{"id":17586,"date":"2024-11-18T15:30:56","date_gmt":"2024-11-18T07:30:56","guid":{"rendered":"https:\/\/fwq.ai\/blog\/17586\/"},"modified":"2024-11-18T15:30:56","modified_gmt":"2024-11-18T07:30:56","slug":"%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3linux%e7%b3%bb%e7%bb%9f%e4%b8%adcpu%e5%92%8csys%e5%8d%a0%e7%94%a8%e8%bf%87%e9%ab%98%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/17586\/","title":{"rendered":"\u5982\u4f55\u89e3\u51b3Linux\u7cfb\u7edf\u4e2dCPU\u548cSys\u5360\u7528\u8fc7\u9ad8\u95ee\u9898"},"content":{"rendered":"

\"\u5982\u4f55\u89e3\u51b3Linux\u7cfb\u7edf\u4e2dCPU\u548cSys\u5360\u7528\u8fc7\u9ad8\u95ee\u9898\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u89e3\u51b3Linux\u7cfb\u7edf\u4e2dCPU\u548cSys\u5360\u7528\u8fc7\u9ad8\u95ee\u9898\uff0c\u9700\u8981\u5177\u4f53\u4ee3\u7801\u793a\u4f8b<\/p>\n

\u968f\u7740Linux\u7cfb\u7edf\u7684\u5e7f\u6cdb\u5e94\u7528\uff0c\u6709\u65f6\u5019\u6211\u4eec\u4f1a\u9047\u5230CPU\u548cSys\u5360\u7528\u8fc7\u9ad8\u7684\u95ee\u9898\u3002\u8fd9\u79cd\u60c5\u51b5\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u8fd0\u884c\u7f13\u6162\uff0c\u5f71\u54cd\u6b63\u5e38\u7684\u5de5\u4f5c\u548c\u64cd\u4f5c\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u89e3\u51b3\u9ad8CPU\u548cSys\u5360\u7528\u95ee\u9898\u7684\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u4e00\u3001\u68c0\u6d4b\u5360\u7528CPU\u548cSys\u8fc7\u9ad8\u7684\u8fdb\u7a0b<\/p>\n

\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u68c0\u6d4b\u54ea\u4e9b\u8fdb\u7a0b\u5360\u7528\u4e86\u8fc7\u9ad8\u7684CPU\u548cSys\u8d44\u6e90\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528top\u547d\u4ee4\u6765\u67e5\u770b\u7cfb\u7edf\u5f53\u524d\u7684\u8fdb\u7a0b\u60c5\u51b5\uff0c\u5305\u62ecCPU\u548cSys\u7684\u5360\u7528\u60c5\u51b5\u3002\u5728\u7ec8\u7aef\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n

top<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u8fd9\u4f1a\u5217\u51fa\u5f53\u524d\u7cfb\u7edf\u4e2d\u5360\u7528\u8d44\u6e90\u6700\u9ad8\u7684\u8fdb\u7a0b\u3002\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u8fd9\u4e2a\u5217\u8868\u6765\u627e\u5230\u54ea\u4e9b\u8fdb\u7a0b\u5360\u7528\u4e86\u8fc7\u9ad8\u7684CPU\u548cSys\u8d44\u6e90\u3002<\/p>\n
\u4e8c\u3001\u4f18\u5316\u5360\u7528CPU\u8fc7\u9ad8\u7684\u8fdb\u7a0b<\/p>\n
\u4e00\u65e6\u627e\u5230\u4e86\u5360\u7528CPU\u8fc7\u9ad8\u7684\u8fdb\u7a0b\uff0c\u6211\u4eec\u53ef\u4ee5\u5c1d\u8bd5\u4f18\u5316\u8fd9\u4e9b\u8fdb\u7a0b\u7684\u6027\u80fd\uff0c\u4ee5\u51cf\u5c11\u5176\u5bf9\u7cfb\u7edf\u8d44\u6e90\u7684\u5360\u7528\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u4f18\u5316\u65b9\u6cd5\uff1a<\/p>\n
    \n
  1. \u4f7f\u7528nice\u547d\u4ee4\u8c03\u6574\u8fdb\u7a0b\u4f18\u5148\u7ea7<\/strong><\/li>\n<\/ol>\n
    nice\u547d\u4ee4\u53ef\u4ee5\u7528\u6765\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u4f7f\u5176\u5728\u7ade\u4e89CPU\u8d44\u6e90\u65f6\u66f4\u5177\u5f39\u6027\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u6765\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff1a<\/p>\n
    nice -n 10 <command><\/command><\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u5176\u4e2d-n 10\u8868\u793a\u5c06\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u8c03\u6574\u4e3a10\uff0c\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8c03\u6574\u8be5\u6570\u503c\u3002<\/p>\n
      \n
    1. \u4f7f\u7528taskset\u547d\u4ee4\u7ed1\u5b9a\u8fdb\u7a0b\u5230\u6307\u5b9aCPU\u6838\u5fc3<\/strong><\/li>\n<\/ol>\n
      \u6709\u65f6\u5019\u53ef\u4ee5\u5c06\u5360\u7528CPU\u8fc7\u9ad8\u7684\u8fdb\u7a0b\u7ed1\u5b9a\u5230\u7279\u5b9a\u7684CPU\u6838\u5fc3\u4e0a\uff0c\u4ee5\u907f\u514d\u8d44\u6e90\u7ade\u4e89\u3002\u4f7f\u7528taskset\u547d\u4ee4\u53ef\u4ee5\u5b9e\u73b0\u8fd9\u4e00\u529f\u80fd\uff0c\u4f8b\u5982\uff1a<\/p>\n
      taskset -c 0-3 <command><\/command><\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u8fd9\u4f1a\u5c06\u8fdb\u7a0b\u7ed1\u5b9a\u5230CPU\u6838\u5fc30\u52303\u4e0a\uff0c\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8c03\u6574\u7ed1\u5b9a\u7684\u6838\u5fc3\u8303\u56f4\u3002<\/p>\n
      \u4e09\u3001\u4f18\u5316\u5360\u7528Sys\u8fc7\u9ad8\u7684\u8fdb\u7a0b<\/p>\n
      Sys\u5360\u7528\u8fc7\u9ad8\u53ef\u80fd\u662f\u7531\u7cfb\u7edf\u8c03\u7528\u9891\u7e41\u3001IO\u64cd\u4f5c\u8fc7\u591a\u7b49\u539f\u56e0\u5bfc\u81f4\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f18\u5316Sys\u5360\u7528\u8fc7\u9ad8\u7684\u65b9\u6cd5\uff1a<\/p>\n
        \n
      1. \u51cf\u5c11\u7cfb\u7edf\u8c03\u7528\u6b21\u6570<\/strong><\/li>\n<\/ol>\n
        \u53ef\u4ee5\u4f18\u5316\u4ee3\u7801\uff0c\u51cf\u5c11\u7cfb\u7edf\u8c03\u7528\u7684\u6b21\u6570\uff0c\u4ece\u800c\u51cf\u5c11Sys\u7684\u5360\u7528\u3002\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u7f13\u5b58\u3001\u6279\u91cf\u5904\u7406\u7b49\u65b9\u6cd5\u6765\u51cf\u5c11\u7cfb\u7edf\u8c03\u7528\u6b21\u6570\u3002<\/p>\n
          \n
        1. \u4f18\u5316IO\u64cd\u4f5c<\/strong><\/li>\n<\/ol>\n
          \u5982\u679c\u5360\u7528Sys\u8fc7\u9ad8\u7684\u539f\u56e0\u662fIO\u64cd\u4f5c\u8fc7\u591a\uff0c\u53ef\u4ee5\u8003\u8651\u4f18\u5316IO\u64cd\u4f5c\uff0c\u51cf\u5c11IO\u7684\u6b21\u6570\u6216\u63d0\u9ad8IO\u7684\u6548\u7387\u3002\u53ef\u4ee5\u4f7f\u7528\u5f02\u6b65IO\u3001\u7f13\u5b58\u7b49\u65b9\u6cd5\u6765\u4f18\u5316IO\u64cd\u4f5c\u3002<\/p>\n
          \u603b\u7ed3<\/p>\n
          \u901a\u8fc7\u68c0\u6d4b\u3001\u4f18\u5316\u5360\u7528CPU\u548cSys\u8fc7\u9ad8\u7684\u8fdb\u7a0b\uff0c\u53ef\u4ee5\u6709\u6548\u89e3\u51b3Linux\u7cfb\u7edf\u4e2dCPU\u548cSys\u5360\u7528\u8fc7\u9ad8\u7684\u95ee\u9898\u3002\u4ee5\u4e0a\u63d0\u4f9b\u7684\u65b9\u6cd5\u53ea\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u4f18\u5316\u65b9\u6cd5\uff0c\u5b9e\u9645\u60c5\u51b5\u53ef\u80fd\u6709\u6240\u4e0d\u540c\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u60c5\u51b5\u8fdb\u884c\u8c03\u6574\u548c\u4f18\u5316\u3002\u5e0c\u671b\u4ee5\u4e0a\u5185\u5bb9\u5bf9\u89e3\u51b3Linux\u7cfb\u7edf\u4e2dCPU\u548cSys\u5360\u7528\u8fc7\u9ad8\u95ee\u9898\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n
          \u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u89e3\u51b3Linux\u7cfb\u7edf\u4e2dCPU\u548cSys\u5360\u7528\u8fc7\u9ad8\u95ee\u9898\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
          \u5982\u4f55\u89e3\u51b3Linux\u7cfb\u7edf\u4e2dCPU\u548cSys\u5360\u7528\u8fc7\u9ad8\u95ee\u9898\uff0c\u9700\u8981\u5177\u4f53\u4ee3\u7801\u793a\u4f8b \u968f\u7740Linux\u7cfb\u7edf\u7684\u5e7f\u6cdb\u5e94\u7528\uff0c\u6709\u65f6\u5019\u6211\u4eec\u4f1a\u9047\u5230CPU\u548cSys\u5360\u7528\u8fc7\u9ad8\u7684\u95ee\u9898\u3002\u8fd9\u79cd\u60c5\u51b5\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u8fd0\u884c\u7f13\u6162\uff0c\u5f71\u54cd\u6b63\u5e38\u7684\u5de5\u4f5c\u548c\u64cd\u4f5c\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u89e3\u51b3\u9ad8CPU\u548cSys\u5360\u7528\u95ee\u9898\u7684\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u4e00\u3001\u68c0\u6d4b\u5360\u7528CPU\u548cSys\u8fc7\u9ad8\u7684\u8fdb\u7a0b \u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u68c0\u6d4b\u54ea\u4e9b\u8fdb\u7a0b\u5360\u7528\u4e86\u8fc7\u9ad8\u7684CPU\u548cSys\u8d44\u6e90\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528top\u547d\u4ee4\u6765\u67e5\u770b\u7cfb\u7edf\u5f53\u524d\u7684\u8fdb\u7a0b\u60c5\u51b5\uff0c\u5305\u62ecCPU\u548cSys\u7684\u5360\u7528\u60c5\u51b5\u3002\u5728\u7ec8\u7aef\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a top \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u4f1a\u5217\u51fa\u5f53\u524d\u7cfb\u7edf\u4e2d\u5360\u7528\u8d44\u6e90\u6700\u9ad8\u7684\u8fdb\u7a0b\u3002\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u8fd9\u4e2a\u5217\u8868\u6765\u627e\u5230\u54ea\u4e9b\u8fdb\u7a0b\u5360\u7528\u4e86\u8fc7\u9ad8\u7684CPU\u548cSys\u8d44\u6e90\u3002 \u4e8c\u3001\u4f18\u5316\u5360\u7528CPU\u8fc7\u9ad8\u7684\u8fdb\u7a0b \u4e00\u65e6\u627e\u5230\u4e86\u5360\u7528CPU\u8fc7\u9ad8\u7684\u8fdb\u7a0b\uff0c\u6211\u4eec\u53ef\u4ee5\u5c1d\u8bd5\u4f18\u5316\u8fd9\u4e9b\u8fdb\u7a0b\u7684\u6027\u80fd\uff0c\u4ee5\u51cf\u5c11\u5176\u5bf9\u7cfb\u7edf\u8d44\u6e90\u7684\u5360\u7528\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u4f18\u5316\u65b9\u6cd5\uff1a \u4f7f\u7528nice\u547d\u4ee4\u8c03\u6574\u8fdb\u7a0b\u4f18\u5148\u7ea7 nice\u547d\u4ee4\u53ef\u4ee5\u7528\u6765\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u4f7f\u5176\u5728\u7ade\u4e89CPU\u8d44\u6e90\u65f6\u66f4\u5177\u5f39\u6027\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u6765\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff1a nice -n 10 <command><\/command> \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d-n 10\u8868\u793a\u5c06\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u8c03\u6574\u4e3a10\uff0c\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8c03\u6574\u8be5\u6570\u503c\u3002 \u4f7f\u7528taskset\u547d\u4ee4\u7ed1\u5b9a\u8fdb\u7a0b\u5230\u6307\u5b9aCPU\u6838\u5fc3 \u6709\u65f6\u5019\u53ef\u4ee5\u5c06\u5360\u7528CPU\u8fc7\u9ad8\u7684\u8fdb\u7a0b\u7ed1\u5b9a\u5230\u7279\u5b9a\u7684CPU\u6838\u5fc3\u4e0a\uff0c\u4ee5\u907f\u514d\u8d44\u6e90\u7ade\u4e89\u3002\u4f7f\u7528taskset\u547d\u4ee4\u53ef\u4ee5\u5b9e\u73b0\u8fd9\u4e00\u529f\u80fd\uff0c\u4f8b\u5982\uff1a taskset -c 0-3 <command><\/command> \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u4f1a\u5c06\u8fdb\u7a0b\u7ed1\u5b9a\u5230CPU\u6838\u5fc30\u52303\u4e0a\uff0c\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8c03\u6574\u7ed1\u5b9a\u7684\u6838\u5fc3\u8303\u56f4\u3002 \u4e09\u3001\u4f18\u5316\u5360\u7528Sys\u8fc7\u9ad8\u7684\u8fdb\u7a0b Sys\u5360\u7528\u8fc7\u9ad8\u53ef\u80fd\u662f\u7531\u7cfb\u7edf\u8c03\u7528\u9891\u7e41\u3001IO\u64cd\u4f5c\u8fc7\u591a\u7b49\u539f\u56e0\u5bfc\u81f4\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f18\u5316Sys\u5360\u7528\u8fc7\u9ad8\u7684\u65b9\u6cd5\uff1a 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