{"id":61920,"date":"2025-04-29T15:25:30","date_gmt":"2025-04-29T07:25:30","guid":{"rendered":"https:\/\/fwq.ai\/blog\/61920\/"},"modified":"2025-04-29T15:25:30","modified_gmt":"2025-04-29T07:25:30","slug":"linux%e6%9f%a5%e7%9c%8bcpu%e4%bd%bf%e7%94%a8%e7%8e%87-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/61920\/","title":{"rendered":"linux\u67e5\u770bcpu\u4f7f\u7528\u7387"},"content":{"rendered":"<blockquote><p>\n  linux\u67e5\u770bcpu\u4f7f\u7528\u7387\u7684\u65b9\u6cd5\uff1a1\u3001\u4f7f\u7528top\u547d\u4ee4\uff0ctop\u547d\u4ee4\u662f\u4e00\u4e2a\u5e38\u7528\u7684linux\u7cfb\u7edf\u76d1\u63a7\u547d\u4ee4\uff0c\u53ef\u4ee5\u5b9e\u65f6\u67e5\u770b\u7cfb\u7edf\u7684\u8fdb\u7a0b\u548c\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\uff1b2\u3001\u4f7f\u7528mpstat\u547d\u4ee4\uff0cmpstat\u547d\u4ee4\u662f\u4e00\u4e2alinux\u7cfb\u7edf\u76d1\u63a7\u547d\u4ee4\uff0c\u53ef\u4ee5\u5b9e\u65f6\u663e\u793acpu\u4f7f\u7528\u7387\u548c\u5176\u4ed6cpu\u7edf\u8ba1\u6570\u636e\uff1b3\u3001\u4f7f\u7528sar\u547d\u4ee4\uff0csar\u547d\u4ee4\u662f\u4e00\u4e2alinux\u7cfb\u7edf\u76d1\u63a7\u547d\u4ee4\uff0c\u53ef\u4ee5\u5b9e\u65f6\u67e5\u770bcpu\u4f7f\u7528\u7387\u4ee5\u53ca\u5176\u4ed6\u7cfb\u7edf\u6027\u80fd\u6307\u6807\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202307\/25\/2023072510132979501.jpg\" class=\"aligncenter\" title=\"linux\u67e5\u770bcpu\u4f7f\u7528\u7387\u63d2\u56fe\" alt=\"linux\u67e5\u770bcpu\u4f7f\u7528\u7387\u63d2\u56fe\" \/><\/p>\n<p>Linux\u662f\u4e00\u79cd\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edf\uff0c\u88ab\u5e7f\u6cdb\u7528\u4e8e\u670d\u52a1\u5668\u548c\u5d4c\u5165\u5f0f\u8bbe\u5907\u4e0a\u3002\u4f5c\u4e3a\u4e00\u4e2a\u670d\u52a1\u5668\u64cd\u4f5c\u7cfb\u7edf\uff0c\u76d1\u63a7\u7cfb\u7edf\u8d44\u6e90\u7684\u4f7f\u7528\u60c5\u51b5\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728Linux\u7cfb\u7edf\u4e0a\u67e5\u770bCPU\u4f7f\u7528\u7387\u3002<\/p>\n<p>\u5728Linux\u4e2d\u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u67e5\u770bCPU\u4f7f\u7528\u7387\uff0c\u4e0b\u9762\u5c06\u9010\u4e00\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\u3002<\/p>\n<p><strong>1. \u4f7f\u7528top\u547d\u4ee4<\/strong><\/p>\n<p>top\u547d\u4ee4\u662f\u4e00\u4e2a\u5e38\u7528\u7684Linux\u7cfb\u7edf\u76d1\u63a7\u547d\u4ee4\uff0c\u53ef\u4ee5\u5b9e\u65f6\u67e5\u770b\u7cfb\u7edf\u7684\u8fdb\u7a0b\u548c\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u67e5\u770bCPU\u4f7f\u7528\u7387\uff1a<\/p>\n<pre>top<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u542f\u52a8top\u547d\u4ee4\u540e\uff0c\u4f1a\u663e\u793a\u5f53\u524d\u7cfb\u7edf\u7684\u5404\u9879\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\uff0c\u5305\u62ecCPU\u4f7f\u7528\u7387\u3002\u5728top\u754c\u9762\uff0c\u53ef\u4ee5\u770b\u5230\u4e00\u4e2aCPU\u884c\uff0c\u5176\u4e2d\u5305\u542b\u4e86CPU\u4f7f\u7528\u7387\u7684\u4fe1\u606f\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>%Cpu(s):&nbsp;5.0&nbsp;us,&nbsp;2.0&nbsp;sy,&nbsp;0.0&nbsp;ni,&nbsp;93.0&nbsp;id,&nbsp;0.0&nbsp;wa,&nbsp;0.0&nbsp;hi,&nbsp;0.0&nbsp;si,&nbsp;0.0&nbsp;st<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff0cus\u8868\u793a\u7528\u6237\u7a7a\u95f4\u7a0b\u5e8f\u7684CPU\u4f7f\u7528\u7387\uff0csy\u8868\u793a\u7cfb\u7edf\u5185\u6838\u7684CPU\u4f7f\u7528\u7387\uff0cid\u8868\u793aCPU\u7a7a\u95f2\u7684\u65f6\u95f4\u3002<\/p>\n<p><strong>2. \u4f7f\u7528mpstat\u547d\u4ee4<\/strong><\/p>\n<p>mpstat\u547d\u4ee4\u662f\u4e00\u4e2aLinux\u7cfb\u7edf\u76d1\u63a7\u547d\u4ee4\uff0c\u53ef\u4ee5\u5b9e\u65f6\u663e\u793aCPU\u4f7f\u7528\u7387\u548c\u5176\u4ed6CPU\u7edf\u8ba1\u6570\u636e\u3002mpstat\u547d\u4ee4\u9ed8\u8ba4\u663e\u793a\u6240\u6709CPU\u7684\u4f7f\u7528\u60c5\u51b5\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u67e5\u770bCPU\u4f7f\u7528\u7387\uff1a<\/p>\n<pre>mpstat<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u542f\u52a8mpstat\u547d\u4ee4\u540e\uff0c\u4f1a\u663e\u793a\u6bcf\u4e2aCPU\u6838\u5fc3\u7684\u4f7f\u7528\u60c5\u51b5\uff0c\u5305\u62ec\u7528\u6237\u7a7a\u95f4\u7a0b\u5e8f\u3001\u7cfb\u7edf\u5185\u6838\u3001\u7a7a\u95f2\u7b49\u76f8\u5173\u4fe1\u606f\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>02:40:01&nbsp;AM&nbsp;CPU&nbsp;%user&nbsp;%nice&nbsp;%sys&nbsp;%iowait&nbsp;%irq&nbsp;%soft&nbsp;%steal&nbsp;%guest&nbsp;%idle\n02:40:01&nbsp;AM&nbsp;all&nbsp;5.42&nbsp;0.02&nbsp;2.09&nbsp;0.04&nbsp;0.00&nbsp;0.01&nbsp;0.00&nbsp;0.00&nbsp;92.42<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff0c%user\u8868\u793a\u7528\u6237\u7a7a\u95f4\u7a0b\u5e8f\u7684CPU\u4f7f\u7528\u7387\uff0c%sys\u8868\u793a\u7cfb\u7edf\u5185\u6838\u7684CPU\u4f7f\u7528\u7387\uff0c%idle\u8868\u793aCPU\u7a7a\u95f2\u7684\u65f6\u95f4\u3002<\/p>\n<p><strong>3. \u4f7f\u7528sar\u547d\u4ee4<\/strong><\/p>\n<p>sar\u547d\u4ee4\u662f\u4e00\u4e2aLinux\u7cfb\u7edf\u76d1\u63a7\u547d\u4ee4\uff0c\u53ef\u4ee5\u5b9e\u65f6\u67e5\u770bCPU\u4f7f\u7528\u7387\u4ee5\u53ca\u5176\u4ed6\u7cfb\u7edf\u6027\u80fd\u6307\u6807\u3002sar\u547d\u4ee4\u9700\u8981\u5b89\u88c5sysstat\u5de5\u5177\u5305\u6765\u4f7f\u7528\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u67e5\u770bCPU\u4f7f\u7528\u7387\uff1a<\/p>\n<pre>sar&nbsp;-u<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u542f\u52a8sar\u547d\u4ee4\u540e\uff0c\u4f1a\u663e\u793aCPU\u7684\u4f7f\u7528\u60c5\u51b5\uff0c\u5305\u62ec\u7528\u6237\u7a7a\u95f4\u7a0b\u5e8f\u3001\u7cfb\u7edf\u5185\u6838\u3001\u7a7a\u95f2\u7b49\u76f8\u5173\u4fe1\u606f\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>12:00:01&nbsp;AM&nbsp;&nbsp;CPU&nbsp;&nbsp;%user&nbsp;&nbsp;%nice&nbsp;%system&nbsp;%iowait&nbsp;&nbsp;%steal&nbsp;&nbsp;%idle\n12:10:01&nbsp;AM&nbsp;&nbsp;all&nbsp;&nbsp;&nbsp;8.24&nbsp;&nbsp;&nbsp;0.00&nbsp;&nbsp;&nbsp;3.29&nbsp;&nbsp;&nbsp;0.02&nbsp;&nbsp;&nbsp;0.00&nbsp;&nbsp;88.45<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff0c%user\u8868\u793a\u7528\u6237\u7a7a\u95f4\u7a0b\u5e8f\u7684CPU\u4f7f\u7528\u7387\uff0c%system\u8868\u793a\u7cfb\u7edf\u5185\u6838\u7684CPU\u4f7f\u7528\u7387\uff0c%idle\u8868\u793aCPU\u7a7a\u95f2\u7684\u65f6\u95f4\u3002<\/p>\n<p>\u9664\u4e86\u4ee5\u4e0a\u7684\u547d\u4ee4\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u5de5\u5177\u6765\u67e5\u770bCPU\u4f7f\u7528\u7387\uff0c\u5982htop\u3001nmon\u7b49\u3002\u8fd9\u4e9b\u5de5\u5177\u63d0\u4f9b\u4e86\u66f4\u4e30\u5bcc\u7684\u754c\u9762\u548c\u529f\u80fd\uff0c\u80fd\u591f\u66f4\u8be6\u7ec6\u5730\u663e\u793a\u7cfb\u7edf\u8d44\u6e90\u7684\u4f7f\u7528\u60c5\u51b5\u3002<\/p>\n<p><strong>\u603b\u7ed3<\/strong><\/p>\n<p>\u5728Linux\u7cfb\u7edf\u4e0a\u67e5\u770bCPU\u4f7f\u7528\u7387\u53ef\u4ee5\u4f7f\u7528top\u3001mpstat\u3001sar\u7b49\u547d\u4ee4\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u5176\u4ed6\u5de5\u5177\u3002\u6839\u636e\u5b9e\u9645\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u547d\u4ee4\u6216\u5de5\u5177\u6765\u8fdb\u884c\u76d1\u63a7\u3002\u901a\u8fc7\u5b9e\u65f6\u67e5\u770bCPU\u4f7f\u7528\u7387\uff0c\u53ef\u4ee5\u53ca\u65f6\u4e86\u89e3\u7cfb\u7edf\u7684\u8fd0\u884c\u60c5\u51b5\uff0c\u505a\u51fa\u76f8\u5e94\u7684\u4f18\u5316\u548c\u8c03\u6574\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u67e5\u770bcpu\u4f7f\u7528\u7387\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8FDCServers\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>linux\u67e5\u770bcpu\u4f7f\u7528\u7387\u7684\u65b9\u6cd5\uff1a1\u3001\u4f7f\u7528top\u547d\u4ee4\uff0ctop\u547d\u4ee4\u662f\u4e00\u4e2a\u5e38\u7528\u7684linux\u7cfb\u7edf\u76d1\u63a7\u547d\u4ee4\uff0c\u53ef\u4ee5\u5b9e\u65f6\u67e5\u770b\u7cfb\u7edf\u7684\u8fdb\u7a0b\u548c\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\uff1b2\u3001\u4f7f\u7528mpstat\u547d\u4ee4\uff0cmpstat\u547d\u4ee4\u662f\u4e00\u4e2alinux\u7cfb\u7edf\u76d1\u63a7\u547d\u4ee4\uff0c\u53ef\u4ee5\u5b9e\u65f6\u663e\u793acpu\u4f7f\u7528\u7387\u548c\u5176\u4ed6cpu\u7edf\u8ba1\u6570\u636e\uff1b3\u3001\u4f7f\u7528sar\u547d\u4ee4\uff0csar\u547d\u4ee4\u662f\u4e00\u4e2alinux\u7cfb\u7edf\u76d1\u63a7\u547d\u4ee4\uff0c\u53ef\u4ee5\u5b9e\u65f6\u67e5\u770bcpu\u4f7f\u7528\u7387\u4ee5\u53ca\u5176\u4ed6\u7cfb\u7edf\u6027\u80fd\u6307\u6807\u3002 Linux\u662f\u4e00\u79cd\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edf\uff0c\u88ab\u5e7f\u6cdb\u7528\u4e8e\u670d\u52a1\u5668\u548c\u5d4c\u5165\u5f0f\u8bbe\u5907\u4e0a\u3002\u4f5c\u4e3a\u4e00\u4e2a\u670d\u52a1\u5668\u64cd\u4f5c\u7cfb\u7edf\uff0c\u76d1\u63a7\u7cfb\u7edf\u8d44\u6e90\u7684\u4f7f\u7528\u60c5\u51b5\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728Linux\u7cfb\u7edf\u4e0a\u67e5\u770bCPU\u4f7f\u7528\u7387\u3002 \u5728Linux\u4e2d\u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u67e5\u770bCPU\u4f7f\u7528\u7387\uff0c\u4e0b\u9762\u5c06\u9010\u4e00\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\u3002 1. \u4f7f\u7528top\u547d\u4ee4 top\u547d\u4ee4\u662f\u4e00\u4e2a\u5e38\u7528\u7684Linux\u7cfb\u7edf\u76d1\u63a7\u547d\u4ee4\uff0c\u53ef\u4ee5\u5b9e\u65f6\u67e5\u770b\u7cfb\u7edf\u7684\u8fdb\u7a0b\u548c\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u67e5\u770bCPU\u4f7f\u7528\u7387\uff1a top \u767b\u5f55\u540e\u590d\u5236 \u542f\u52a8top\u547d\u4ee4\u540e\uff0c\u4f1a\u663e\u793a\u5f53\u524d\u7cfb\u7edf\u7684\u5404\u9879\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\uff0c\u5305\u62ecCPU\u4f7f\u7528\u7387\u3002\u5728top\u754c\u9762\uff0c\u53ef\u4ee5\u770b\u5230\u4e00\u4e2aCPU\u884c\uff0c\u5176\u4e2d\u5305\u542b\u4e86CPU\u4f7f\u7528\u7387\u7684\u4fe1\u606f\u3002\u4f8b\u5982\uff1a %Cpu(s):&nbsp;5.0&nbsp;us,&nbsp;2.0&nbsp;sy,&nbsp;0.0&nbsp;ni,&nbsp;93.0&nbsp;id,&nbsp;0.0&nbsp;wa,&nbsp;0.0&nbsp;hi,&nbsp;0.0&nbsp;si,&nbsp;0.0&nbsp;st \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0cus\u8868\u793a\u7528\u6237\u7a7a\u95f4\u7a0b\u5e8f\u7684CPU\u4f7f\u7528\u7387\uff0csy\u8868\u793a\u7cfb\u7edf\u5185\u6838\u7684CPU\u4f7f\u7528\u7387\uff0cid\u8868\u793aCPU\u7a7a\u95f2\u7684\u65f6\u95f4\u3002 2. \u4f7f\u7528mpstat\u547d\u4ee4 mpstat\u547d\u4ee4\u662f\u4e00\u4e2aLinux\u7cfb\u7edf\u76d1\u63a7\u547d\u4ee4\uff0c\u53ef\u4ee5\u5b9e\u65f6\u663e\u793aCPU\u4f7f\u7528\u7387\u548c\u5176\u4ed6CPU\u7edf\u8ba1\u6570\u636e\u3002mpstat\u547d\u4ee4\u9ed8\u8ba4\u663e\u793a\u6240\u6709CPU\u7684\u4f7f\u7528\u60c5\u51b5\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u67e5\u770bCPU\u4f7f\u7528\u7387\uff1a mpstat \u767b\u5f55\u540e\u590d\u5236 \u542f\u52a8mpstat\u547d\u4ee4\u540e\uff0c\u4f1a\u663e\u793a\u6bcf\u4e2aCPU\u6838\u5fc3\u7684\u4f7f\u7528\u60c5\u51b5\uff0c\u5305\u62ec\u7528\u6237\u7a7a\u95f4\u7a0b\u5e8f\u3001\u7cfb\u7edf\u5185\u6838\u3001\u7a7a\u95f2\u7b49\u76f8\u5173\u4fe1\u606f\u3002\u4f8b\u5982\uff1a 02:40:01&nbsp;AM&nbsp;CPU&nbsp;%user&nbsp;%nice&nbsp;%sys&nbsp;%iowait&nbsp;%irq&nbsp;%soft&nbsp;%steal&nbsp;%guest&nbsp;%idle 02:40:01&nbsp;AM&nbsp;all&nbsp;5.42&nbsp;0.02&nbsp;2.09&nbsp;0.04&nbsp;0.00&nbsp;0.01&nbsp;0.00&nbsp;0.00&nbsp;92.42 \u767b\u5f55\u540e\u590d\u5236 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