{"id":2641,"date":"2017-08-27T09:17:38","date_gmt":"2017-08-27T01:17:38","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=2641"},"modified":"2017-08-27T09:17:38","modified_gmt":"2017-08-27T01:17:38","slug":"psutil%e7%b3%bb%e7%bb%9f%e7%b3%bb%e8%83%bd%e4%bf%a1%e6%81%af%e6%a8%a1%e5%9d%97","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/psutil%e7%b3%bb%e7%bb%9f%e7%b3%bb%e8%83%bd%e4%bf%a1%e6%81%af%e6%a8%a1%e5%9d%97\/","title":{"rendered":"psutil(\u7cfb\u7edf\u7cfb\u80fd\u4fe1\u606f\u6a21\u5757)"},"content":{"rendered":"<p>psutil\u662f\u4e00\u4e2a\u8de8\u5e73\u53f0\uff0c\u80fd\u591f\u8f7b\u677e\u5b9e\u73b0\u83b7\u53d6\u7cfb\u7edf\u8fd0\u884c\u7684\u8fdb\u7a0b\u548c\u5229\u7528\u7387(\u5305\u62ecCPU\u3001\u5185\u5b58\u3001\u78c1\u76d8\u3001\u7f51\u7edc\u7b49)\u4fe1\u606f\u3002\u4e3b\u8981\u5e94\u7528\u57df\u7cfb\u7edf\u76d1\u63a7\uff0c\u5206\u6790\u548c\u9650\u5236\u7cfb\u7edf\u8d44\u6e90\u53ca\u8fdb\u7a0b\u7ba1\u7406\u3002\u5b83\u5b9e\u73b0\u4e86\u540c\u7b49\u547d\u4ee4\u884c\u5de5\u5177\u63d0\u4f9b\u7684\u529f\u80fd\uff0c\u5982ps\/top\/lsof\/netstat\/who\/df\/kill\/nice\/free\/nice\/ionstat\/iotop\/uptime\/pidof\/tty\/taskset\/pmap\u7b49\u3002\u652f\u6301\u4ece2.4\u52303.4\u7684python\u7248\u672c\u3002<\/p>\n<p>psutil\u5927\u5c0f\u5355\u4f4d\u4e00\u822c\u90fd\u91c7\u7528\u5b57\u8282\u3002<\/p>\n<p>\u5b89\u88c5psutil<\/p>\n<div>\n<div id=\"highlighter_588312\" class=\"syntaxhighlighter  bash\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"gutter\">\n<div class=\"line number1 index0 alt2\">1<\/div>\n<div class=\"line number2 index1 alt1\">2<\/div>\n<div class=\"line number3 index2 alt2\">3<\/div>\n<div class=\"line number4 index3 alt1\">4<\/div>\n<div class=\"line number5 index4 alt2\">5<\/div>\n<\/td>\n<td class=\"code\">\n<div class=\"container\">\n<div class=\"line number1 index0 alt2\"><code class=\"bash plain\">wget\u00a0https:<\/code><code class=\"bash plain\">\/\/pypi<\/code><code class=\"bash plain\">.python.org<\/code><code class=\"bash plain\">\/packages\/source\/p\/psutil\/psutil-2<\/code><code class=\"bash plain\">.0.0.<\/code><code class=\"bash functions\">tar<\/code><code class=\"bash plain\">.gz\u00a0--no-check-certificate<\/code><\/div>\n<div class=\"line number2 index1 alt1\"><code class=\"bash functions\">tar<\/code>\u00a0<code class=\"bash plain\">-xzvf\u00a0psutil-2.0.0.<\/code><code class=\"bash functions\">tar<\/code><code class=\"bash plain\">.gz<\/code><\/div>\n<div class=\"line number3 index2 alt2\"><code class=\"bash functions\">cd<\/code>\u00a0<code class=\"bash plain\">psutil-2.0.0<\/code><\/div>\n<div class=\"line number4 index3 alt1\"><code class=\"bash plain\">python\u00a0setup.py\u00a0<\/code><code class=\"bash functions\">install<\/code>\u00a0\u00a0\u00a0<code class=\"bash comments\">#psutil\/_psutil_linux.c:12:20:\u00a0\u81f4\u547d\u9519\u8bef\uff1aPython.h\uff1a\u6ca1\u6709\u90a3\u4e2a\u6587\u4ef6\u6216\u76ee\u5f55<\/code><\/div>\n<div class=\"line number5 index4 alt2\"><code class=\"bash plain\">yum\u00a0<\/code><code class=\"bash functions\">install<\/code>\u00a0<code class=\"bash plain\">python-devel.x86_64<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>1\u3001cpu\u4fe1\u606f<\/p>\n<p>linux\u64cd\u4f5c\u7cfb\u7edf\u7684CPU\u5229\u7528\u7387\u6709\u4ee5\u4e0b\u51e0\u4e2a\u90e8\u5206\uff1a<\/p>\n<p>user time\uff0c\u6267\u884c\u7528\u62a4\u8fdb\u7a0b\u7684\u65f6\u95f4\u767e\u5206\u6bd4<\/p>\n<p>system time\uff0c\u6267\u884c\u5185\u6838\u8fdb\u7a0b\u548c\u4e2d\u4f0f\u6848\u7684\u65f6\u95f4\u767e\u5206\u6bd4<\/p>\n<p>wait io\uff0c\u7531\u4e8eIO\u7b49\u5f85\u800c\u4f7fCPU\u5904\u4e8eidle(\u7a7a\u95f2)\u72b6\u6001\u7684\u65f6\u95f4\u767e\u5206\u6bd4\uff1b<\/p>\n<p>Idle\uff0cCPU\u5904\u4e8eidle\u72b6\u6001\u7684\u65f6\u95f4\u767e\u5206\u6bd4<\/p>\n<p>\u6211\u4eec\u4f7f\u7528python\u7684psutil.cpu_times()\u65b9\u6cd5\u53ef\u4ee5\u975e\u5e38\u7b80\u5355\u5730\u5f97\u5230\u8fd9\u4e9b\u4fe1\u606f\uff0c\u540c\u4e8b\u4e5f\u53ef\u4ee5\u83b7\u53d6CPU\u7684\u786c\u4ef6\u76f8\u5173\u4fe1\u606f\uff0c\u6bd4\u5982CPU\u7684\u786c\u4ef6\u76f8\u5173\u4fe1\u606f\uff0c\u6bd4\u5982CPU\u7684\u7269\u7406\u4e2a\u6570\u57df\u903b\u8f91\u4e2a\u6570\u3002<\/p>\n<div>\n<div id=\"highlighter_604061\" class=\"syntaxhighlighter  python\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"gutter\">\n<div class=\"line number1 index0 alt2\">1<\/div>\n<div class=\"line number2 index1 alt1\">2<\/div>\n<div class=\"line number3 index2 alt2\">3<\/div>\n<div class=\"line number4 index3 alt1\">4<\/div>\n<div class=\"line number5 index4 alt2\">5<\/div>\n<div class=\"line number6 index5 alt1\">6<\/div>\n<div class=\"line number7 index6 alt2\">7<\/div>\n<div class=\"line number8 index7 alt1\">8<\/div>\n<\/td>\n<td class=\"code\">\n<div class=\"container\">\n<div class=\"line number1 index0 alt2\"><code class=\"python plain\">&gt;&gt;&gt;\u00a0psutil.cpu_times()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u67e5\u770bcpu\u6240\u6709\u4fe1\u606f<\/code><\/div>\n<div class=\"line number2 index1 alt1\"><code class=\"python plain\">scputimes(user<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">762.76<\/code><code class=\"python plain\">,\u00a0nice<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">4.47<\/code><code class=\"python plain\">,\u00a0system<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">428.97<\/code><code class=\"python plain\">,\u00a0idle<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">4012472.08<\/code><code class=\"python plain\">,\u00a0iowait<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">207.27<\/code><code class=\"python plain\">,\u00a0irq<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">0.0<\/code><code class=\"python plain\">,\u00a0softirq<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">7.07<\/code><code class=\"python plain\">,\u00a0steal<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">0.0<\/code><code class=\"python plain\">,\u00a0guest<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">0.0<\/code><code class=\"python plain\">,\u00a0guest_nice<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">0.0<\/code><code class=\"python plain\">)<\/code><\/div>\n<div class=\"line number3 index2 alt2\"><code class=\"python plain\">&gt;&gt;&gt;\u00a0psutil.cpu_times().user\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u67e5\u770b\u7528\u6237\u7684cpu\u65f6\u95f4\u6bd4<\/code><\/div>\n<div class=\"line number4 index3 alt1\"><code class=\"python value\">762.77<\/code><\/div>\n<div class=\"line number5 index4 alt2\"><code class=\"python plain\">&gt;&gt;&gt;\u00a0psutil.cpu_count()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u67e5\u770bcpu\u903b\u8f91\u4e2a\u6570<\/code><\/div>\n<div class=\"line number6 index5 alt1\"><code class=\"python value\">2<\/code><\/div>\n<div class=\"line number7 index6 alt2\"><code class=\"python plain\">&gt;&gt;&gt;\u00a0psutil.cpu_count(logical<\/code><code class=\"python keyword\">=<\/code><code class=\"python color1\">False<\/code><code class=\"python plain\">)\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u67e5\u770bcpu\u7269\u7406\u4e2a\u6570<\/code><\/div>\n<div class=\"line number8 index7 alt1\"><code class=\"python value\">2<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>2\u3001\u5185\u5b58\u4fe1\u606f<\/p>\n<p>linux\u7cfb\u7edf\u7684\u5185\u5b58\u5229\u7528\u7387\u4fe1\u606f\u6d89\u53catotal(\u5185\u5b58\u603b\u6570)\u3001used(\u5df2\u4f7f\u7528\u7684\u5185\u5b58\u6570)\u3001free(\u7a7a\u95f2\u5185\u5b58\u6570)\u3001buffers(\u7f13\u51b2\u4f7f\u7528\u6570)\u3001cache(\u7f13\u5b58\u4f7f\u7528\u6570)\u3001swap(\u4ea4\u6362\u5206\u533a\u4f7f\u7528\u6570)\u7b49\u3002\u5206\u522b\u4f7f\u7528psutil.virtual_memory()\u4e0epsutil.swap_memory()\u65b9\u6cd5\u83b7\u53d6\u8fd9\u4e9b\u4fe1\u606f\u3002<\/p>\n<div>\n<div id=\"highlighter_290854\" class=\"syntaxhighlighter  python\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"gutter\">\n<div class=\"line number1 index0 alt2\">1<\/div>\n<div class=\"line number2 index1 alt1\">2<\/div>\n<div class=\"line number3 index2 alt2\">3<\/div>\n<div class=\"line number4 index3 alt1\">4<\/div>\n<div class=\"line number5 index4 alt2\">5<\/div>\n<div class=\"line number6 index5 alt1\">6<\/div>\n<div class=\"line number7 index6 alt2\">7<\/div>\n<div class=\"line number8 index7 alt1\">8<\/div>\n<div class=\"line number9 index8 alt2\">9<\/div>\n<div class=\"line number10 index9 alt1\">10<\/div>\n<div class=\"line number11 index10 alt2\">11<\/div>\n<\/td>\n<td class=\"code\">\n<div class=\"container\">\n<div class=\"line number1 index0 alt2\"><code class=\"python plain\">&gt;&gt;&gt;\u00a0<\/code><code class=\"python keyword\">import<\/code>\u00a0<code class=\"python plain\">psutil<\/code><\/div>\n<div class=\"line number2 index1 alt1\"><code class=\"python plain\">&gt;&gt;&gt;\u00a0mem\u00a0<\/code><code class=\"python keyword\">=<\/code>\u00a0<code class=\"python plain\">psutil.virtual_memory()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u4f7f\u7528psutil.virtual_memory\u65b9\u6cd5\u83b7\u53d6\u5185\u5b58\u5b8c\u6574\u4fe1\u606f<\/code><\/div>\n<div class=\"line number3 index2 alt2\"><code class=\"python plain\">&gt;&gt;&gt;\u00a0mem<\/code><\/div>\n<div class=\"line number4 index3 alt1\"><code class=\"python plain\">svmem(total<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">3975487488L<\/code><code class=\"python plain\">,\u00a0available<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">2716561408L<\/code><code class=\"python plain\">,\u00a0percent<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">31.7<\/code><code class=\"python plain\">,\u00a0used<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">2024685568L<\/code><code class=\"python plain\">,\u00a0free<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">1950801920L<\/code><code class=\"python plain\">,\u00a0active<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">1328680960<\/code><code class=\"python plain\">,\u00a0inactive<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">484872192<\/code><code class=\"python plain\">,\u00a0buffers<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">1433600L<\/code><code class=\"python plain\">,\u00a0cached<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">764325888<\/code><code class=\"python plain\">)<\/code><\/div>\n<div class=\"line number5 index4 alt2\"><code class=\"python plain\">&gt;&gt;&gt;\u00a0mem.total\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u83b7\u53d6\u5185\u5b58\u603b\u6570<\/code><\/div>\n<div class=\"line number6 index5 alt1\"><code class=\"python value\">3975487488L<\/code><\/div>\n<div class=\"line number7 index6 alt2\"><code class=\"python plain\">&gt;&gt;&gt;\u00a0mem.free\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u83b7\u53d6\u7a7a\u95f2\u5185\u5b58<\/code><\/div>\n<div class=\"line number8 index7 alt1\"><code class=\"python value\">1950801920L<\/code><\/div>\n<div class=\"line number9 index8 alt2\"><code class=\"python plain\">&gt;&gt;&gt;\u00a0psutil.swap_memory()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u83b7\u53d6SWAP\u5206\u533a\u4fe1\u606f<\/code><\/div>\n<div class=\"line number10 index9 alt1\"><code class=\"python plain\">sswap(total<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">1073737728L<\/code><code class=\"python plain\">,\u00a0used<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">0L<\/code><code class=\"python plain\">,\u00a0free<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">1073737728L<\/code><code class=\"python plain\">,\u00a0percent<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">0.0<\/code><code class=\"python plain\">,\u00a0sin<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">0<\/code><code class=\"python plain\">,\u00a0sout<\/code><code class=\"python keyword\">=<\/code><code class=\"python value\">0<\/code><code class=\"python plain\">)<\/code><\/div>\n<div class=\"line number11 index10 alt2\"><code class=\"python plain\">&gt;&gt;&gt;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>3\u3001\u78c1\u76d8\u4fe1\u606f<\/p>\n<p>\u78c1\u76d8\u5229\u7528\u7387\u4f7f\u7528psutil.disk_usage\u65b9\u6cd5\u83b7\u53d6\uff0c<\/p>\n<p>\u78c1\u76d8IO\u4fe1\u606f\u5305\u62ecread_count(\u8bfbIO\u6570)\uff0cwrite_count(\u5199IO\u6570)\uff0cread_bytes(IO\u5199\u5b57\u8282\u6570)\uff0cread_time(\u78c1\u76d8\u8bfb\u65f6\u95f4)\uff0cwrite_time(\u78c1\u76d8\u5199\u65f6\u95f4),\u8fd9\u4e9bIO\u4fe1\u606f\u7528psutil_io_counters()\u83b7\u53d6\u3002<\/p>\n<div>\n<div id=\"highlighter_288853\" class=\"syntaxhighlighter  python\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"gutter\">\n<div class=\"line number1 index0 alt2\">1<\/div>\n<div class=\"line number2 index1 alt1\">2<\/div>\n<div class=\"line number3 index2 alt2\">3<\/div>\n<div class=\"line number4 index3 alt1\">4<\/div>\n<\/td>\n<td class=\"code\">\n<div class=\"container\">\n<div class=\"line number1 index0 alt2\"><code class=\"python plain\">psutil.disk_io_counters()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u83b7\u53d6\u78c1\u76d8\u603b\u7684IO\u4e2a\u6570<\/code><\/div>\n<div class=\"line number2 index1 alt1\"><code class=\"python plain\">psutil.disk_partitions()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u83b7\u53d6\u78c1\u76d8\u7684\u5b8c\u6574\u4fe1\u606f<\/code><\/div>\n<div class=\"line number3 index2 alt2\"><code class=\"python plain\">psutil.disk_usage(<\/code><code class=\"python string\">'\/'<\/code><code class=\"python plain\">)\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u83b7\u53d6\/\u5206\u533a\uff08\u53c2\u6570\uff09\u7684\u4f7f\u7528\u72b6\u6001<\/code><\/div>\n<div class=\"line number4 index3 alt1\"><code class=\"python plain\">psutil.disk_io_counters(perdisk<\/code><code class=\"python keyword\">=<\/code><code class=\"python color1\">True<\/code><code class=\"python plain\">)\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#perdisk=True\u53c2\u6570\u83b7\u53d6\u5355\u4e2a\u5206\u533aIO\u4e2a\u6570\u3001\u8bfb\u5199\u4fe1\u606f<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>4\u3001\u8bfb\u53d6\u7f51\u7edc\u4fe1\u606f<\/p>\n<p>\u7f51\u7edc\u4fe1\u606f\u4e0e\u78c1\u76d8IO\u4fe1\u606f\u7c7b\u4f3c,\u6d89\u53ca\u5230\u51e0\u4e2a\u5173\u952e\u70b9\uff0c\u5305\u62ecbyes_sent(\u53d1\u9001\u5b57\u8282\u6570),byte_recv=xxx(\u63a5\u53d7\u5b57\u8282\u6570),pack-ets_sent=xxx(\u53d1\u9001\u5b57\u8282\u6570),pack-ets_recv=xxx(\u63a5\u6536\u6570\u636e\u5305\u6570),\u8fd9\u4e9b\u7f51\u7edc\u4fe1\u606f\u7528psutil.net_io_counters()\u65b9\u6cd5\u83b7\u53d6\u3002<\/p>\n<div>\n<div id=\"highlighter_212994\" class=\"syntaxhighlighter  python\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"gutter\">\n<div class=\"line number1 index0 alt2\">1<\/div>\n<div class=\"line number2 index1 alt1\">2<\/div>\n<\/td>\n<td class=\"code\">\n<div class=\"container\">\n<div class=\"line number1 index0 alt2\"><code class=\"python plain\">psutil.net_io_counters()\u00a0\u00a0<\/code><code class=\"python comments\">#\u83b7\u53d6\u7f51\u7edc\u603bIO\u4fe1\u606f<\/code><\/div>\n<div class=\"line number2 index1 alt1\"><code class=\"python plain\">psutil.net_io_counters(pernic<\/code><code class=\"python keyword\">=<\/code><code class=\"python color1\">True<\/code><code class=\"python plain\">)\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#pernic=True\u8f93\u51fa\u6bcf\u4e2a\u7f51\u7edc\u63a5\u53e3\u7684IO\u4fe1\u606f<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>5\u3001\u83b7\u53d6\u5f53\u524d\u7cfb\u7edf\u7528\u6237\u767b\u5f55\u4fe1\u606f<\/p>\n<div>\n<div id=\"highlighter_221777\" class=\"syntaxhighlighter  python\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"gutter\">\n<div class=\"line number1 index0 alt2\">1<\/div>\n<div class=\"line number2 index1 alt1\">2<\/div>\n<div class=\"line number3 index2 alt2\">3<\/div>\n<div class=\"line number4 index3 alt1\">4<\/div>\n<\/td>\n<td class=\"code\">\n<div class=\"container\">\n<div class=\"line number1 index0 alt2\"><code class=\"python plain\">psutil.users()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u83b7\u53d6\u5f53\u524d\u767b\u5f55\u7cfb\u7edf\u7684\u7528\u6237\u4fe1\u606f<\/code><\/div>\n<div class=\"line number2 index1 alt1\"><code class=\"python keyword\">import<\/code>\u00a0<code class=\"python plain\">psutil,datetime<\/code><\/div>\n<div class=\"line number3 index2 alt2\"><code class=\"python plain\">psutil.boot_time()\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u83b7\u53d6\u5f00\u673a\u65f6\u95f4\uff0c\u4ee5linux\u65f6\u95f4\u683c\u5f0f\u8fd4\u56de<\/code><\/div>\n<div class=\"line number4 index3 alt1\"><code class=\"python plain\">datetime.datetime.fromtimestamp(psutil.boot_time\u00a0()).strftime(<\/code><code class=\"python string\">\"%Y-%m-%d\u00a0%H:\u00a0%M:\u00a0%S\"<\/code><code class=\"python plain\">)\u00a0<\/code><code class=\"python comments\">#\u8f6c\u6362\u6210\u81ea\u7136\u65f6\u95f4\u683c\u5f0f<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>6\u3001\u7cfb\u7edf\u8fdb\u7a0b\u7ba1\u7406\u65b9\u6cd5<\/p>\n<p>\u83b7\u53d6\u5f53\u524d\u7cfb\u7edf\u7684\u8fdb\u7a0b\u4fe1\u606f,\u83b7\u53d6\u5f53\u524d\u7a0b\u5e8f\u7684\u8fd0\u884c\u72b6\u6001,\u5305\u62ec\u8fdb\u7a0b\u7684\u542f\u52a8\u65f6\u95f4,\u67e5\u770b\u8bbe\u7f6eCPU\u4eb2\u548c\u5ea6,\u5185\u5b58\u4f7f\u7528\u7387,IO\u4fe1\u606f\u3001socket\u8fde\u63a5\u3001\u7ebf\u7a0b\u6570\u7b49\u3002<\/p>\n<p>\uff081\uff09\u83b7\u53d6\u8fdb\u7a0b\u4fe1\u606f<\/p>\n<p>\u67e5\u770b\u7cfb\u7edf\u5168\u90e8\u8fdb\u7a0b<\/p>\n<p>&nbsp;<\/p>\n<div>\n<div id=\"highlighter_491097\" class=\"syntaxhighlighter  python\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"gutter\">\n<div class=\"line number1 index0 alt2\">1<\/div>\n<div class=\"line number2 index1 alt1\">2<\/div>\n<div class=\"line number3 index2 alt2\">3<\/div>\n<div class=\"line number4 index3 alt1\">4<\/div>\n<div class=\"line number5 index4 alt2\">5<\/div>\n<div class=\"line number6 index5 alt1\">6<\/div>\n<div class=\"line number7 index6 alt2\">7<\/div>\n<div class=\"line number8 index7 alt1\">8<\/div>\n<div class=\"line number9 index8 alt2\">9<\/div>\n<div class=\"line number10 index9 alt1\">10<\/div>\n<div class=\"line number11 index10 alt2\">11<\/div>\n<div class=\"line number12 index11 alt1\">12<\/div>\n<div class=\"line number13 index12 alt2\">13<\/div>\n<div class=\"line number14 index13 alt1\">14<\/div>\n<div class=\"line number15 index14 alt2\">15<\/div>\n<div class=\"line number16 index15 alt1\">16<\/div>\n<\/td>\n<td class=\"code\">\n<div class=\"container\">\n<div class=\"line number1 index0 alt2\"><code class=\"python plain\">psutil.pids()\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u5217\u51fa\u6240\u6709\u8fdb\u7a0bID<\/code><\/div>\n<div class=\"line number2 index1 alt1\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p\u00a0<\/code><code class=\"python keyword\">=<\/code>\u00a0<code class=\"python plain\">psutil.Process(<\/code><code class=\"python value\">2423<\/code><code class=\"python plain\">)\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u5b9e\u4f8b\u5316\u4e00\u4e2aprocess\u5bf9\u8c61\uff0c\u53c2\u6570\u4e3a\u4e00\u8fdb\u7a0bPID<\/code><\/div>\n<div class=\"line number3 index2 alt2\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p.name()\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u8fdb\u7a0b\u540d<\/code><\/div>\n<div class=\"line number4 index3 alt1\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p.exe()\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u8fdb\u7a0b\u7684bin\u8def\u5f84<\/code><\/div>\n<div class=\"line number5 index4 alt2\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p.cwd()\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u8fdb\u7a0b\u7684\u5de5\u4f5c\u76ee\u5f55\u7edd\u5bf9\u8def\u5f84<\/code><\/div>\n<div class=\"line number6 index5 alt1\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p.status()\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u8fdb\u7a0b\u72b6\u6001<\/code><\/div>\n<div class=\"line number7 index6 alt2\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p.create_time()\u00a0\u00a0<\/code><code class=\"python comments\">#\u8fdb\u7a0b\u521b\u5efa\u65f6\u95f4<\/code><\/div>\n<div class=\"line number8 index7 alt1\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p.uids()\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u8fdb\u7a0buid\u4fe1\u606f<\/code><\/div>\n<div class=\"line number9 index8 alt2\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p.gids()\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u8fdb\u7a0b\u7684gid\u4fe1\u606f<\/code><\/div>\n<div class=\"line number10 index9 alt1\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p.cpu_times()\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u8fdb\u7a0b\u7684cpu\u65f6\u95f4\u4fe1\u606f,\u5305\u62ecuser,system\u4e24\u4e2acpu\u4fe1\u606f<\/code><\/div>\n<div class=\"line number11 index10 alt2\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p.cpu_affinity()\u00a0\u00a0<\/code><code class=\"python comments\">#get\u8fdb\u7a0bcpu\u4eb2\u548c\u5ea6,\u5982\u679c\u8981\u8bbe\u7f6ecpu\u4eb2\u548c\u5ea6,\u5c06cpu\u53f7\u4f5c\u4e3a\u53c2\u8003\u5c31\u597d<\/code><\/div>\n<div class=\"line number12 index11 alt1\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p.memory_percent()\u00a0\u00a0<\/code><code class=\"python comments\">#\u8fdb\u7a0b\u5185\u5b58\u5229\u7528\u7387<\/code><\/div>\n<div class=\"line number13 index12 alt2\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p.memory_info()\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u8fdb\u7a0b\u5185\u5b58rss,vms\u4fe1\u606f<\/code><\/div>\n<div class=\"line number14 index13 alt1\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p.io_counters()\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u8fdb\u7a0b\u7684IO\u4fe1\u606f,\u5305\u62ec\u8bfb\u5199IO\u6570\u5b57\u53ca\u53c2\u6570<\/code><\/div>\n<div class=\"line number15 index14 alt2\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p.connectios()\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u8fd4\u56de\u8fdb\u7a0b\u5217\u8868<\/code><\/div>\n<div class=\"line number16 index15 alt1\"><code class=\"python spaces\">\u00a0<\/code><code class=\"python plain\">p.num_threads()\u00a0\u00a0<\/code><code class=\"python comments\">#\u8fdb\u7a0b\u5f00\u542f\u7684\u7ebf\u7a0b\u6570<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>\uff082\uff09psutil\u7684Popen\u7c7b\u542f\u52a8\u5e94\u7528\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u8ddf\u8e2a\u7a0b\u5e8f\u7684\u76f8\u5173\u4fe1\u606f<\/p>\n<div>\n<div id=\"highlighter_134802\" class=\"syntaxhighlighter  python\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"gutter\">\n<div class=\"line number1 index0 alt2\">1<\/div>\n<div class=\"line number2 index1 alt1\">2<\/div>\n<div class=\"line number3 index2 alt2\">3<\/div>\n<div class=\"line number4 index3 alt1\">4<\/div>\n<div class=\"line number5 index4 alt2\">5<\/div>\n<div class=\"line number6 index5 alt1\">6<\/div>\n<\/td>\n<td class=\"code\">\n<div class=\"container\">\n<div class=\"line number1 index0 alt2\"><code class=\"python keyword\">from<\/code>\u00a0<code class=\"python plain\">subprocess\u00a0<\/code><code class=\"python keyword\">import<\/code>\u00a0<code class=\"python plain\">PIPE<\/code><\/div>\n<div class=\"line number2 index1 alt1\"><code class=\"python plain\">p\u00a0<\/code><code class=\"python keyword\">=<\/code>\u00a0<code class=\"python plain\">psutil.Popen([<\/code><code class=\"python string\">\"\/usr\/bin\/python\"<\/code><code class=\"python plain\">,\u00a0<\/code><code class=\"python string\">\"-c\"<\/code><code class=\"python plain\">,\u00a0<\/code><code class=\"python string\">\"print('hello')\"<\/code><code class=\"python plain\">],stdout<\/code><code class=\"python keyword\">=<\/code><code class=\"python plain\">PIPE)<\/code><\/div>\n<div class=\"line number3 index2 alt2\"><code class=\"python plain\">p.name()<\/code><\/div>\n<div class=\"line number4 index3 alt1\"><code class=\"python plain\">p.username()<\/code><\/div>\n<div class=\"line number5 index4 alt2\"><code class=\"python plain\">p.communicate()<\/code><\/div>\n<div class=\"line number6 index5 alt1\"><code class=\"python plain\">p.cpu_times()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><code class=\"python comments\">#\u5f97\u5230\u8fdb\u7a0b\u8fd0\u884c\u7684CPU\u65f6\u95f4<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>psutil\u662f\u4e00\u4e2a\u8de8\u5e73\u53f0\uff0c\u80fd\u591f\u8f7b\u677e\u5b9e\u73b0\u83b7\u53d6\u7cfb\u7edf\u8fd0\u884c\u7684\u8fdb\u7a0b\u548c\u5229\u7528\u7387(\u5305\u62ecCPU\u3001\u5185\u5b58\u3001\u78c1\u76d8\u3001\u7f51\u7edc\u7b49)\u4fe1\u606f\u3002\u4e3b\u8981\u5e94 &#8230; <a title=\"psutil(\u7cfb\u7edf\u7cfb\u80fd\u4fe1\u606f\u6a21\u5757)\" class=\"read-more\" href=\"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/psutil%e7%b3%bb%e7%bb%9f%e7%b3%bb%e8%83%bd%e4%bf%a1%e6%81%af%e6%a8%a1%e5%9d%97\/\" aria-label=\"\u9605\u8bfb psutil(\u7cfb\u7edf\u7cfb\u80fd\u4fe1\u606f\u6a21\u5757)\">\u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[49],"tags":[38,770],"class_list":["post-2641","post","type-post","status-publish","format-standard","hentry","category-linux","tag-linux","tag-psutil"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2641","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=2641"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2641\/revisions"}],"predecessor-version":[{"id":2642,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2641\/revisions\/2642"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=2641"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=2641"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=2641"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}