{"id":34534,"date":"2025-04-29T23:30:40","date_gmt":"2025-04-29T15:30:40","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/34534.html"},"modified":"2025-04-29T23:30:40","modified_gmt":"2025-04-29T15:30:40","slug":"%e5%a6%82%e4%bd%95%e5%a4%84%e7%90%86cpu-100%e7%9a%84%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/34534.html","title":{"rendered":"\u5982\u4f55\u5904\u7406CPU 100%\u7684\u95ee\u9898"},"content":{"rendered":"<\/p>\n<h4>\u76ee\u5f55<\/h4>\n<ul>\n<li>\n<ul>\n<li>\n<ul>\n<li>\u4e00\u3001\u8bca\u65adCPU 100%\u7684\u95ee\u9898<\/li>\n<li>\n<ul>\n<li>1.1 \u4f7f\u7528\u7cfb\u7edf\u76d1\u63a7\u5de5\u5177<\/li>\n<li>1.2 \u786e\u8ba4\u9ad8CPU\u4f7f\u7528\u7684\u8fdb\u7a0b<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001\u6392\u67e5\u539f\u56e0<\/li>\n<li>\n<ul>\n<li>2.1 \u5206\u6790\u9ad8CPU\u4f7f\u7528\u7684\u8fdb\u7a0b<\/li>\n<li>2.2 \u68c0\u67e5\u7cfb\u7edf\u65e5\u5fd7<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09\u3001\u89e3\u51b3\u65b9\u6848<\/li>\n<li>\n<ul>\n<li>3.1 \u91cd\u65b0\u542f\u52a8\u8fdb\u7a0b<\/li>\n<li>3.2 \u4f18\u5316\u4ee3\u7801\u548c\u914d\u7f6e<\/li>\n<li>3.3 \u786c\u4ef6\u5347\u7ea7<\/li>\n<li>3.4 \u4f7f\u7528\u8d1f\u8f7d\u5747\u8861<\/li>\n<li>3.5 \u8c03\u6574\u7cfb\u7edf\u8c03\u5ea6\u7b56\u7565<\/li>\n<\/ul>\n<\/li>\n<li>\u56db\u3001\u9884\u9632\u63aa\u65bd<\/li>\n<li>\n<ul>\n<li>4.1 \u5b9a\u671f\u76d1\u63a7<\/li>\n<li>4.2 \u5408\u7406\u7684\u8d44\u6e90\u5206\u914d<\/li>\n<li>4.3 \u8d1f\u8f7d\u6d4b\u8bd5<\/li>\n<li>4.4 \u81ea\u52a8\u6269\u5c55<\/li>\n<\/ul>\n<\/li>\n<li>\u4e94\u3001\u603b\u7ed3<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>CPU 100% \u7684\u95ee\u9898\u662f\u8bb8\u591a\u7cfb\u7edf\u7ba1\u7406\u5458\u548c\u5f00\u53d1\u8005\u5728\u65e5\u5e38\u5de5\u4f5c\u4e2d\u7ecf\u5e38\u9047\u5230\u7684\u4e00\u4e2a\u6311\u6218\u3002\u5b83\u4e0d\u4ec5\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u54cd\u5e94\u53d8\u6162&#xff0c;\u8fd8\u53ef\u80fd\u5f15\u53d1\u5176\u4ed6\u4e00\u7cfb\u5217\u6027\u80fd\u95ee\u9898\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u63a2\u8ba8\u5982\u4f55\u5904\u7406CPU 100%\u7684\u95ee\u9898&#xff0c;\u5305\u62ec\u95ee\u9898\u7684\u8bca\u65ad\u3001\u6392\u67e5\u539f\u56e0\u3001\u89e3\u51b3\u65b9\u6848\u548c\u9884\u9632\u63aa\u65bd\u3002<\/p>\n<h4>\u4e00\u3001\u8bca\u65adCPU 100%\u7684\u95ee\u9898<\/h4>\n<h5>1.1 \u4f7f\u7528\u7cfb\u7edf\u76d1\u63a7\u5de5\u5177<\/h5>\n<p>\u9996\u5148&#xff0c;\u4f7f\u7528\u7cfb\u7edf\u76d1\u63a7\u5de5\u5177\u6765\u786e\u8ba4CPU 100%\u7684\u73b0\u8c61\u3002\u8fd9\u4e9b\u5de5\u5177\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e&#xff1a;<\/p>\n<ul>\n<li>top&#xff1a;\u5b9e\u65f6\u663e\u793a\u7cfb\u7edf\u4e2d\u5404\u4e2a\u8fdb\u7a0b\u7684CPU\u548c\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u3002<\/li>\n<li>htop&#xff1a;top\u7684\u4e00\u4e2a\u589e\u5f3a\u7248&#xff0c;\u6709\u66f4\u53cb\u597d\u7684\u754c\u9762\u548c\u66f4\u591a\u7684\u529f\u80fd\u3002<\/li>\n<li>vmstat&#xff1a;\u53ef\u4ee5\u663e\u793a\u7cfb\u7edf\u7684\u5185\u5b58\u3001\u8fdb\u7a0b\u3001CPU\u6d3b\u52a8\u7b49\u4fe1\u606f\u3002<\/li>\n<li>mpstat&#xff1a;\u663e\u793a\u5404\u4e2aCPU\u7684\u5229\u7528\u7387\u3002<\/li>\n<li>iostat&#xff1a;\u663e\u793aCPU\u548cI\/O\u8bbe\u5907\u7684\u7edf\u8ba1\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982&#xff0c;\u4f7f\u7528top\u547d\u4ee4&#xff1a;<\/p>\n<p><span class=\"token function\">top<\/span><\/p>\n<p>\u5728\u8f93\u51fa\u4e2d&#xff0c;\u4f60\u53ef\u4ee5\u770b\u5230\u7cfb\u7edf\u4e2d\u8fd0\u884c\u7684\u8fdb\u7a0b\u53ca\u5176CPU\u4f7f\u7528\u7387\u3002<\/p>\n<h5>1.2 \u786e\u8ba4\u9ad8CPU\u4f7f\u7528\u7684\u8fdb\u7a0b<\/h5>\n<p>\u5728top\u6216htop\u7684\u8f93\u51fa\u4e2d&#xff0c;\u627e\u5230\u4f7f\u7528CPU\u6700\u591a\u7684\u8fdb\u7a0b\u3002\u8fd9\u4e9b\u8fdb\u7a0b\u901a\u5e38\u4f1a\u6392\u5728\u524d\u51e0\u4f4d\u3002\u8bb0\u5f55\u4e0b\u8fd9\u4e9b\u8fdb\u7a0b\u7684PID&#xff08;\u8fdb\u7a0bID&#xff09;\u548c\u547d\u4ee4\u540d\u79f0\u3002<\/p>\n<h4>\u4e8c\u3001\u6392\u67e5\u539f\u56e0<\/h4>\n<h5>2.1 \u5206\u6790\u9ad8CPU\u4f7f\u7528\u7684\u8fdb\u7a0b<\/h5>\n<p>\u786e\u8ba4\u9ad8CPU\u4f7f\u7528\u7684\u8fdb\u7a0b\u540e&#xff0c;\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u4e00\u6b65\u5206\u6790&#xff1a;<\/p>\n<ul>\n<li>ps&#xff1a;\u67e5\u770b\u8fdb\u7a0b\u7684\u8be6\u7ec6\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p><span class=\"token function\">ps<\/span> <span class=\"token parameter variable\">-p<\/span> <span class=\"token operator\">&lt;<\/span>PID<span class=\"token operator\">&gt;<\/span> <span class=\"token parameter variable\">-o<\/span> %cpu,%mem,cmd<\/p>\n<ul>\n<li>strace&#xff1a;\u8ddf\u8e2a\u7cfb\u7edf\u8c03\u7528\u548c\u4fe1\u53f7\u3002<\/li>\n<\/ul>\n<p><span class=\"token function\">strace<\/span> <span class=\"token parameter variable\">-p<\/span> <span class=\"token operator\">&lt;<\/span>PID<span class=\"token operator\">&gt;<\/span><\/p>\n<ul>\n<li>lsof&#xff1a;\u67e5\u770b\u8fdb\u7a0b\u6253\u5f00\u7684\u6587\u4ef6\u3002<\/li>\n<\/ul>\n<p><span class=\"token function\">lsof<\/span> <span class=\"token parameter variable\">-p<\/span> <span class=\"token operator\">&lt;<\/span>PID<span class=\"token operator\">&gt;<\/span><\/p>\n<ul>\n<li>perf&#xff1a;\u6027\u80fd\u5206\u6790\u5de5\u5177&#xff0c;\u53ef\u4ee5\u5206\u6790CPU\u4f7f\u7528\u60c5\u51b5\u3002<\/li>\n<\/ul>\n<p>perf <span class=\"token function\">top<\/span><\/p>\n<h5>2.2 \u68c0\u67e5\u7cfb\u7edf\u65e5\u5fd7<\/h5>\n<p>\u7cfb\u7edf\u65e5\u5fd7\u53ef\u80fd\u5305\u542b\u6709\u5173\u9ad8CPU\u4f7f\u7528\u7684\u7ebf\u7d22\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u65e5\u5fd7&#xff1a;<\/p>\n<ul>\n<li>dmesg&#xff1a;\u67e5\u770b\u5185\u6838\u65e5\u5fd7\u3002<\/li>\n<li>\/var\/log\/syslog \u6216 \/var\/log\/messages&#xff1a;\u67e5\u770b\u7cfb\u7edf\u65e5\u5fd7\u3002<\/li>\n<\/ul>\n<p><span class=\"token function\">dmesg<\/span> <span class=\"token operator\">|<\/span> <span class=\"token function\">grep<\/span> <span class=\"token parameter variable\">-i<\/span> error<br \/>\n<span class=\"token function\">tail<\/span> <span class=\"token parameter variable\">-f<\/span> \/var\/log\/syslog<br \/>\n<span class=\"token function\">tail<\/span> <span class=\"token parameter variable\">-f<\/span> \/var\/log\/messages<\/p>\n<h4>\u4e09\u3001\u89e3\u51b3\u65b9\u6848<\/h4>\n<h5>3.1 \u91cd\u65b0\u542f\u52a8\u8fdb\u7a0b<\/h5>\n<p>\u5bf9\u4e8e\u4e34\u65f6\u6027\u7684\u95ee\u9898&#xff0c;\u91cd\u65b0\u542f\u52a8\u9ad8CPU\u4f7f\u7528\u7684\u8fdb\u7a0b\u53ef\u80fd\u662f\u6700\u5feb\u7684\u89e3\u51b3\u65b9\u6cd5\u3002<\/p>\n<p><span class=\"token function\">sudo<\/span> systemctl restart <span class=\"token operator\">&lt;<\/span>service_name<span class=\"token operator\">&gt;<\/span><\/p>\n<p>\u6216\u8005\u76f4\u63a5\u6740\u6389\u8fdb\u7a0b&#xff1a;<\/p>\n<p><span class=\"token function\">kill<\/span> <span class=\"token parameter variable\">-9<\/span> <span class=\"token operator\">&lt;<\/span>PID<span class=\"token operator\">&gt;<\/span><\/p>\n<h5>3.2 \u4f18\u5316\u4ee3\u7801\u548c\u914d\u7f6e<\/h5>\n<p>\u5982\u679c\u9ad8CPU\u4f7f\u7528\u662f\u7531\u4e8e\u4ee3\u7801\u5b9e\u73b0\u6216\u914d\u7f6e\u4e0d\u5f53\u9020\u6210\u7684&#xff0c;\u4f18\u5316\u4ee3\u7801\u548c\u914d\u7f6e\u662f\u89e3\u51b3\u95ee\u9898\u7684\u6839\u672c\u65b9\u6cd5\u3002\u4f8b\u5982&#xff1a;<\/p>\n<ul>\n<li>\u4f18\u5316\u7b97\u6cd5&#xff0c;\u51cf\u5c11\u8ba1\u7b97\u590d\u6742\u5ea6\u3002<\/li>\n<li>\u4f7f\u7528\u66f4\u9ad8\u6548\u7684\u6570\u636e\u7ed3\u6784\u3002<\/li>\n<li>\u5206\u6790\u5e76\u4f18\u5316SQL\u67e5\u8be2\u3002<\/li>\n<li>\u8c03\u6574\u5e94\u7528\u7a0b\u5e8f\u7684\u7ebf\u7a0b\u6570\u6216\u5e76\u53d1\u8bbe\u7f6e\u3002<\/li>\n<\/ul>\n<h5>3.3 \u786c\u4ef6\u5347\u7ea7<\/h5>\n<p>\u5982\u679c\u7cfb\u7edf\u8d44\u6e90\u4e0d\u8db3\u5bfc\u81f4CPU 100%&#xff0c;\u8003\u8651\u589e\u52a0CPU\u6838\u5fc3\u6216\u5347\u7ea7\u5230\u6027\u80fd\u66f4\u5f3a\u7684\u786c\u4ef6\u3002<\/p>\n<h5>3.4 \u4f7f\u7528\u8d1f\u8f7d\u5747\u8861<\/h5>\n<p>\u5bf9\u4e8e\u9ad8\u5e76\u53d1\u7684\u7f51\u7edc\u5e94\u7528&#xff0c;\u4f7f\u7528\u8d1f\u8f7d\u5747\u8861\u5668\u5c06\u8bf7\u6c42\u5206\u53d1\u5230\u591a\u4e2a\u670d\u52a1\u5668&#xff0c;\u4ee5\u964d\u4f4e\u5355\u4e2a\u670d\u52a1\u5668\u7684\u8d1f\u8f7d\u3002<\/p>\n<h5>3.5 \u8c03\u6574\u7cfb\u7edf\u8c03\u5ea6\u7b56\u7565<\/h5>\n<p>\u8c03\u6574\u7cfb\u7edf\u7684\u8c03\u5ea6\u7b56\u7565&#xff0c;\u5982\u4f7f\u7528nice\u547d\u4ee4\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u3002<\/p>\n<p><span class=\"token function\">nice<\/span> <span class=\"token parameter variable\">-n<\/span> <span class=\"token operator\">&lt;<\/span>priority<span class=\"token operator\">&gt;<\/span> <span class=\"token operator\">&lt;<\/span>command<span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token function\">renice<\/span> <span class=\"token operator\">&lt;<\/span>priority<span class=\"token operator\">&gt;<\/span> <span class=\"token parameter variable\">-p<\/span> <span class=\"token operator\">&lt;<\/span>PID<span class=\"token operator\">&gt;<\/span><\/p>\n<h4>\u56db\u3001\u9884\u9632\u63aa\u65bd<\/h4>\n<h5>4.1 \u5b9a\u671f\u76d1\u63a7<\/h5>\n<p>\u5b9a\u671f\u76d1\u63a7\u7cfb\u7edf\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5&#xff0c;\u53ca\u65f6\u53d1\u73b0\u548c\u5904\u7406\u5f02\u5e38\u60c5\u51b5\u3002\u53ef\u4ee5\u4f7f\u7528\u81ea\u52a8\u5316\u76d1\u63a7\u5de5\u5177\u5982Nagios\u3001Zabbix\u3001Prometheus\u7b49\u3002<\/p>\n<h5>4.2 \u5408\u7406\u7684\u8d44\u6e90\u5206\u914d<\/h5>\n<p>\u4e3a\u4e0d\u540c\u7684\u5e94\u7528\u7a0b\u5e8f\u548c\u670d\u52a1\u5206\u914d\u5408\u7406\u7684\u8d44\u6e90&#xff0c;\u907f\u514d\u8d44\u6e90\u4e89\u7528\u3002\u4f8b\u5982&#xff0c;\u4f7f\u7528cgroups\u5bf9\u8fdb\u7a0b\u8fdb\u884c\u8d44\u6e90\u9650\u5236\u3002<\/p>\n<h5>4.3 \u8d1f\u8f7d\u6d4b\u8bd5<\/h5>\n<p>\u5728\u90e8\u7f72\u524d\u8fdb\u884c\u8d1f\u8f7d\u6d4b\u8bd5&#xff0c;\u4e86\u89e3\u7cfb\u7edf\u5728\u9ad8\u8d1f\u8f7d\u4e0b\u7684\u8868\u73b0&#xff0c;\u5e76\u8fdb\u884c\u76f8\u5e94\u7684\u4f18\u5316\u548c\u8c03\u6574\u3002<\/p>\n<h5>4.4 \u81ea\u52a8\u6269\u5c55<\/h5>\n<p>\u5bf9\u4e8e\u4e91\u73af\u5883\u4e2d\u7684\u5e94\u7528&#xff0c;\u4f7f\u7528\u81ea\u52a8\u6269\u5c55\u673a\u5236&#xff0c;\u6839\u636e\u8d1f\u8f7d\u81ea\u52a8\u589e\u52a0\u6216\u51cf\u5c11\u5b9e\u4f8b\u6570\u91cf\u3002<\/p>\n<h4>\u4e94\u3001\u603b\u7ed3<\/h4>\n<p>CPU 100% 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