf\u7a0b\u5e94\u7528\u7a0b\u5e8f\u5f15\u8d77\u7684\u3002 5.pidstat1 pidstat\u547d\u4ee4\u8f93\u51fa\u8fdb\u7a0b\u7684CPU\u5360\u7528\u7387\uff0c\u8be5\u547d\u4ee4\u4f1a\u6301\u7eed\u8f93\u51fa\uff0c\u5e76\u4e14\u4e0d\u4f1a\u8986\u76d6\u4e4b\u524d\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u65b9\u4fbf\u89c2\u5bdf\u7cfb\u7edf\u52a8\u6001\u3002 6.iostat-xz1 iostat\u547d\u4ee4\u4e3b\u8981\u7528\u4e8e\u67e5\u770b\u673a\u5668\u78c1\u76d8IO\u60c5\u51b5\u3002\u8be5\u547d\u4ee4\u8f93\u51fa\u7684\u5217\uff0c\u4e3b\u8981\u542b\u4e49\u662f\uff1a r\/s,w\/s,rkB\/s,wkB\/s\uff1a\u5206\u522b\u8868\u793a\u6bcf\u79d2\u8bfb\u5199\u6b21\u6570\u548c\u6bcf\u79d2\u8bfb\u5199\u6570\u636e\u91cf\uff08\u5343\u5b57\u8282\uff09\u3002\u8bfb\u5199\u91cf\u8fc7\u5927\uff0c\u53ef\u80fd\u4f1a\u5f15\u8d77\u6027\u80fd\u95ee\u9898\u3002 await\uff1aIO\u64cd\u4f5c\u7684\u5e73\u5747\u7b49\u5f85\u65f6\u95f4\uff0c\u5355\u4f4d\u662f\u6beb\u79d2\u3002\u8fd9\u662f\u5e94\u7528\u7a0b\u5e8f\u5728\u548c\u78c1\u76d8\u4ea4\u4e92\u65f6\uff0c\u9700\u8981\u6d88\u8017\u7684\u65f6\u95f4\uff0c\u5305\u62ecIO\u7b49\u5f85\u548c\u5b9e\u9645\u64cd\u4f5c\u7684\u8017\u65f6\u3002\u5982\u679c\u8fd9\u4e2a\u6570\u503c\u8fc7\u5927\uff0c\u53ef\u80fd\u662f\u786c\u4ef6\u8bbe\u5907\u9047\u5230\u4e86\u74f6\u9888\u6216\u8005\u51fa\u73b0\u6545\u969c\u3002 avgqu-sz\uff1a\u5411\u8bbe\u5907\u53d1\u51fa\u7684\u8bf7\u6c42\u5e73\u5747\u6570\u91cf\u3002\u5982\u679c\u8fd9\u4e2a\u6570\u503c\u5927\u4e8e1\uff0c\u53ef\u80fd\u662f\u786c\u4ef6\u8bbe\u5907\u5df2\u7ecf\u9971\u548c\uff08\u90e8\u5206\u524d\u7aef\u786c\u4ef6\u8bbe\u5907\u652f\u6301\u5e76\u884c\u5199\u5165\uff09\u3002 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