{"id":586,"date":"2019-03-08T00:39:44","date_gmt":"2019-03-08T00:39:44","guid":{"rendered":"http:\/\/www.liutianfeng.com\/?p=586"},"modified":"2019-03-08T00:41:25","modified_gmt":"2019-03-08T00:41:25","slug":"%e8%bf%9b%e7%a8%8b%e5%8d%a0%e7%94%a8%e9%ab%98%e7%9a%84%e5%a4%84%e7%90%86%e6%80%9d%e8%b7%af","status":"publish","type":"post","link":"https:\/\/www.liutianfeng.com\/?p=586","title":{"rendered":"\u8fdb\u7a0b\u5360\u7528\u9ad8\u7684\u5904\u7406\u601d\u8def"},"content":{"rendered":"<h3>1. \u9996\u5148\u83b7\u53d6\u8fdb\u7a0bpid\uff1a<\/h3>\n<p>top &#8211;&gt;<\/p>\n<p>1) \u5982\u82e5\u8981\u83b7\u53d6cpu\u5360\u7528\u9ad8\u7684, \u70b9\u51fbc, \u67e5\u770b\u7b2c\u4e00\u5217\u7684PID;<\/p>\n<p>2) \u5982\u82e5\u8981\u83b7\u53d6mem\u5360\u7528\u9ad8\u7684, \u70b9\u51fbm, \u67e5\u770b\u7b2c\u4e00\u5217\u7684PID;<\/p>\n<h3>2. \u67e5\u770b\u8be5\u8fdb\u7a0b\u6240\u5360\u7528\u7684\u6587\u4ef6\u53e5\u67c4\u6570\uff1a<\/h3>\n<p>\u5355\u4e2a\u8fdb\u7a0b\u5360\u7528\u7684\u6587\u4ef6\u53e5\u67c4\u6570\u5927\u5c0f\uff0c\u9700\u8981\u77e5\u9053\u8fdb\u7a0b\u7684pid\uff0c\u7136\u540e\u5728\/pro\u76ee\u5f55\u67e5\u770b\uff1a<\/p>\n<pre class=\"pure-highlightjs\"><code class=\"\">ls \/proc\/1644\/fd 2&gt;\/dev\/null |wc -l<\/code><\/pre>\n<p>\u9875\u9762\u5e95\u5c42\uff0c\u6ce8\u67e5\u770b\u5f53\u524d\u6240\u6709\u8fdb\u7a0b\u6587\u4ef6\u53e5\u67c4\u6570\u4ee5\u53ca\u603b\u548c\u7684\u811a\u672c.<\/p>\n<p><strong>\u7cfb\u7edf\u914d\u7f6e\u7684\u6587\u4ef6\u53e5\u67c4\u6570\u9650\u5236\uff1a<\/strong><\/p>\n<p>\u5176\u4e2dopen files\u8868\u793a\u7684\u662f\u5355\u4e2a\u8fdb\u7a0b\u6700\u591a\u5141\u8bb8\u6253\u5f00\u7684\u6587\u4ef6\u53e5\u67c4\u6570\uff08soket\u8fde\u63a5\u6570\u4e5f\u7b97\u5728\u5185\uff09\uff0c\u9ed8\u8ba4\u503c\u662f1024\u3002\u5bf9\u4e8e\u4e00\u822c\u7684\u7a0b\u5e8f\u6765\u8bf4\uff0c\u8fd9\u4e2a\u503c\u662f\u8db3\u591f\u7684\uff0c\u4f46\u662f\u5bf9\u4e8e\u5f88\u591a\u9700\u8981\u6253\u5f00\u5927\u91cf\u6587\u4ef6\u6216\u8005\u5927\u91cfsocket\u8fde\u63a5\u7684\u7a0b\u5e8f\u6765\u8bf4\uff0c\u8fd9\u4e2a\u503c\u5c31\u4e0d\u591f\u4e86\u3002<\/p>\n<p>\u4f8b\u5982web\u7aef\u7528\u4e8e\u5b58\u50a8\u7528\u6237\u767b\u5f55\u4fe1\u606f\u548c\u5e7f\u544a\u7f13\u5b58\u4fe1\u606f\u7684memcached\u7a0b\u5e8f\uff0c\u5355\u4e2a\u8fdb\u7a0b\u53ef\u4ee5\u6253\u5f00\u7684socket\u8fde\u63a5\u6570\u7ebf\u4e0a\u8bbe\u7f6e\u4e3a8192\u3002<\/p>\n<pre class=\"pure-highlightjs\"><code class=\"\"># ulimit -a\u00a0\u00a0 \/\/ \u6587\u4ef6\u5904\u7406\u5927\u7684\u670d\u52a1\u5668\uff0c\u8fd9\u4e2a\u6570\u91cf\u53ef\u80fd\u5f88\u5927\u3002\r\ncore file size\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (blocks, -c) 10485760\r\ndata seg size\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (kbytes, -d) 10485760\r\nscheduling priority\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (-e) 0\r\nfile size\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (blocks, -f) unlimited\r\npending signals\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (-i) 127942\r\nmax locked memory\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (kbytes, -l) 29493770\r\nmax memory size\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (kbytes, -m) unlimited\r\nopen files\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (-n) 1200000\u00a0\u00a0 \/\/ 120w\u4e2a\r\npipe size\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (512 bytes, -p) 8\r\nPOSIX message queues\u00a0\u00a0\u00a0\u00a0 (bytes, -q) 819200\r\nreal-time priority\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (-r) 0\r\nstack size\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (kbytes, -s) unlimited\r\ncpu time\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(seconds, -t) unlimited\r\nmax user processes\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (-u) 16384\r\nvirtual memory\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (kbytes, -v) unlimited\r\nfile locks\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (-x) unlimited<\/code><\/pre>\n<p>\u5982\u679c\u8d85\u51fa\u4e86\u8fd9\u4e2a\u9650\u5236\uff0c\u8fdb\u7a0b\u5c31\u4f1a\u51fa\u73b0\u5f02\u5e38\u3002<\/p>\n<h3>3. \u67e5\u770b\u6307\u5b9a\u8fdb\u7a0b\u7ebf\u7a0b\u6570<\/h3>\n<p>\u5982\u679c\u8fdb\u7a0b\u7684\u7ebf\u7a0b\u6570\u8fc7\u5927\uff0c\u8d44\u6e90\u5f88\u53ef\u80fd\u88ab\u8017\u5c3d\u3002<\/p>\n<pre class=\"pure-highlightjs\"><code class=\"\"># ps -o nlwp -p 27582 | tail -n1 | sed s\/[[:space:]]\/\/g<\/code><\/pre>\n<p>\u6ce8\uff1a-o nlwp\u663e\u793aNumber of threads, lwp\u663e\u793aThread ID\u3002<\/p>\n<pre class=\"pure-highlightjs\"><code class=\"\">&gt; ps -o nlwp -p 30960\r\nNLWP\r\n\u00a0\u00a0 1\r\n\r\n&gt; ps -o lwp -p 30960\r\n\u00a0 LWP\r\n30960<\/code><\/pre>\n<p><strong>\u67e5\u770b\u5f53\u524d\u6240\u6709\u8fdb\u7a0b\u6587\u4ef6\u53e5\u67c4\u6570\u4ee5\u53ca\u603b\u548c\u7684\u811a\u672c\uff1a<\/strong><\/p>\n<pre class=\"pure-highlightjs\"><code class=\"\">#!\/bin\/bash\r\n[ ! -d \/tmp\/lius.bak ] &amp;&amp; mkdir \/tmp\/lius.bak\r\ncd \/tmp\/lius.bak\r\n[ ! -e proc.list ] &amp;&amp; touch proc.list\r\nfind \/proc -maxdepth 1 -type d |grep \"[[:digit:]]\" &gt; proc.list\r\ndeclare int sum=0\r\ndeclare int pro_sum=0\r\nfor i in `cat proc.list`; do\r\n  pro_sum=`ls $i\/fd 2&gt; \/dev\/null |wc -l`\r\n  pro_pid=`echo $i |cut -d\/ -f3`\r\n  if [[ $pro_sum -ne 0 ]]; then\r\n    echo \"PID ${pro_pid}'s process number is: $pro_sum\"\r\n  fi\r\n  let sum+=$pro_sum\r\ndone\r\necho \"The sumary of all process is: $sum\"\r\n\r\n# .\/ulimiteNum.sh\r\nPID 1's process number is: 63\r\nPID 596's process number is: 42\r\nPID 608's process number is: 4\r\nPID 641's process number is: 14\r\nPID 1065's process number is: 32\r\nPID 1074's process number is: 8\r\nPID 1077's process number is: 8\r\nPID 1079's process number is: 8\r\nPID 1080's process number is: 8\r\nPID 1081's process number is: 19\r\nPID 1101's process number is: 18\r\nPID 1103's process number is: 11\r\nPID 1117's process number is: 20\r\nPID 1125's process number is: 4\r\nPID 1165's process number is: 10\r\nPID 1169's process number is: 10\r\nPID 1173's process number is: 7\r\nPID 1212's process number is: 8\r\nPID 1223's process number is: 16\r\nPID 1233's process number is: 22\r\nPID 1234's process number is: 8\r\nPID 1240's process number is: 11\r\nPID 1402's process number is: 10\r\nPID 1572's process number is: 15\r\nPID 1575's process number is: 7\r\nPID 1578's process number is: 13\r\nPID 1581's process number is: 6\r\nPID 1592's process number is: 16\r\nPID 1644's process number is: 5\r\nPID 1695's process number is: 11\r\nPID 1702's process number is: 11\r\nPID 1706's process number is: 9\r\nPID 1711's process number is: 88\r\nPID 1713's process number is: 14\r\nPID 1726's process number is: 5\r\nPID 1741's process number is: 18\r\nPID 1748's process number is: 8\r\nPID 1766's process number is: 30\r\nPID 1770's process number is: 31\r\nPID 1771's process number is: 7\r\nPID 1782's process number is: 7\r\nPID 22222's process number is: 12\r\nPID 22223's process number is: 13\r\nPID 22226's process number is: 15\r\nPID 22229's process number is: 7\r\nPID 22234's process number is: 4\r\nPID 23858's process number is: 5\r\nThe sumary of all process is: 718<\/code><\/pre>\n<p>&nbsp;<\/p>\n<p>\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1a<a href=\"https:\/\/www.liutianfeng.com\">liutianfeng.com<\/a> &raquo; <a href=\"https:\/\/www.liutianfeng.com\/?p=586\">\u8fdb\u7a0b\u5360\u7528\u9ad8\u7684\u5904\u7406\u601d\u8def<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>1. \u9996\u5148\u83b7\u53d6\u8fdb\u7a0bpid\uff1a top &#8211;&gt; 1) \u5982\u82e5\u8981\u83b7\u53d6cpu\u5360\u7528\u9ad8\u7684, \u70b9\u51fbc, \u67e5\u770b\u7b2c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts\/586"}],"collection":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=586"}],"version-history":[{"count":3,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts\/586\/revisions"}],"predecessor-version":[{"id":589,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts\/586\/revisions\/589"}],"wp:attachment":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}