{"id":5364,"date":"2022-11-20T23:20:44","date_gmt":"2022-11-20T15:20:44","guid":{"rendered":"https:\/\/ixyzero.com\/blog\/?p=5364"},"modified":"2022-11-20T23:20:44","modified_gmt":"2022-11-20T15:20:44","slug":"linux%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%9a%84cpu%e4%bd%bf%e7%94%a8%e7%8e%87%e5%92%8cload%e8%b4%9f%e8%bd%bd%e4%b9%8b%e9%97%b4%e7%9a%84%e5%85%b3%e7%b3%bb","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/5364.html","title":{"rendered":"Linux\u670d\u52a1\u5668\u7684CPU\u4f7f\u7528\u7387\u548cload\u8d1f\u8f7d\u4e4b\u95f4\u7684\u5173\u7cfb"},"content":{"rendered":"\n<p>=Start=<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u7f18\u7531\uff1a<\/h4>\n\n\n\n<p>\u524d\u6bb5\u65f6\u95f4\u56e0\u4e3a\u90e8\u5206\u5de5\u4f5c\u5185\u5bb9\u6d89\u53ca\u5230Linux\u7cfb\u7edf\u7684CPU\u3001\u5185\u5b58\u8d44\u6e90\u5360\u7528\u5206\u6790\uff0c\u6240\u4ee5\u7b80\u8981\u56de\u987e\u4e86\u4e00\u4e0b<a href=\"https:\/\/ixyzero.com\/blog\/archives\/2582.html\">\u4e4b\u524d\u6574\u7406\u7684\u6587\u7ae0<\/a>\uff0c\u5185\u5bb9\u5176\u5b9e\u6ca1\u5565\u5927\u95ee\u9898\uff0c\u4f46\u592a\u7b80\u5355\u548c\u57fa\u672c\uff0c\u53ea\u662f\u7b80\u5355\u4ecb\u7ecd\u4e86\u4e00\u4e0b\u7cfb\u7edf\u8d1f\u8f7d\u7684\u6982\u5ff5\u4ee5\u53ca\u67e5\u770b\u65b9\u6cd5\uff0c\u7f3a\u5c11\u4e86\u5177\u4f53\u573a\u666f\u4e0b\u7684\u5206\u6790\u601d\u8def\u548c\u65b9\u6cd5\uff0c\u6ca1\u6709\u4ec0\u4e48\u5b9e\u9645\u7684\u6307\u5bfc\u610f\u4e49\uff0c\u6240\u4ee5\u8fd1\u671f\u53c8\u901a\u8fc7\u641c\u7d22\u627e\u5230\u4e86\u4e00\u6279\u4e0d\u9519\u7684\u6587\u7ae0\uff08\u4e3b\u8981\u662f <a href=\"https:\/\/mp.weixin.qq.com\/s\/fzLcAkYwKhj-9hgoVkTzaw\">CPU\u98d9\u9ad8\uff0c\u7cfb\u7edf\u6027\u80fd\u95ee\u9898\u5982\u4f55\u6392\u67e5\uff1f<\/a> \u548c <a href=\"https:\/\/mp.weixin.qq.com\/s\/qqimEIOKjMJe7DHyXT09fA\">\u4e00\u6587\u5e26\u4f60\u5168\u9762\u4e86\u89e3 Load Average \uff08\u8d1f\u8f7d\uff09<\/a> \u8fd9\u4e24\u7bc7\uff09\u8fdb\u884c\u5b66\u4e60\uff0c\u4ee5\u671f\u80fd\u591f\u89e3\u7b54\u6211\u7684\u4e00\u4e9b\u7591\u95ee\uff0c\u540c\u65f6\u65b9\u4fbf\u540e\u9762\u6709\u9700\u8981\u7684\u65f6\u5019\u8fdb\u4e00\u6b65\u53c2\u8003\u3002<\/p>\n\n\n\n<p>\u6211\u7684\u95ee\u9898\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\u591a\u6838Linux\u7cfb\u7edf\u4e0aCPU\u4f7f\u7528\u7387\u548c\u8d1f\u8f7d\u7684\u5173\u7cfb\uff1f<\/li><li><strong>\u673a\u5668\u544a\u8b66CPU\u4f7f\u7528\u7387\u8fc7\u9ad8\u6216\u8d1f\u8f7d\u8fc7\u9ad8\u65f6\uff0c\u8be5\u5982\u4f55\u5feb\u901f\u5b9a\u4f4d\u5927\u4f53\u539f\u56e0\u4ee5\u6307\u5bfc\u7a0b\u5e8f\u6539\u8fdb\uff1f<\/strong><\/li><\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">\u6b63\u6587\uff1a<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\">\u53c2\u8003\u89e3\u7b54\uff1a<\/h5>\n\n\n\n<p>\u5f97\u5230\u7684\u76f8\u5173\u89e3\u7b54\uff1a<\/p>\n\n\n\n<p>1\u3001<strong>\u540c\u7b49\u538b\u529b\u4e0b\uff0c\u4e0d\u8bba\u6838\u6570\u591a\u5c11\uff0cload average\u6570\u503c\u662f\u4e00\u6837\u7684\uff0c\u4f46\u662fcpu idle\u4e0d\u4e00\u6837\uff0c\u6838\u6570\u591a\u7684\u673a\u5668\u7a7a\u95f2\u7387\u9ad8\uff0c\u8868\u793a\u53ef\u4ee5\u627f\u8f7d\u66f4\u591a\u7684\u8ba1\u7b97\u4efb\u52a1\u3002<\/strong><\/p>\n\n\n\n<p>2\u3001<strong>\u5355\u7ebf\u7a0b\u4efb\u52a1\u53ea\u4f1a\u4f7f\u7528\u4e00\u4e2aCPU\uff0c\u4e0d\u7ba1CPU\u6838\u6570\u6709\u591a\u5c11\u3002<\/strong><\/p>\n\n\n\n<p>3\u3001\u591a\u6838CPU\uff0c\u6ee1\u8d1f\u8377\u72b6\u6001\u7684\u6570\u5b57\u4e3a\u201c1.00 * CPU\u6838\u6570\u201d\uff0c\u5373\u53cc\u6838CPU\u4e3a2.00\uff0c\u56db\u6838CPU\u4e3a4.00\u3002<\/p>\n\n\n\n<p>4\u3001<strong>SLEEP\u6001(S\/D)\u8fdb\u7a0b\u4e0d\u4f1a\u5360\u7528\u4efb\u4f55CPU\u8d44\u6e90\u3002<\/strong><\/p>\n\n\n\n<p>5\u3001<strong>Linux\u7cfb\u7edf\u7684load\u5728Linux\u4e2d\u4f53\u73b0\u7684\u662f\u7cfb\u7edf\u6574\u4f53\u8d1f\u8f7d(R+D)\uff0c\u5373CPU\u8d1f\u8f7d + Disk\u8d1f\u8f7d + \u7f51\u7edc\u8d1f\u8f7d + \u5176\u4f59\u5916\u8bbe\u8d1f\u8f7d<\/strong>\uff0c\u5e76\u4e0d\u5b8c\u5168\u7b49\u540c\u4e8eCPU\u4f7f\u7528\u7387(\u8fd9\u79cd\u60c5\u51b5\u53ea\u51fa\u73b0\u5728Linux\u4e2d\uff0c\u5176\u4f59\u7cfb\u7edf\u6bd4\u5982Unix\uff0cLoad\u8fd8\u662f\u53ea\u4ee3\u8868CPU\u8d1f\u8f7d)\uff0c\u800c\u4e14\u4e00\u822c\u662f\u4f1a\u9ad8\u4e8eCPU\u4f7f\u7528\u7387\u7684\uff0c\u56e0\u4e3a\u591a\u5305\u542b\u4e86IO\u7b49\u5f85\u7b49\u8fdb\u7a0b\u3002<\/p>\n\n\n\n<p>6\u3001Load Average\u3001CPU\u3001IO\u548c\u7cfb\u7edf\u662f\u5426\u5361\u987f\u4e4b\u95f4\u7684\u4e00\u822c\u5173\u7cfb\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>CPU\u4f7f\u7528\u7387\u9ad8\uff0cIO\u65e0\u4f5c\u4e1a\uff0cLoad Average\u4f4e\uff0c\u7cfb\u7edf\u53cd\u5e94\u98a0\u7c38\uff08\u54cd\u5e94\u65f6\u6162\u65f6\u5feb\uff09<\/strong>\u2014\u2014\u8fd9\u79cd\u573a\u666f\uff0c<strong>\u901a\u5e38\u662f\u8ba1\u7b97\u5bc6\u96c6\u578b\u4efb\u52a1<\/strong>\uff0c\u5373\u5927\u91cf\u751f\u6210\u8017\u65f6\u77ed\u7684\u8ba1\u7b97\u4efb\u52a1\u3002\u8fd9\u79cd\u4efb\u52a1\u4f1a\u5360\u6ee1CPU\u8d44\u6e90\uff0c\u9020\u6210\u7cfb\u7edf\u54cd\u5e94\u901f\u5ea6\u98a0\u7c38\uff0c\u4f46\u7531\u4e8e\u6bcf\u4e2a\u4efb\u52a1\u80fd\u5feb\u901f\u8ba1\u7b97\u5b8c\u6210\uff0c\u4e0d\u4f1a\u5728\u8fd0\u884c\u961f\u5217\u5806\u79ef\uff0c\u6240\u4ee5\u5728Load Average\u91cc\u4e0d\u4f1a\u4f53\u73b0\u51fa\u6765\u3002<\/li><li><strong>CPU\u4f7f\u7528\u7387\u9ad8\uff0cIO\u7e41\u5fd9\/\u7b49\u5f85\uff0cLoad Average\u9ad8\uff0c\u7cfb\u7edf\u5361<\/strong>\u2014\u2014\u8fd9\u79cd\u573a\u666f\uff0c<strong>\u901a\u5e38\u662f\u670d\u52a1\u6df7\u90e8\uff0c\u5373IO\u3001\u8ba1\u7b97\u5bc6\u96c6\u578b\u4efb\u52a1\u6df7\u90e8\u5728\u4e00\u8d77<\/strong>\uff0c\u76f8\u5f53\u4e8eCPU\u3001IO\u90fd\u5904\u4e8e\u9ad8\u8d1f\u8377\u72b6\u6001\uff0c\u90a3\u4e48Load Average \u81ea\u7136\u5f88\u9ad8\u3002<\/li><li><strong>CPU\u4f7f\u7528\u7387\u4f4e\uff0cIO\u7b49\u5f85\uff0cLoad Average\u9ad8\uff0c\u7cfb\u7edf\u4e0d\u5361<\/strong>\u2014\u2014\u8fd9\u79cd\u573a\u666f\uff0c<strong>\u901a\u5e38\u662fIO\u5bc6\u96c6\u578b\u4efb\u52a1<\/strong>\uff0c\u5982\u679c\u5927\u91cf\u8bf7\u6c42\u90fd\u96c6\u4e2d\u4e8e\u76f8\u540c\u7684IO\u8bbe\u5907\uff0c\u8d85\u51fa\u8bbe\u5907\u7684\u54cd\u5e94\u80fd\u529b\uff0c\u4f1a\u9020\u6210\u4efb\u52a1\u5728\u8fd0\u884c\u961f\u5217\u91cc\u5806\u79ef\u7b49\u5f85\uff0c\u4e5f\u5c31\u662fD\u72b6\u6001\u7684\u8fdb\u7a0b\u5806\u79ef\uff0c\u90a3\u4e48\u6b64\u65f6Load Average\u5c31\u4f1a\u98d9\u9ad8\u3002\u4f46\u7531\u4e8e\u4efb\u52a1\u90fd\u5904\u4e8esleep\u7b49\u5f85\u72b6\u6001\uff0c\u6240\u4ee5Load Average\u7684\u503c\u867d\u7136\u5f88\u9ad8\uff0c\u4f46\u7cfb\u7edf\u54cd\u5e94\u901f\u5ea6\u4e0d\u53d7\u5f71\u54cd\u3002<\/li><li><strong>CPU\u4f7f\u7528\u7387\u4f4e\uff0cIO\u7e41\u5fd9\uff0cLoad Average\u4f4e\uff0c\u7cfb\u7edf\u5361<\/strong>\u2014\u2014\u8fd9\u79cd\u573a\u666f\uff0c<strong>\u901a\u5e38\u662f\u4f4e\u9891\u5927\u6587\u4ef6\u8bfb\u5199<\/strong>\uff0c\u7531\u4e8e\u8bf7\u6c42\u6570\u91cf\u4e0d\u5927\uff0c\u6240\u4ee5\u4efb\u52a1\u90fd\u5904\u4e8eR\u72b6\u6001\uff0cLoad Average\u6570\u503c\u53cd\u6620\u4e86\u5f53\u524d\u8fd0\u884c\u7684\u4efb\u52a1\u6570\uff0c\u4e0d\u4f1a\u98d9\u5347\uff0cIO\u8bbe\u5907\u5904\u4e8e\u6ee1\u8d1f\u8377\u5de5\u4f5c\u72b6\u6001\uff0c\u5bfc\u81f4\u7cfb\u7edf\u54cd\u5e94\u80fd\u529b\u964d\u4f4e\u3002<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u57fa\u7840\u77e5\u8bc6\u50a8\u5907<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\">Linux\u8fdb\u7a0b\u72b6\u6001<\/h5>\n\n\n\n<p>Linux 2.6\u4ee5\u540e\u7684\u5185\u6838\u4e2d\uff0c\u8fdb\u7a0b\u4e00\u822c\u5b58\u57287\u79cd\u57fa\u7840\u72b6\u6001\uff1aD-\u4e0d\u53ef\u4e2d\u65ad\u7761\u7720\u3001R-\u53ef\u6267\u884c\u3001S-\u53ef\u4e2d\u65ad\u7761\u7720\u3001T-\u6682\u505c\u6001\u3001t-\u8ddf\u8e2a\u6001\u3001X-\u6b7b\u4ea1\u6001\u3001Z-\u50f5\u5c38\u6001\uff0c\u8fd9\u51e0\u79cd\u72b6\u6001\u5728ps\u547d\u4ee4\u4e2d\u6709\u5bf9\u5e94\u89e3\u91ca\uff0c\u4e0b\u9762\u662f\u5177\u4f53\u7684\u89e3\u91ca\u548c\u4e2d\u6587\u7ffb\u8bd1\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ man ps\n...\nPROCESS STATE CODES\n  Here are the different values that the s, stat and state output specifiers (header \"STAT\" or \"S\") will display to describe the state of a process:\n\n   D    uninterruptible sleep (usually IO) TASK_UNINTERRUPTIBLE,\u4e0d\u53ef\u4e2d\u65ad\u7761\u7720\u6001\u3002\u4e00\u822c\u7531I\/O\u7b49\u5f85(\u6bd4\u5982\u78c1\u76d8I\/O\u3001\u7f51\u7edcI\/O\u3001\u5916\u8bbeI\/O\u7b49)\u5f15\u8d77\uff0c\u51fa\u73b0\u65f6\u95f4\u975e\u5e38\u77ed\u6682\uff0c\u5927\u591a\u5f88\u96be\u88abPS\u6216\u8005TOP\u547d\u4ee4\u6355\u83b7(\u9664\u975eI\/O HANG\u6b7b)\u3002SLEEP\u6001\u8fdb\u7a0b\u4e0d\u4f1a\u5360\u7528\u4efb\u4f55CPU\u8d44\u6e90\u3002\n\n   R    running or runnable (on run queue) TASK_RUNNING,\u53ef\u6267\u884c\u6001\u3002\u8fd9\u79cd\u72b6\u6001\u7684\u8fdb\u7a0b\u90fd\u4f4d\u4e8eCPU\u7684\u53ef\u6267\u884c\u961f\u5217\u4e2d\uff0c\u6b63\u5728\u8fd0\u884c\u6216\u8005\u6b63\u5728\u7b49\u5f85\u8fd0\u884c\uff0c\u5373\u4e0d\u662f\u5728\u4e0a\u73ed\u5c31\u662f\u5728\u4e0a\u73ed\u7684\u8def\u4e0a\u3002\n\n   S    interruptible sleep (waiting for an event to complete) TASK_INTERRUPTIBLE,\u53ef\u4e2d\u65ad\u7761\u7720\u6001\u3002\u4e0d\u540c\u4e8eD\uff0c\u8fd9\u79cd\u72b6\u6001\u7684\u8fdb\u7a0b\u867d\u7136\u4e5f\u5904\u4e8e\u7761\u7720\u4e2d\uff0c\u4f46\u662f\u662f\u5141\u8bb8\u88ab\u4e2d\u65ad\u7684\u3002\u8fd9\u79cd\u8fdb\u7a0b\u4e00\u822c\u5728\u7b49\u5f85\u67d0\u4e8b\u4ef6\u7684\u53d1\u751f\uff08\u6bd4\u5982socket\u8fde\u63a5\u3001\u4fe1\u53f7\u91cf\u7b49\uff09\uff0c\u800c\u88ab\u6302\u8d77\u3002\u4e00\u65e6\u8fd9\u4e9b\u4e8b\u4ef6\u5b8c\u6210\uff0c\u8fdb\u7a0b\u5c06\u88ab\u5524\u9192\u8f6c\u4e3aR\u6001\u3002\u5982\u679c\u4e0d\u5728\u9ad8\u8d1f\u8f7d\u65f6\u671f\uff0c\u7cfb\u7edf\u4e2d\u5927\u90e8\u5206\u8fdb\u7a0b\u90fd\u5904\u4e8eS\u6001\u3002SLEEP\u6001\u8fdb\u7a0b\u4e0d\u4f1a\u5360\u7528\u4efb\u4f55CPU\u8d44\u6e90\u3002\n\n   T    stopped by job control signal __TASK_STOPPED,\u6682\u505c\u6001\u3002\u6682\u505c\u6001\u4e00\u822c\u7531\u4e8e\u6536\u5230SIGSTOP\u3001SIGTSTP\u3001SIGTTIN\u3001SIGTTOUT\u56db\u79cd\u4fe1\u53f7\u88ab\u505c\u6b62\u3002\u6682\u505c\u6001\u8fdb\u7a0b\u4f1a\u91ca\u653e\u6240\u6709\u5360\u7528\u8d44\u6e90\u3002\n   t    stopped by debugger during the tracing __TASK_TRACED,\u8ddf\u8e2a\u6001\u3002\u8fdb\u7a0b\u5904\u4e8e\u8fd0\u884c\u505c\u6b62\u7684\u72b6\u6001\u3002\u8ddf\u8e2a\u6001\u662f\u7531\u4e8e\u8fdb\u7a0b\u88ab\u53e6\u4e00\u4e2a\u8fdb\u7a0b\u8ddf\u8e2a\u5f15\u8d77(\u6bd4\u5982gdb\u65ad\u70b9\uff09\u3002\u6682\u505c\u6001\u8fdb\u7a0b\u4f1a\u91ca\u653e\u6240\u6709\u5360\u7528\u8d44\u6e90\u3002\n\n   X    dead (should never be seen) EXIT_DEAD,\u6b7b\u4ea1\u6001\u3002\u8fdb\u7a0b\u7684\u771f\u6b63\u7ed3\u675f\u6001\uff0c\u8fd9\u79cd\u72b6\u6001\u4e00\u822c\u5728\u6b63\u5e38\u7cfb\u7edf\u4e2d\u6355\u83b7\u4e0d\u5230\u3002\n\n   Z    defunct (\"zombie\") process, terminated but not reaped by its parent EXIT_ZOMBIE,\u50f5\u5c38\u6001\u3002\u8fd9\u79cd\u72b6\u6001\u7684\u8fdb\u7a0b\u5b9e\u9645\u4e0a\u5df2\u7ecf\u7ed3\u675f\u4e86\uff0c\u4f46\u662f\u7236\u8fdb\u7a0b\u8fd8\u6ca1\u6709\u56de\u6536\u5b83\u7684\u8d44\u6e90\uff08\u6bd4\u5982\u8fdb\u7a0b\u7684\u63cf\u8ff0\u7b26\u3001PID\u7b49\uff09\u3002\u50f5\u5c38\u6001\u8fdb\u7a0b\u4f1a\u91ca\u653e\u9664\u8fdb\u7a0b\u5165\u53e3\u4e4b\u5916\u7684\u6240\u6709\u8d44\u6e90\u3002\n...<\/code><\/pre>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#ff0000\" class=\"has-inline-color\">SLEEP\u6001\u8fdb\u7a0b\u4e0d\u4f1a\u5360\u7528\u4efb\u4f55CPU\u8d44\u6e90\u3002<\/mark><\/strong><\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Linux\u7cfb\u7edf\u7684load\u8ba1\u7b97\u65b9\u6cd5<\/h5>\n\n\n\n<p>\u4ee5\u4e0b\u4e3aLinux\u5185\u6838\u6e90\u7801\u4e2dLoad Average\u8ba1\u7b97\u65b9\u6cd5\u2014\u2014\u9664\u4e86\u53ef\u6267\u884c\u6001\u8fdb\u7a0b\uff0c\u4e0d\u53ef\u4e2d\u65ad\u7761\u7720\u6001\u8fdb\u7a0b\u4e5f\u4f1a\u88ab\u4e00\u8d77\u7eb3\u5165\u8ba1\u7b97\uff0c\u5373\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>LoadAverage = calc_load(TASK_RUNNING + TASK_UNINTERRUPTIBLE, n)<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762 Linux\u8fdb\u7a0b\u72b6\u6001 \u4e2d\u6709\u63d0\u5230\u8fc7\uff0c\u4e0d\u53ef\u4e2d\u65ad\u7761\u7720\u6001\u7684\u8fdb\u7a0b(TASK_UNINTERRUPTIBLE)\u4e00\u822c\u90fd\u5728\u8fdb\u884cI\/O\u7b49\u5f85\uff0c\u6bd4\u5982\u78c1\u76d8\u3001\u7f51\u7edc\u6216\u8005\u5176\u4ed6\u5916\u8bbe\u7b49\u5f85\u3002\u7531\u6b64\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\uff0c<strong>Linux\u7cfb\u7edf\u7684load\u5728Linux\u4e2d\u4f53\u73b0\u7684\u662f\u7cfb\u7edf\u6574\u4f53\u8d1f\u8f7d\uff0c\u5373CPU\u8d1f\u8f7d + Disk\u8d1f\u8f7d + \u7f51\u7edc\u8d1f\u8f7d + \u5176\u4f59\u5916\u8bbe\u8d1f\u8f7d\uff0c\u5e76\u4e0d\u5b8c\u5168\u7b49\u540c\u4e8eCPU\u4f7f\u7528\u7387(\u8fd9\u79cd\u60c5\u51b5\u53ea\u51fa\u73b0\u5728Linux\u4e2d\uff0c\u5176\u4f59\u7cfb\u7edf\u6bd4\u5982Unix\uff0cLoad\u8fd8\u662f\u53ea\u4ee3\u8868CPU\u8d1f\u8f7d)\uff0c\u800c\u4e14\u4e00\u822c\u662f\u4f1a\u9ad8\u4e8eCPU\u4f7f\u7528\u7387\u7684\uff0c\u56e0\u4e3a\u591a\u5305\u542b\u4e86I\/O\u7b49\u5f85\u7b49\u8fdb\u7a0b\u3002<\/strong>\u4e5f\u5c31\u5bfc\u81f4\u4e86\u5b58\u5728load\u5f88\u9ad8\uff0c\u4f46\u662fCPU\u4f7f\u7528\u7387\u5e76\u4e0d\u9ad8\u7684\u60c5\u51b5\u2014\u2014\u4e00\u822c\u662f\u5361\u5728\u4e86I\/O\u90a3\u91cc\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">CPU\u4f7f\u7528\u7387<\/h5>\n\n\n\n<p>CPU\u7684\u65f6\u95f4\u5206\u7247\u4e00\u822c\u53ef\u5206\u4e3a4\u5927\u7c7b\uff1a\u7528\u6237\u8fdb\u7a0b\u8fd0\u884c\u65f6\u95f4 &#8211; UserTime, \u7cfb\u7edf\u5185\u6838\u8fd0\u884c\u65f6\u95f4 &#8211; SystemTime, \u7a7a\u95f2\u65f6\u95f4 &#8211; IdleTime, \u88ab\u62a2\u5360\u65f6\u95f4 &#8211; StealTime\u3002\u9664\u4e86IdleTime\u5916\uff0c\u5176\u4f59\u65f6\u95f4CPU\u90fd\u5904\u4e8e\u5de5\u4f5c\u8fd0\u884c\u72b6\u6001\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ixyzero.com\/blog\/wp-content\/uploads\/2022\/11\/cpu_capacity.png\" alt=\"\" class=\"wp-image-5365\" width=\"475\" height=\"409\" srcset=\"https:\/\/ixyzero.com\/wp-content\/uploads\/2022\/11\/cpu_capacity.png 950w, https:\/\/ixyzero.com\/wp-content\/uploads\/2022\/11\/cpu_capacity-300x258.png 300w, https:\/\/ixyzero.com\/wp-content\/uploads\/2022\/11\/cpu_capacity-768x661.png 768w\" sizes=\"auto, (max-width: 475px) 100vw, 475px\" \/><\/figure>\n\n\n\n<p><strong>\u901a\u5e38\u800c\u8a00\uff0c\u6211\u4eec\u6cdb\u6307\u7684\u6574\u4f53CPU\u4f7f\u7528\u7387\u4e3a UserTime \u548c SystemTime \u5360\u6bd4\u4e4b\u548c(\u4f8b\u5982tsar\u4e2dCPU util)<\/strong>\uff0c\u5373\uff1a<\/p>\n\n\n\n<p>CPUutil = (UserTime + SystemTime) \/ (UserTime + SystemTime + IdleTime + StealTime)<\/p>\n\n\n\n<p>\u4e3a\u4e86\u4fbf\u4e8e\u5b9a\u4f4d\u95ee\u9898\uff0c\u5927\u591a\u6570\u6027\u80fd\u7edf\u8ba1\u5de5\u5177\u90fd\u5c06\u8fd94\u7c7b\u65f6\u95f4\u7247\u8fdb\u4e00\u6b65\u7ec6\u5316\u6210\u4e868\u7c7b\uff0c\u5982\u4e0b\u4e3atop\u547d\u4ee4\u5bf9CPU\u65f6\u95f4\u7247\u7684\u5206\u7c7b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ man top\n...\nAs a default, percentages for these individual categories are displayed.  Where two labels are shown below, those for more recent kernel versions are shown first.\n\n   us, user    : \u7528\u6237\u8fdb\u7a0b\u7a7a\u95f4\u4e2d\u672a\u6539\u53d8\u8fc7\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u5360\u7528CPU\u767e\u5206\u6bd4(time running un-niced user processes)\n\n   sy, system  : \u5185\u6838\u7a7a\u95f4\u5360\u7528CPU\u767e\u5206\u6bd4(time running kernel processes)\n\n   ni, nice    : \u7528\u6237\u8fdb\u7a0b\u7a7a\u95f4\u5185\u6539\u53d8\u8fc7\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u5360\u7528CPU\u767e\u5206\u6bd4(time running niced user processes)\n\n   id, idle    : \u7a7a\u95f2\u65f6\u95f4\u767e\u5206\u6bd4(time spent in the kernel idle handler)\n\n   wa, IO-wait : \u7a7a\u95f2&amp;\u7b49\u5f85I\/O\u7684\u65f6\u95f4\u767e\u5206\u6bd4(time waiting for I\/O completion)\n\n   hi : \u786c\u4e2d\u65ad\u65f6\u95f4\u767e\u5206\u6bd4(time spent servicing hardware interrupts)\n\n   si : \u8f6f\u4e2d\u65ad\u65f6\u95f4\u767e\u5206\u6bd4(time spent servicing software interrupts)\n\n   st : \u865a\u62df\u5316\u65f6\u88ab\u5176\u4f59VM\u7a83\u53d6\u65f6\u95f4\u767e\u5206\u6bd4(time stolen from this vm by the hypervisor)\n...<\/code><\/pre>\n\n\n\n<p><strong>\u8fd98\u7c7b\u5206\u7247\u4e2d\uff0c\u9664 wa \u548c id \u5916\uff0c\u5176\u4f59\u5206\u7247CPU\u90fd\u5904\u4e8e\u5de5\u4f5c\u6001\u3002<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u8d44\u6e90&amp;\u74f6\u9888\u5206\u6790<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"622\" src=\"https:\/\/ixyzero.com\/blog\/wp-content\/uploads\/2022\/11\/cpu_load_relationship-1024x622.png\" alt=\"\" class=\"wp-image-5366\" srcset=\"https:\/\/ixyzero.com\/wp-content\/uploads\/2022\/11\/cpu_load_relationship-1024x622.png 1024w, https:\/\/ixyzero.com\/wp-content\/uploads\/2022\/11\/cpu_load_relationship-300x182.png 300w, https:\/\/ixyzero.com\/wp-content\/uploads\/2022\/11\/cpu_load_relationship-768x466.png 768w, https:\/\/ixyzero.com\/wp-content\/uploads\/2022\/11\/cpu_load_relationship.png 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h5 class=\"wp-block-heading\">Load\u9ad8 &amp; CPU\u9ad8<\/h5>\n\n\n\n<p>\u8fd9\u662f\u6211\u4eec\u6700\u5e38\u9047\u5230\u7684\u4e00\u7c7b\u60c5\u51b5\uff0c\u5373load\u4e0a\u6da8\u662fCPU\u4f7f\u7528\u7387\u4e0a\u5347\u5bfc\u81f4\u3002\u6839\u636eCPU\u5177\u4f53\u8d44\u6e90\u5206\u914d\u8868\u73b0\uff0c\u53ef\u5206\u4e3a\u4ee5\u4e0b\u51e0\u7c7b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>CPU sys\u9ad8<\/li><\/ol>\n\n\n\n<p>\u8fd9\u79cd\u60c5\u51b5CPU\u4e3b\u8981\u5f00\u9500\u5728\u4e8e\u7cfb\u7edf\u5185\u6838\uff0c\u53ef\u8fdb\u4e00\u6b65\u67e5\u770b\u4e0a\u4e0b\u6587\u5207\u6362\u60c5\u51b5\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5982\u679c\u975e\u81ea\u613f\u4e0a\u4e0b\u6587\u5207\u6362\u8f83\u591a\uff0c\u8bf4\u660eCPU\u62a2\u5360\u8f83\u4e3a\u6fc0\u70c8\uff0c\u5927\u91cf\u8fdb\u7a0b\u7531\u4e8e\u65f6\u95f4\u7247\u5df2\u5230\u7b49\u539f\u56e0\uff0c\u88ab\u7cfb\u7edf\u5f3a\u5236\u8c03\u5ea6\uff0c\u8fdb\u800c\u53d1\u751f\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u3002<\/li><li>\u5982\u679c\u81ea\u613f\u4e0a\u4e0b\u6587\u5207\u6362\u8f83\u591a\uff0c\u8bf4\u660e\u53ef\u80fd\u5b58\u5728I\/O\u3001\u5185\u5b58\u7b49\u7cfb\u7edf\u8d44\u6e90\u74f6\u9888\uff0c\u5927\u91cf\u8fdb\u7a0b\u65e0\u6cd5\u83b7\u53d6\u6240\u9700\u8d44\u6e90\uff0c\u5bfc\u81f4\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u3002<\/li><\/ul>\n\n\n\n<p><strong>\u5982\u4f55\u5224\u65ad\u662f\u81ea\u613f\u7684\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u8fd8\u662f\u975e\u81ea\u613f\u7684\u4e0a\u4e0b\u6587\u5207\u6362\uff1f<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\"><li>CPU si\u9ad8<\/li><\/ol>\n\n\n\n<p>\u8fd9\u79cd\u60c5\u51b5CPU\u5927\u91cf\u6d88\u8017\u5728\u8f6f\u4e2d\u65ad\uff0c\u53ef\u8fdb\u4e00\u6b65\u67e5\u770b\u8f6f\u4e2d\u65ad\u7c7b\u578b\uff08cat \/proc\/softirqs\uff09\u3002\u4e00\u822c\u800c\u8a00\uff0c\u7f51\u7edcI\/O\u6216\u8005\u7ebf\u7a0b\u8c03\u5ea6\u5f15\u8d77\u8f6f\u4e2d\u65ad\u6700\u4e3a\u5e38\u89c1\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>NET_TX &amp; NET_RX\u3002NET_TX\u662f\u53d1\u9001\u7f51\u7edc\u6570\u636e\u5305\u7684\u8f6f\u4e2d\u65ad\uff0cNET_RX\u662f\u63a5\u6536\u7f51\u7edc\u6570\u636e\u5305\u7684\u8f6f\u4e2d\u65ad\uff0c\u8fd9\u4e24\u79cd\u7c7b\u578b\u7684\u8f6f\u4e2d\u65ad\u8f83\u9ad8\u65f6\uff0c\u7cfb\u7edf\u5b58\u5728\u7f51\u7edcI\/O\u74f6\u9888\u53ef\u80fd\u6027\u8f83\u5927\u3002<\/li><li>SCHED\u3002SCHED\u4e3a\u8fdb\u7a0b\u8c03\u5ea6\u4ee5\u53ca\u8d1f\u8f7d\u5747\u8861\u5f15\u8d77\u7684\u4e2d\u65ad\uff0c\u8fd9\u79cd\u4e2d\u65ad\u51fa\u73b0\u8f83\u591a\u65f6\uff0c\u7cfb\u7edf\u5b58\u5728\u8f83\u591a\u8fdb\u7a0b\u5207\u6362\uff0c\u4e00\u822c\u4e0e\u975e\u81ea\u613f\u4e0a\u4e0b\u6587\u5207\u6362\u9ad8\u540c\u65f6\u51fa\u73b0\uff0c\u53ef\u80fd\u5b58\u5728CPU\u74f6\u9888\u3002<\/li><\/ul>\n\n\n\n<ol class=\"wp-block-list\"><li>CPU us\u9ad8<\/li><\/ol>\n\n\n\n<p>\u8fd9\u79cd\u60c5\u51b5\u8bf4\u660e\u8d44\u6e90\u4e3b\u8981\u6d88\u8017\u5728\u5e94\u7528\u8fdb\u7a0b\uff0c\u53ef\u80fd\u5f15\u53d1\u7684\u539f\u56e0\u6709\u4ee5\u4e0b\u51e0\u7c7b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u6b7b\u5faa\u73af\u6216\u4ee3\u7801\u4e2d\u5b58\u5728CPU\u5bc6\u96c6\u8ba1\u7b97\u3002\u8fd9\u79cd\u60c5\u51b5\u591a\u6838CPU us\u4f1a\u540c\u65f6\u4e0a\u6da8\u3002<\/li><li>\u5185\u5b58\u95ee\u9898\uff0c\u5bfc\u81f4\u5927\u91cfFULLGC\uff0c\u963b\u585e\u7ebf\u7a0b\u3002\u8fd9\u79cd\u60c5\u51b5\u4e00\u822c\u53ea\u6709\u4e00\u6838CPU us\u4e0a\u6da8\u3002<\/li><li>\u8d44\u6e90\u7b49\u5f85\u9020\u6210\u7ebf\u7a0b\u6c60\u6ee1\uff0c\u8fde\u5e26\u5f15\u53d1CPU\u4e0a\u6da8\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u7ebf\u7a0b\u6c60\u6ee1\u7b49\u5f02\u5e38\u4f1a\u540c\u65f6\u51fa\u73b0\u3002<\/li><\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">Load\u9ad8 &amp; CPU\u4f4e<\/h5>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0);color:#ff0000\" class=\"has-inline-color\">\u8fd9\u79cd\u60c5\u51b5\u51fa\u73b0\u7684\u6839\u672c\u539f\u56e0\u5728\u4e8e\u4e0d\u53ef\u4e2d\u65ad\u7761\u7720\u6001(TASK_UNINTERRUPTIBLE)\u8fdb\u7a0b\u6570\u8f83\u591a\uff0c\u5373CPU\u8d1f\u8f7d\u4e0d\u9ad8\uff0c\u4f46I\/O\u8d1f\u8f7d\u8f83\u9ad8\u3002\u53ef\u8fdb\u4e00\u6b65\u5b9a\u4f4d\u662f\u78c1\u76d8I\/O\u8fd8\u662f\u7f51\u7edcI\/O\u5bfc\u81f4\u3002<\/mark><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">3. \u5177\u4f53\u6392\u67e5\u7b56\u7565<\/h4>\n\n\n\n<p>\u4ece\u95ee\u9898\u53d1\u73b0\u5230\u6700\u7ec8\u5b9a\u4f4d\uff0c\u57fa\u672c\u53ef\u5206\u4e3a\u56db\u4e2a\u9636\u6bb5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\u8d44\u6e90\u74f6\u9888\u5b9a\u4f4d<\/li><\/ol>\n\n\n\n<p>\u8fd9\u4e00\u9636\u6bb5\u901a\u8fc7\u5168\u5c40\u6027\u80fd\u68c0\u6d4b\u5de5\u5177\uff08top\u3001vmstat\u3001tsar\u3001\/proc\/softirqs\u3001\/proc\/interrupts\u3001iostat\u3001dstat\uff09\uff0c\u521d\u6b65\u5b9a\u4f4d\u8d44\u6e90\u6d88\u8017\u5f02\u5e38\u4f4d\u70b9\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\"><li>\u70ed\u70b9\u8fdb\u7a0b\u5b9a\u4f4d<\/li><\/ol>\n\n\n\n<p>\u5b9a\u4f4d\u5230\u8d44\u6e90\u74f6\u9888\u540e\uff0c\u53ef\u8fdb\u4e00\u6b65\u5206\u6790\u5177\u4f53\u8fdb\u7a0b\u8d44\u6e90\u6d88\u8017\u60c5\u51b5\uff08pidstat\u3001pidstat\u3001iotop\u3001ps\uff09\uff0c\u627e\u5230\u70ed\u70b9\u8fdb\u7a0b\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\"><li>\u7ebf\u7a0b&amp;\u8fdb\u7a0b\u5185\u90e8\u8d44\u6e90\u5b9a\u4f4d<\/li><\/ol>\n\n\n\n<p>\u627e\u5230\u5177\u4f53\u8fdb\u7a0b\u540e\uff0c\u53ef\u7ec6\u5316\u5206\u6790\u8fdb\u7a0b\u5185\u90e8\u8d44\u6e90\u5f00\u9500\u60c5\u51b5\uff08pidstat\u3001lsof\uff09\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\"><li>\u70ed\u70b9\u4e8b\u4ef6&amp;\u65b9\u6cd5\u5206\u6790<\/li><\/ol>\n\n\n\n<p>\u83b7\u53d6\u5230\u70ed\u70b9\u7ebf\u7a0b\u540e\uff0c\u6211\u4eec\u53ef\u7528trace\u6216\u8005dump\u5de5\u5177\uff0c\u5c06\u7ebf\u7a0b\u53cd\u5411\u5173\u8054\uff0c\u5c06\u95ee\u9898\u8303\u56f4\u5b9a\u4f4d\u5230\u5177\u4f53\u65b9\u6cd5&amp;\u5806\u6808\u3002<\/p>\n\n\n\n<p><strong>\u4f46\u5177\u4f53\u7684\u95ee\u9898\u6392\u67e5\u548c\u5b9a\u4f4d\u7ecf\u9a8c\u9700\u8981\u901a\u8fc7\u6848\u4f8b\u4e0d\u65ad\u8fdb\u884c\u79ef\u7d2f\uff0c\u53ea\u4e86\u89e3\u57fa\u672c\u6982\u5ff5\u548c\u77e5\u8bc6\u662f\u8fdc\u8fdc\u4e0d\u591f\u7684\uff0c\u8bb0\u5fc6\u4e5f\u4e0d\u6df1\u523b\uff0c\u6240\u4ee5\u6bcf\u4e00\u6b21\u95ee\u9898\u7684\u6392\u67e5\u90fd\u662f\u5b66\u4e60\u548c\u63d0\u9ad8\u7684\u673a\u4f1a\uff0c\u628a\u63e1\u4f4f\u4e86\u624d\u80fd\u6709\u8fdb\u6b65\u548c\u63d0\u9ad8\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h5 class=\"wp-block-heading\">top\u547d\u4ee4\u7684\u4e00\u4e9b\u4f7f\u7528\u7ecf\u9a8c\u5907\u5fd8\u5f55<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>1. \u6309\u5185\u5b58\u5360\u7528\u6392\u5e8f\u3001\u6309CPU\u4f7f\u7528\u7387\u6392\u5e8f\n2. \u67e5\u770b\u5404CPU\u7684\u4f7f\u7528\u7387\uff0c\u770b\u662f\u5426\u5b58\u5728\u4e0d\u5747\u8861\u7684\u60c5\u51b5\uff08\u5728top\u547d\u4ee4\u754c\u9762\u4e2d\u6309\u4e0b\u6570\u5b571\u5373\u53ef\u6253\u5f00\/\u5173\u95ed\uff09\n\n\u8fdb\u5165top\u547d\u4ee4\u7684\u754c\u9762\u4e4b\u540e\uff0c\u6309\u4e0b h \u952e\u5f39\u51fa\u5e2e\u52a9\u6587\u6863\uff0c\u4e0b\u9762\u6361\u51e0\u4e2a\u6700\u8fd1\u4e86\u89e3\u5230\u7684\u6709\u7528\u7684\u6307\u4ee4\u8bb0\u5f55\u4e00\u4e0b\n1\nf #\u6309\u4e0b\u4e4b\u540e\u4f1a\u8fdb\u5165\u5b57\u6bb5\u663e\u793a\u7ba1\u7406\u7684\u754c\u9762\uff0c\u4e0a\u4e0b\u952e\u7528\u4e8e\u5bfc\u822a\uff0cs\u7528\u4e8e\u6307\u5b9a\u6392\u5e8f\u7684\u952e\uff0cd\u7528\u4e8e\u663e\u793a\u6216\u4e0d\u663e\u793a\u5217\uff0cq\u7528\u4e8e\u56de\u5230\u4e3b\u754c\u9762\uff08\u9ed8\u8ba4\u662f\u6839\u636eCPU\u4f7f\u7528\u6392\u5e8f\uff0c\u4f46\u6709\u4e9b\u65f6\u5019\u9700\u8981\u6839\u636e\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u6392\u5e8f\uff0c\u8fd8\u662f\u5f88\u6709\u7528\u7684\uff09\nx #\u7528\u4e8e\u9ad8\u4eae\u663e\u793a\u5f53\u524d\u6392\u5e8f\u7684\u5217\nk #\u7528\u4e8e\u6740\u6389\u6307\u5b9a\u4efb\u52a1\uff0c\u952e\u5165k\u4e4b\u540e\u4f1a\u63d0\u793a\u4f60\u8f93\u5165pid\uff0c\u9ed8\u8ba4\u662f\u5f53\u524d\u6392\u7b2c\u4e00\u7684pid\uff0c\uff08Send pid xxx signal &#91;15\/sigterm]\uff09\nL #\u7528\u4e8e\u8fdb\u884c\u4efb\u52a1\u5b9a\u4f4d\uff0c\u6839\u636e\u8f93\u5165\u5b57\u7b26\u4e32\u8fdb\u884c\u67e5\u627e\uff08\u4f46\u662f\u5b9e\u9645\u4f7f\u7528\u8fd8\u662f\u5efa\u8bae\u5148\u9000\u51fa\u53bb\uff09\n\nHelp for Interactive Commands - procps-ng version 3.3.10\nWindow 1:Def: Cumulative mode Off.  System: Delay 3.0 secs; Secure mode Off.\n\n  Z,B,E,e   Global: 'Z' colors; 'B' bold; 'E'\/'e' summary\/task memory scale\n  l,t,m     Toggle Summary: 'l' load avg; 't' task\/cpu stats; 'm' memory info\n  0,1,2,3,I Toggle: '0' zeros; '1\/2\/3' cpus or numa node views; 'I' Irix mode\n  f,F,X     Fields: 'f'\/'F' add\/remove\/order\/sort; 'X' increase fixed-width\n\n  L,&amp;,&lt;,&gt; . Locate: 'L'\/'&amp;' find\/again; Move sort column: '&lt;'\/'&gt;' left\/right\n  R,H,V,J . Toggle: 'R' Sort; 'H' Threads; 'V' Forest view; 'J' Num justify\n  c,i,S,j . Toggle: 'c' Cmd name\/line; 'i' Idle; 'S' Time; 'j' Str justify\n  x,y     . Toggle highlights: 'x' sort field; 'y' running tasks\n  z,b     . Toggle: 'z' color\/mono; 'b' bold\/reverse (only if 'x' or 'y')\n  u,U,o,O . Filter by: 'u'\/'U' effective\/any user; 'o'\/'O' other criteria\n  n,#,^O  . Set: 'n'\/'#' max tasks displayed; Show: Ctrl+'O' other filter(s)\n  C,...   . Toggle scroll coordinates msg for: up,down,left,right,home,end\n\n  k,r       Manipulate tasks: 'k' kill; 'r' renice\n  d or s    Set update interval\n  W,Y       Write configuration file 'W'; Inspect other output 'Y'\n  q         Quit\n          ( commands shown with '.' require a visible task display window )\nPress 'h' or '?' for help with Windows,\nType 'q' or &lt;Esc&gt; to continue<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u53c2\u8003\u94fe\u63a5\uff1a<\/h5>\n\n\n\n<p>CPU\u98d9\u9ad8\uff0c\u7cfb\u7edf\u6027\u80fd\u95ee\u9898\u5982\u4f55\u6392\u67e5\uff1f #nice<br><a href=\"https:\/\/mp.weixin.qq.com\/s\/fzLcAkYwKhj-9hgoVkTzaw\">https:\/\/mp.weixin.qq.com\/s\/fzLcAkYwKhj-9hgoVkTzaw<\/a><\/p>\n\n\n\n<p>\u4e00\u6587\u5e26\u4f60\u5168\u9762\u4e86\u89e3 Load Average \uff08\u8d1f\u8f7d\uff09 #nice<br><a href=\"https:\/\/mp.weixin.qq.com\/s\/qqimEIOKjMJe7DHyXT09fA\">https:\/\/mp.weixin.qq.com\/s\/qqimEIOKjMJe7DHyXT09fA<\/a><\/p>\n\n\n\n<p>Linux Load Averages: Solving the Mystery<br><a href=\"http:\/\/www.brendangregg.com\/blog\/2017-08-08\/linux-load-averages.html\">http:\/\/www.brendangregg.com\/blog\/2017-08-08\/linux-load-averages.html<\/a><\/p>\n\n\n\n<p>What exactly is a load average?<br><a href=\"http:\/\/linuxtechsupport.blogspot.com\/2008\/10\/what-exactly-is-load-average.html\">http:\/\/linuxtechsupport.blogspot.com\/2008\/10\/what-exactly-is-load-average.html<\/a><\/p>\n\n\n\n<p>\u5bf9cpu\u4e0eload\u7684\u7406\u89e3\u53ca\u7ebf\u4e0a\u95ee\u9898\u5904\u7406\u601d\u8def\u89e3\u8bfb<br><a href=\"https:\/\/mp.weixin.qq.com\/s\/ENGcqDABD9TLD6gjM0Jegw\">https:\/\/mp.weixin.qq.com\/s\/ENGcqDABD9TLD6gjM0Jegw<\/a><\/p>\n\n\n\n<p>\u3010Linux\u8d1f\u8f7d\u7cfb\u5217-1\u3011Linux \u7cfb\u7edf\u7684\u5e73\u5747\u8d1f\u8f7d\uff08Load Avarage\uff09<br><a href=\"https:\/\/www.ebpf.top\/post\/linux_load_avg\/\">https:\/\/www.ebpf.top\/post\/linux_load_avg\/<\/a><\/p>\n\n\n\n<p>How to display <code>top<\/code> results sorted by memory usage in real time?<br><a href=\"https:\/\/unix.stackexchange.com\/questions\/128953\/how-to-display-top-results-sorted-by-memory-usage-in-real-time\">https:\/\/unix.stackexchange.com\/questions\/128953\/how-to-display-top-results-sorted-by-memory-usage-in-real-time<\/a><\/p>\n\n\n\n<p>=END=<\/p>\n","protected":false},"excerpt":{"rendered":"<p>=Start= \u7f18\u7531\uff1a \u524d\u6bb5\u65f6\u95f4\u56e0\u4e3a\u90e8\u5206\u5de5\u4f5c\u5185\u5bb9\u6d89\u53ca\u5230Linux\u7cfb\u7edf\u7684CPU\u3001\u5185\u5b58\u8d44\u6e90\u5360\u7528\u5206\u6790\uff0c\u6240\u4ee5\u7b80\u8981\u56de\u987e\u4e86 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,11,7],"tags":[30,578,296,1882,1883,1885,1884],"class_list":["post-5364","post","type-post","status-publish","format-standard","hentry","category-knowledgebase-2","category-linux","category-programing","tag-linux","tag-load","tag-ps","tag-task_running","tag-task_uninterruptible","tag-1885","tag-1884"],"views":2773,"_links":{"self":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/5364","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/comments?post=5364"}],"version-history":[{"count":1,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/5364\/revisions"}],"predecessor-version":[{"id":5367,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/5364\/revisions\/5367"}],"wp:attachment":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/media?parent=5364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/categories?post=5364"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/tags?post=5364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}