{"id":5464,"date":"2021-01-04T23:37:42","date_gmt":"2021-01-04T15:37:42","guid":{"rendered":"http:\/\/39.97.231.10\/?p=5464"},"modified":"2021-01-04T23:37:42","modified_gmt":"2021-01-04T15:37:42","slug":"docker-%e4%b9%8b-cgroups-%e8%b5%84%e6%ba%90%e9%99%90%e5%88%b6","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=5464","title":{"rendered":"docker \u4e4b Cgroups \u8d44\u6e90\u9650\u5236"},"content":{"rendered":"<p data-nodeid=\\\"305218\\\" data-mpa-powered-by=\\\"yiban.io\\\">\u00a0Cgroups<\/p>\n<section>Cgroups\uff08\u5168\u79f0\uff1acontrol groups\uff09\u662f Linux \u5185\u6838\u7684\u4e00\u4e2a\u529f\u80fd\uff0c\u5b83\u53ef\u4ee5\u5b9e\u73b0\u9650\u5236\u8fdb\u7a0b\u6216\u8005\u8fdb\u7a0b\u7ec4\u7684\u8d44\u6e90\uff08\u5982 CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8 IO \u7b49\uff09\u3002<\/section>\n<blockquote data-nodeid=\\\"306376\\\">\n<p data-nodeid=\\\"306377\\\">\u5728 2006 \u5e74\uff0cGoogle \u7684\u5de5\u7a0b\u5e08\uff08 Rohit Seth \u548c Paul Menage \u4e3a\u4e3b\u8981\u53d1\u8d77\u4eba\uff09 \u53d1\u8d77\u4e86\u8fd9\u4e2a\u9879\u76ee\uff0c\u8d77\u521d\u9879\u76ee\u540d\u79f0\u5e76\u4e0d\u662fcgroups\uff0c\u800c\u88ab\u79f0\u4e3a\u8fdb\u7a0b\u5bb9\u5668\uff08process containers\uff09\u3002\u5728 2007 \u5e74cgroups\u4ee3\u7801\u8ba1\u5212\u5408\u5165Linux \u5185\u6838\uff0c\u4f46\u662f\u5f53\u65f6\u5728 Linux \u5185\u6838\u4e2d\uff0c\u5bb9\u5668\uff08container\uff09\u8fd9\u4e2a\u8bcd\u88ab\u5e7f\u6cdb\u4f7f\u7528\uff0c\u5e76\u4e14\u62e5\u6709\u4e0d\u540c\u7684\u542b\u4e49\u3002\u4e3a\u4e86\u907f\u514d\u547d\u540d\u6df7\u4e71\u548c\u6b67\u4e49\uff0c\u8fdb\u7a0b\u5bb9\u5668\u88ab\u91cd\u540d\u4e3acgroups\uff0c\u5e76\u5728 2008 \u5e74\u6210\u529f\u5408\u5165 Linux 2.6.24 \u7248\u672c\u4e2d\u3002cgroups\u76ee\u524d\u5df2\u7ecf\u6210\u4e3a systemd\u3001Docker\u3001Linux Containers\uff08LXC\uff09 \u7b49\u6280\u672f\u7684\u57fa\u7840\u3002<\/p>\n<\/blockquote>\n<h4 data-nodeid=\\\"306378\\\"><\/h4>\n<h4 data-nodeid=\\\"306378\\\">\u00a0Cgroups \u529f\u80fd\u53ca\u6838\u5fc3\u6982\u5ff5<\/h4>\n<p data-nodeid=\\\"305223\\\">Cgroups \u4e3b\u8981\u63d0\u4f9b\u4e86\u5982\u4e0b\u529f\u80fd:<\/p>\n<ul data-nodeid=\\\"305224\\\">\n<li>\n<p data-nodeid=\\\"305226\\\">\u8d44\u6e90\u9650\u5236\uff1a\u9650\u5236\u8d44\u6e90\u7684\u4f7f\u7528\u91cf\uff0c\u4f8b\u5982\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u9650\u5236\u67d0\u4e2a\u4e1a\u52a1\u7684\u5185\u5b58\u4e0a\u9650\uff0c\u4ece\u800c\u4fdd\u62a4\u4e3b\u673a\u5176\u4ed6\u4e1a\u52a1\u7684\u5b89\u5168\u8fd0\u884c\u3002<\/p>\n<\/li>\n<li>\n<p data-nodeid=\\\"305228\\\">\u4f18\u5148\u7ea7\u63a7\u5236\uff1a\u4e0d\u540c\u7684\u7ec4\u53ef\u4ee5\u6709\u4e0d\u540c\u7684\u8d44\u6e90\uff08 CPU \u3001\u78c1\u76d8 IO \u7b49\uff09\u4f7f\u7528\u4f18\u5148\u7ea7\u3002<\/p>\n<\/li>\n<li>\n<p data-nodeid=\\\"305230\\\">\u5ba1\u8ba1\uff1a\u8ba1\u7b97\u63a7\u5236\u7ec4\u7684\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\u3002<\/p>\n<\/li>\n<li>\n<p data-nodeid=\\\"305232\\\">\u63a7\u5236\uff1a\u63a7\u5236\u8fdb\u7a0b\u7684\u6302\u8d77\u6216\u6062\u590d\u3002<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\\\"305234\\\">cgroups\u529f\u80fd\u7684\u5b9e\u73b0\u4f9d\u8d56\u4e8e\u4e09\u4e2a\u6838\u5fc3\u6982\u5ff5\uff1a\u5b50\u7cfb\u7edf\u3001\u63a7\u5236\u7ec4\u3001\u5c42\u7ea7\u6811\u3002<\/p>\n<ul data-nodeid=\\\"305235\\\">\n<li>\n<p data-nodeid=\\\"305237\\\">\u5b50\u7cfb\u7edf\uff08subsystem\uff09\uff1a\u662f\u4e00\u4e2a\u5185\u6838\u7684\u7ec4\u4ef6\uff0c\u4e00\u4e2a\u5b50\u7cfb\u7edf\u4ee3\u8868\u4e00\u7c7b\u8d44\u6e90\u8c03\u5ea6\u63a7\u5236\u5668\u3002\u4f8b\u5982\u5185\u5b58\u5b50\u7cfb\u7edf\u53ef\u4ee5\u9650\u5236\u5185\u5b58\u7684\u4f7f\u7528\u91cf\uff0cCPU \u5b50\u7cfb\u7edf\u53ef\u4ee5\u9650\u5236 CPU \u7684\u4f7f\u7528\u65f6\u95f4\u3002<\/p>\n<\/li>\n<li>\n<p data-nodeid=\\\"305239\\\">\u63a7\u5236\u7ec4\uff08cgroup\uff09\uff1a\u8868\u793a\u4e00\u7ec4\u8fdb\u7a0b\u548c\u4e00\u7ec4\u5e26\u6709\u53c2\u6570\u7684\u5b50\u7cfb\u7edf\u7684\u5173\u8054\u5173\u7cfb\u3002\u4f8b\u5982\uff0c\u4e00\u4e2a\u8fdb\u7a0b\u4f7f\u7528\u4e86 CPU \u5b50\u7cfb\u7edf\u6765\u9650\u5236 CPU \u7684\u4f7f\u7528\u65f6\u95f4\uff0c\u5219\u8fd9\u4e2a\u8fdb\u7a0b\u548c CPU \u5b50\u7cfb\u7edf\u7684\u5173\u8054\u5173\u7cfb\u79f0\u4e3a\u63a7\u5236\u7ec4\u3002<\/p>\n<\/li>\n<li>\n<p data-nodeid=\\\"305241\\\">\u5c42\u7ea7\u6811\uff08hierarchy\uff09\uff1a\u662f\u7531\u4e00\u7cfb\u5217\u7684\u63a7\u5236\u7ec4\u6309\u7167\u6811\u72b6\u7ed3\u6784\u6392\u5217\u7ec4\u6210\u7684\u3002\u8fd9\u79cd\u6392\u5217\u65b9\u5f0f\u53ef\u4ee5\u4f7f\u5f97\u63a7\u5236\u7ec4\u62e5\u6709\u7236\u5b50\u5173\u7cfb\uff0c\u5b50\u63a7\u5236\u7ec4\u9ed8\u8ba4\u62e5\u6709\u7236\u63a7\u5236\u7ec4\u7684\u5c5e\u6027\uff0c\u4e5f\u5c31\u662f\u5b50\u63a7\u5236\u7ec4\u4f1a\u7ee7\u627f\u4e8e\u7236\u63a7\u5236\u7ec4\u3002\u6bd4\u5982\uff0c\u7cfb\u7edf\u4e2d\u5b9a\u4e49\u4e86\u4e00\u4e2a\u63a7\u5236\u7ec4 c1\uff0c\u9650\u5236\u4e86 CPU \u53ef\u4ee5\u4f7f\u7528 1 \u6838\uff0c\u7136\u540e\u53e6\u5916\u4e00\u4e2a\u63a7\u5236\u7ec4 c2 \u60f3\u5b9e\u73b0\u65e2\u9650\u5236 CPU \u4f7f\u7528 1 \u6838\uff0c\u540c\u65f6\u9650\u5236\u5185\u5b58\u4f7f\u7528 2G\uff0c\u90a3\u4e48 c2 \u5c31\u53ef\u4ee5\u76f4\u63a5\u7ee7\u627f c1\uff0c\u65e0\u987b\u91cd\u590d\u5b9a\u4e49 CPU \u9650\u5236\u3002<\/p>\n<\/li>\n<\/ul>\n<h3 data-nodeid=\\\"305243\\\">Cgroups \u5b50\u7cfb\u7edf\u793a\u4f8b<\/h3>\n<p>\u4e0b\u9762\u901a\u8fc7\u4e00\u4e2a\u5b9e\u4f8b\u6f14\u793a\u4e00\u4e0b\u5728 Linux \u4e0a\u9ed8\u8ba4\u90fd\u542f\u52a8\u4e86\u54ea\u4e9b\u5b50\u7cfb\u7edf\u3002<br \/>\n\u9996\u5148\u901a\u8fc7 mount \u547d\u4ee4\u67e5\u770b\u4e00\u4e0b\u5f53\u524d\u7cfb\u7edf\u5df2\u7ecf\u6302\u8f7d\u7684cgroups\u4fe1\u606f\uff1a<\/p>\n<section>\n<pre data-lang=\\\"typescript\\\">#  mount -t cgroup\ncgroup\u00a0on\u00a0\/sys\/fs\/cgroup\/systemd\u00a0type\u00a0cgroup\u00a0(rw,nosuid,nodev,noexec,relatime,seclabel,xattr,release_agent=\/usr\/lib\/systemd\/systemd-cgroups-agent,name=systemd)\ncgroup\u00a0on\u00a0\/sys\/fs\/cgroup\/net_cls,net_prio\u00a0type\u00a0cgroup\u00a0(rw,nosuid,nodev,noexec,relatime,seclabel,net_prio,net_cls)\ncgroup\u00a0on\u00a0\/sys\/fs\/cgroup\/blkio\u00a0type\u00a0cgroup\u00a0(rw,nosuid,nodev,noexec,relatime,seclabel,blkio)\ncgroup\u00a0on\u00a0\/sys\/fs\/cgroup\/pids\u00a0type\u00a0cgroup\u00a0(rw,nosuid,nodev,noexec,relatime,seclabel,pids)\ncgroup\u00a0on\u00a0\/sys\/fs\/cgroup\/cpu,cpuacct\u00a0type\u00a0cgroup\u00a0(rw,nosuid,nodev,noexec,relatime,seclabel,cpuacct,cpu)\ncgroup\u00a0on\u00a0\/sys\/fs\/cgroup\/perf_event\u00a0type\u00a0cgroup\u00a0(rw,nosuid,nodev,noexec,relatime,seclabel,perf_event)\ncgroup\u00a0on\u00a0\/sys\/fs\/cgroup\/freezer\u00a0type\u00a0cgroup\u00a0(rw,nosuid,nodev,noexec,relatime,seclabel,freezer)\ncgroup\u00a0on\u00a0\/sys\/fs\/cgroup\/devices\u00a0type\u00a0cgroup\u00a0(rw,nosuid,nodev,noexec,relatime,seclabel,devices)\ncgroup\u00a0on\u00a0\/sys\/fs\/cgroup\/memory\u00a0type\u00a0cgroup\u00a0(rw,nosuid,nodev,noexec,relatime,seclabel,memory)\ncgroup\u00a0on\u00a0\/sys\/fs\/cgroup\/cpuset\u00a0type\u00a0cgroup\u00a0(rw,nosuid,nodev,noexec,relatime,seclabel,cpuset)\ncgroup on \/sys\/fs\/cgroup\/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,hugetlb)<\/pre>\n<\/section>\n<blockquote data-nodeid=\\\"305247\\\">\n<p data-nodeid=\\\"305248\\\">\u64cd\u4f5c\u7cfb\u7edf\u7248\u672c\u4e3a CentOS7.8\uff0c\u5185\u6838\u4e3a 3.10.0-1127.el7.x86_64 \u7248\u672c\uff0c\u4e0d\u540c\u5185\u6838\u7248\u672ccgroups\u5b50\u7cfb\u7edf\u548c\u4f7f\u7528\u65b9\u5f0f\u53ef\u80fd\u7565\u6709\u5dee\u5f02\u3002\u5982\u679c\u4f60\u5bf9cgroups\u4e0d\u662f\u5f88\u719f\u6089\uff0c\u8bf7\u5c3d\u91cf\u4f7f\u7528\u4e0e\u6211\u76f8\u540c\u7684\u5185\u6838\u73af\u5883\u64cd\u4f5c\u3002<\/p>\n<\/blockquote>\n<section><\/section>\n<p>\u901a\u8fc7\u8f93\u51fa\uff0c\u53ef\u4ee5\u770b\u5230\u5f53\u524d\u7cfb\u7edf\u5df2\u7ecf\u6302\u8f7d\u4e86\u6211\u4eec\u5e38\u7528\u7684cgroups\u5b50\u7cfb\u7edf\uff0c\u4f8b\u5982 cpu\u3001memory\u3001pids \u7b49\u6211\u4eec\u5e38\u7528\u7684cgroups\u5b50\u7cfb\u7edf\u3002\u8fd9\u4e9b\u5b50\u7cfb\u7edf\u4e2d\uff0ccpu \u548c memory \u5b50\u7cfb\u7edf\u662f\u5bb9\u5668\u73af\u5883\u4e2d\u4f7f\u7528\u6700\u591a\u7684\u5b50\u7cfb\u7edf\uff0c\u4e0b\u9762\u5bf9\u8fd9\u4e24\u4e2a\u5b50\u7cfb\u7edf\u505a\u8be6\u7ec6\u4ecb\u7ecd\u3002<\/p>\n<section><\/section>\n<h4 data-nodeid=\\\"305250\\\">cpu \u5b50\u7cfb\u7edf<\/h4>\n<p>\u9996\u5148\u4ee5 cpu \u5b50\u7cfb\u7edf\u4e3a\u4f8b\uff0c\u6f14\u793a\u4e00\u4e0bcgroups\u5982\u4f55\u9650\u5236\u8fdb\u7a0b\u7684 cpu \u4f7f\u7528\u65f6\u95f4\u3002\u7531\u4e8ecgroups\u7684\u64cd\u4f5c\u5f88\u591a\u9700\u8981\u7528\u5230 root \u6743\u9650\uff0c\u6211\u4eec\u5728\u6267\u884c\u547d\u4ee4\u524d\u8981\u786e\u4fdd\u5df2\u7ecf\u5207\u6362\u5230\u4e86 root \u7528\u6237\uff0c\u4ee5\u4e0b\u547d\u4ee4\u7684\u6267\u884c\u9ed8\u8ba4\u90fd\u662f\u4f7f\u7528 root \u7528\u6237\u3002<\/p>\n<p data-nodeid=\\\"305252\\\">\u5728 cpu \u5b50\u7cfb\u7edf\u4e0b\u521b\u5efa cgroup<\/p>\n<p data-nodeid=\\\"305253\\\">cgroups\u7684\u521b\u5efa\u5f88\u7b80\u5355\uff0c\u53ea\u9700\u8981\u5728\u76f8\u5e94\u7684\u5b50\u7cfb\u7edf\u4e0b\u521b\u5efa\u76ee\u5f55\u5373\u53ef\u3002\u4e0b\u9762\u6211\u4eec\u5230 cpu \u5b50\u7cfb\u7edf\u4e0b\u521b\u5efa\u6d4b\u8bd5\u6587\u4ef6\u5939\uff1a<\/p>\n<section>\n<pre data-lang=\\\"apache\\\"># mkdir \/sys\/fs\/cgroup\/cpu\/mydocker<\/pre>\n<\/section>\n<p data-nodeid=\\\"305253\\\">\n\u6267\u884c\u5b8c\u4e0a\u8ff0\u547d\u4ee4\u540e\uff0c\u6211\u4eec\u67e5\u770b\u4e00\u4e0b\u6211\u4eec\u65b0\u521b\u5efa\u7684\u76ee\u5f55\u4e0b\u53d1\u751f\u4e86\u4ec0\u4e48\uff1f<\/p>\n<section>\n<pre data-lang=\\\"sql\\\"># ls -l \/sys\/fs\/cgroup\/cpu\/mydocker\ntotal 0\n-rw-r--r--. 1 root root 0 Sep  5 09:19 cgroup.clone_children\n--w--w--w-. 1 root root 0 Sep  5 09:19 cgroup.event_control\n-rw-r--r--. 1 root root 0 Sep  5 09:19 cgroup.procs\n-rw-r--r--. 1 root root 0 Sep  5 09:19 cpu.cfs_period_us\n-rw-r--r--. 1 root root 0 Sep  5 09:19 cpu.cfs_quota_us\n-rw-r--r--. 1 root root 0 Sep  5 09:19 cpu.rt_period_us\n-rw-r--r--. 1 root root 0 Sep  5 09:19 cpu.rt_runtime_us\n-rw-r--r--. 1 root root 0 Sep  5 09:19 cpu.shares\n-r--r--r--. 1 root root 0 Sep  5 09:19 cpu.stat\n-r--r--r--. 1 root root 0 Sep  5 09:19 cpuacct.stat\n-rw-r--r--. 1 root root 0 Sep  5 09:19 cpuacct.usage\n-r--r--r--. 1 root root 0 Sep  5 09:19 cpuacct.usage_percpu\n-rw-r--r--. 1 root root 0 Sep  5 09:19 notify_on_release\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a009:19\u00a0tasks<\/pre>\n<\/section>\n<section>\u7531\u4e0a\u53ef\u4ee5\u770b\u5230\u6211\u4eec\u65b0\u5efa\u7684\u76ee\u5f55\u4e0b\u88ab\u81ea\u52a8\u521b\u5efa\u4e86\u5f88\u591a\u6587\u4ef6\uff0c\u5176\u4e2d cpu.cfs_quota_us \u6587\u4ef6\u4ee3\u8868\u5728\u67d0\u4e00\u4e2a\u9636\u6bb5\u9650\u5236\u7684 CPU \u65f6\u95f4\u603b\u91cf\uff0c\u5355\u4f4d\u4e3a\u5fae\u79d2\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u60f3\u9650\u5236\u67d0\u4e2a\u8fdb\u7a0b\u6700\u591a\u4f7f\u7528 1 \u6838 CPU\uff0c\u5c31\u5728\u8fd9\u4e2a\u6587\u4ef6\u91cc\u5199\u5165 100000\uff08100000 \u4ee3\u8868\u9650\u5236 1 \u4e2a\u6838\uff09 \uff0ctasks \u6587\u4ef6\u4e2d\u5199\u5165\u8fdb\u7a0b\u7684 ID \u5373\u53ef\uff08\u5982\u679c\u8981\u9650\u5236\u591a\u4e2a\u8fdb\u7a0b ID\uff0c\u5728 tasks \u6587\u4ef6\u4e2d\u7528\u6362\u884c\u7b26\u5206\u9694\u5373\u53ef\uff09\u3002<\/section>\n<p data-nodeid=\\\"305259\\\">\u521b\u5efa\u8fdb\u7a0b\uff0c\u52a0\u5165 cgroup<\/p>\n<section>\u4e3a\u4e86\u65b9\u4fbf\u6f14\u793a\uff0c\u5148\u628a\u5f53\u524d\u8fd0\u884c\u7684 shell \u8fdb\u7a0b\u52a0\u5165 cgroup\uff0c\u7136\u540e\u5728\u5f53\u524d shell \u8fd0\u884c cpu \u8017\u65f6\u4efb\u52a1\uff08\u8fd9\u91cc\u5229\u7528\u5230\u4e86\u7ee7\u627f\uff0c\u5b50\u8fdb\u7a0b\u4f1a\u7ee7\u627f\u7236\u8fdb\u7a0b\u7684 cgroup\uff09\u3002<\/section>\n<section><\/section>\n<section>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5c06 shell \u8fdb\u7a0b\u52a0\u5165 cgroup \u4e2d\uff1a<\/section>\n<section>\n<pre data-lang=\\\"shell\\\">#\u00a0cd\u00a0\/sys\/fs\/cgroup\/cpu\/mydocker# echo $$ &gt; tasks<\/pre>\n<\/section>\n<section><\/section>\n<section>\u67e5\u770b\u4e00\u4e0b tasks \u6587\u4ef6\u5185\u5bb9\uff1a<\/section>\n<section>\n<pre data-lang=\\\"apache\\\">#\u00a0cat\u00a0tasks34853543<\/pre>\n<\/section>\n<section>\u5176\u4e2d\u7b2c\u4e00\u4e2a\u8fdb\u7a0b ID \u4e3a\u5f53\u524d shell \u7684\u4e3b\u8fdb\u7a0b\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5f53\u524d shell \u4e3b\u8fdb\u7a0b\u4e3a 3485\u3002<\/section>\n<section><\/section>\n<section>\u6267\u884c CPU \u8017\u65f6\u4efb\u52a1\uff0c\u9a8c\u8bc1 cgroup \u662f\u5426\u53ef\u4ee5\u9650\u5236 cpu \u4f7f\u7528\u65f6\u95f4<\/section>\n<section>\u4e0b\u9762\uff0c\u6211\u4eec\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5236\u9020\u4e00\u4e2a\u6b7b\u5faa\u73af\uff0c\u6765\u63d0\u5347 cpu \u4f7f\u7528\u7387\uff1a<\/section>\n<section>\n<pre data-lang=\\\"shell\\\"># while true;do echo;done;<\/pre>\n<\/section>\n<p data-nodeid=\\\"305268\\\">\u6267\u884c\u5b8c\u4e0a\u8ff0\u547d\u4ee4\u540e\uff0c\u6211\u4eec\u65b0\u6253\u5f00\u4e00\u4e2a shell \u7a97\u53e3\uff0c\u4f7f\u7528 top -p \u547d\u4ee4\u67e5\u770b\u5f53\u524d cpu \u4f7f\u7528\u7387\uff0c-p \u53c2\u6570\u540e\u9762\u8ddf\u8fdb\u7a0b ID\uff0c\u6211\u8fd9\u91cc\u662f 3485\u3002<\/p>\n<section>\n<pre data-lang=\\\"properties\\\"># top -p 3485\ntop\u00a0-\u00a009:51:35\u00a0up\u00a03\u00a0days,\u00a022:00,\u00a0\u00a04\u00a0users,\u00a0\u00a0load\u00a0average:\u00a01.59,\u00a00.58,\u00a00.27Tasks:\u00a0\u00a0\u00a01\u00a0total,\u00a0\u00a0\u00a00\u00a0running,\u00a0\u00a0\u00a01\u00a0sleeping,\u00a0\u00a0\u00a00\u00a0stopped,\u00a0\u00a0\u00a00\u00a0zombie%Cpu(s):\u00a0\u00a09.7\u00a0us,\u00a0\u00a02.8\u00a0sy,\u00a0\u00a00.0\u00a0ni,\u00a087.4\u00a0id,\u00a0\u00a00.0\u00a0wa,\u00a0\u00a00.0\u00a0hi,\u00a0\u00a00.0\u00a0si,\u00a0\u00a00.0\u00a0stKiB\u00a0Mem\u00a0:\u00a032779616\u00a0total,\u00a031009780\u00a0free,\u00a0\u00a0\u00a0495988\u00a0used,\u00a0\u00a01273848\u00a0buff\/cacheKiB\u00a0Swap:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a00\u00a0total,\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a00\u00a0free,\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a00\u00a0used.\u00a031852336\u00a0avail\u00a0MemPID\u00a0USER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0PR\u00a0\u00a0NI\u00a0\u00a0\u00a0\u00a0VIRT\u00a0\u00a0\u00a0\u00a0RES\u00a0\u00a0\u00a0\u00a0SHR\u00a0S\u00a0\u00a0%CPU\u00a0%MEM\u00a0\u00a0\u00a0\u00a0\u00a0TIME+\u00a0COMMAND3485 root      20   0  116336   2852   1688 S  99.7  0.0   2:10.71 bash<\/pre>\n<\/section>\n<section>\u901a\u8fc7\u4e0a\u9762\u8f93\u51fa\u53ef\u4ee5\u770b\u5230 3485 \u8fd9\u4e2a\u8fdb\u7a0b\u88ab\u9650\u5236\u5230\u4e86\u53ea\u80fd\u4f7f\u7528 100 % \u7684 cpu\uff0c\u4e5f\u5c31\u662f 1 \u4e2a\u6838\u3002\u8bf4\u660e\u6211\u4eec\u4f7f\u7528 cgroup \u6765\u9650\u5236 cpu \u4f7f\u7528\u65f6\u95f4\u5df2\u7ecf\u751f\u6548\u3002\u6b64\u65f6\uff0c\u6267\u884c while \u5faa\u73af\u7684\u547d\u4ee4\u884c\u7a97\u53e3\u53ef\u4ee5\u4f7f\u7528 Ctrl+c \u9000\u51fa\u5faa\u73af\u3002<\/section>\n<section><\/section>\n<section>\u4e3a\u4e86\u8fdb\u4e00\u6b65\u8bc1\u5b9e cgroup \u9650\u5236 cpu \u7684\u51c6\u786e\u6027\uff0c\u4fee\u6539 cpu \u9650\u5236\u65f6\u95f4\u4e3a 0.5 \u6838\uff0c\u547d\u4ee4\u5982\u4e0b\uff1a<\/section>\n<section>\n<pre data-lang=\\\"shell\\\">#\u00a0cd\u00a0\/sys\/fs\/cgroup\/cpu\/mydocker# echo 50000 &gt; cpu.cfs_quota_us<\/pre>\n<\/section>\n<p data-nodeid=\\\"305273\\\">\u540c\u6837\u4f7f\u7528\u4e0a\u9762\u7684\u547d\u4ee4\u6765\u5236\u9020\u6b7b\u5faa\u73af\uff1a<\/p>\n<section>\n<pre data-lang=\\\"shell\\\"># while true;do echo;done;<\/pre>\n<\/section>\n<p data-nodeid=\\\"305275\\\">\u4fdd\u6301\u5f53\u524d\u7a97\u53e3\uff0c\u65b0\u6253\u5f00\u4e00\u4e2a shell \u7a97\u53e3\uff0c\u4f7f\u7528 top -p \u53c2\u6570\u67e5\u770b cpu \u4f7f\u7528\u7387\uff1a<\/p>\n<section>\n<pre data-lang=\\\"properties\\\"># top -p 3485\ntop - 10:05:25 up 3 days, 22:14,  3 users,  load average: 1.02, 0.43, 0.40Tasks:\u00a0\u00a0\u00a01\u00a0total,\u00a0\u00a0\u00a01\u00a0running,\u00a0\u00a0\u00a00\u00a0sleeping,\u00a0\u00a0\u00a00\u00a0stopped,\u00a0\u00a0\u00a00\u00a0zombie%Cpu(s):\u00a0\u00a05.0\u00a0us,\u00a0\u00a01.3\u00a0sy,\u00a0\u00a00.0\u00a0ni,\u00a093.7\u00a0id,\u00a0\u00a00.0\u00a0wa,\u00a0\u00a00.0\u00a0hi,\u00a0\u00a00.0\u00a0si,\u00a0\u00a00.0\u00a0stKiB\u00a0Mem\u00a0:\u00a032779616\u00a0total,\u00a031055676\u00a0free,\u00a0\u00a0\u00a0450224\u00a0used,\u00a0\u00a01273716\u00a0buff\/cacheKiB\u00a0Swap:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a00\u00a0total,\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a00\u00a0free,\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a00\u00a0used.\u00a031898216\u00a0avail\u00a0MemPID\u00a0USER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0PR\u00a0\u00a0NI\u00a0\u00a0\u00a0\u00a0VIRT\u00a0\u00a0\u00a0\u00a0RES\u00a0\u00a0\u00a0\u00a0SHR\u00a0S\u00a0\u00a0%CPU\u00a0%MEM\u00a0\u00a0\u00a0\u00a0\u00a0TIME+\u00a0COMMAND 3485 root      20   0  115544   2116   1664 R  50.0  0.0   0:23.39 bash<\/pre>\n<\/section>\n<p data-nodeid=\\\"305277\\\">\u901a\u8fc7\u4e0a\u9762\u8f93\u51fa\u53ef\u4ee5\u770b\u5230\uff0c\u6b64\u65f6 cpu \u4f7f\u7528\u7387\u5df2\u7ecf\u88ab\u9650\u5236\u5230\u4e86 50%\uff0c\u5373 0.5 \u4e2a\u6838\u3002<\/p>\n<p data-nodeid=\\\"305277\\\">\n\u9a8c\u8bc1\u5b8c cgroup \u9650\u5236 cpu\uff0c\u6211\u4eec\u4f7f\u7528\u76f8\u4f3c\u7684\u65b9\u6cd5\u6765\u9a8c\u8bc1 cgroup \u5bf9\u5185\u5b58\u7684\u9650\u5236\u3002<\/p>\n<h4 data-nodeid=\\\"305278\\\"><\/h4>\n<h4 data-nodeid=\\\"305278\\\">memroy \u5b50\u7cfb\u7edf<\/h4>\n<p data-nodeid=\\\"305279\\\">\u5728 memory \u5b50\u7cfb\u7edf\u4e0b\u521b\u5efa cgroup<\/p>\n<section>\n<pre data-lang=\\\"apache\\\">#  mkdir \/sys\/fs\/cgroup\/memory\/mydocker<\/pre>\n<\/section>\n<p data-nodeid=\\\"305281\\\">\u540c\u6837\uff0c\u6211\u4eec\u67e5\u770b\u4e00\u4e0b\u65b0\u521b\u5efa\u7684\u76ee\u5f55\u4e0b\u53d1\u751f\u4e86\u4ec0\u4e48\uff1f<\/p>\n<section>\n<pre data-lang=\\\"css\\\">total 0\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0cgroup.clone_children\n--w--w--w-.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0cgroup.event_control\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0cgroup.procs\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.failcnt\n--w-------.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.force_empty\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.kmem.failcnt\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.kmem.limit_in_bytes\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.kmem.max_usage_in_bytes\n-r--r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.kmem.slabinfo\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.kmem.tcp.failcnt\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.kmem.tcp.limit_in_bytes\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.kmem.tcp.max_usage_in_bytes\n-r--r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.kmem.tcp.usage_in_bytes\n-r--r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.kmem.usage_in_bytes\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.limit_in_bytes\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.max_usage_in_bytes\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.memsw.failcnt\n-rw-r--r--. 1 root root 0 Sep  5 10:18 memory.memsw.limit_in_bytes\n-rw-r--r--. 1 root root 0 Sep\u00a0\u00a05 10:18 memory.memsw.max_usage_in_bytes\n-r--r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.memsw.usage_in_bytes\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.move_charge_at_immigrate\n-r--r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.numa_stat\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.oom_control\n----------.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.pressure_level\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.soft_limit_in_bytes\n-r--r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.stat\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.swappiness\n-r--r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.usage_in_bytes\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0memory.use_hierarchy\n-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:18\u00a0notify_on_release\n-rw-r--r--. 1 root root 0 Sep  5 10:18 tasks<\/pre>\n<\/section>\n<p data-nodeid=\\\"312281\\\">\u5176\u4e2d memory.limit_in_bytes \u6587\u4ef6\u4ee3\u8868\u5185\u5b58\u4f7f\u7528\u603b\u91cf\uff0c\u5355\u4f4d\u4e3a byte\u3002<\/p>\n<p data-nodeid=\\\"312282\\\">\u4f8b\u5982\uff0c\u8fd9\u91cc\u6211\u5e0c\u671b\u5bf9\u5185\u5b58\u4f7f\u7528\u9650\u5236\u4e3a 1G\uff0c\u5219\u5411 memory.limit_in_bytes \u6587\u4ef6\u5199\u5165 1073741824\uff0c\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n<section>\n<pre data-lang=\\\"shell\\\">#\u00a0cd\u00a0\/sys\/fs\/cgroup\/memory\/mydocker# echo 1073741824 &gt; memory.limit_in_bytes<\/pre>\n<\/section>\n<p data-nodeid=\\\"311731\\\">\u521b\u5efa\u8fdb\u7a0b\uff0c\u52a0\u5165 cgroup\n<\/p>\n<p data-nodeid=\\\"311731\\\">\u540c\u6837\u628a\u5f53\u524d shell \u8fdb\u7a0b ID \u5199\u5165 tasks \u6587\u4ef6\u5185\uff1a<\/p>\n<section>\n<pre data-lang=\\\"shell\\\">#\u00a0cd\u00a0\/sys\/fs\/cgroup\/memory\/mydocker# echo $$ &gt; tasks<\/pre>\n<\/section>\n<p data-nodeid=\\\"311731\\\">\u6267\u884c\u5185\u5b58\u6d4b\u8bd5\u5de5\u5177\uff0c\u7533\u8bf7\u5185\u5b58<\/p>\n<p data-nodeid=\\\"311733\\\">\u8fd9\u91cc\u6211\u4eec\u9700\u8981\u501f\u52a9\u4e00\u4e0b\u5de5\u5177 memtester\uff0cmemtester \u7684\u5b89\u88c5\u8fd9\u91cc\u4e0d\u518d\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u3002\u5177\u4f53\u5b89\u88c5\u65b9\u5f0f\u53ef\u4ee5\u53c2\u8003\u8fd9\u91cc\u3002<\/p>\n<p data-nodeid=\\\"311734\\\">\u5b89\u88c5\u597d memtester \u540e\uff0c\u6211\u4eec\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<section>\n<pre data-lang=\\\"properties\\\"># memtester 1500M 1\nmemtester\u00a0version\u00a04.2.2\u00a0(64-bit)Copyright\u00a0(C)\u00a02010\u00a0Charles\u00a0Cazabon.Licensed\u00a0under\u00a0the\u00a0GNU\u00a0General\u00a0Public\u00a0License\u00a0version\u00a02\u00a0(only).pagesize\u00a0is\u00a04096pagesizemask\u00a0is\u00a00xfffffffffffff000want\u00a01500MB\u00a0(1572864000\u00a0bytes)got\u00a0\u00a01500MB\u00a0(1572864000\u00a0bytes),\u00a0trying\u00a0mlock\u00a0...Killed<\/pre>\n<\/section>\n<div><\/div>\n<p data-nodeid=\\\"312751\\\">\u8be5\u547d\u4ee4\u4f1a\u7533\u8bf7 1500 M \u5185\u5b58\uff0c\u5e76\u4e14\u505a\u5185\u5b58\u6d4b\u8bd5\u3002\u7531\u4e8e\u4e0a\u9762\u6211\u4eec\u5bf9\u5f53\u524d shell \u8fdb\u7a0b\u5185\u5b58\u9650\u5236\u4e3a 1 G\uff0c\u5f53 memtester \u4f7f\u7528\u7684\u5185\u5b58\u8fbe\u5230 1G \u65f6\uff0ccgroup \u4fbf\u5c06 memtester \u6740\u6b7b\u3002<\/p>\n<p data-nodeid=\\\"312752\\\">\u4e0a\u9762\u6700\u540e\u4e00\u884c\u7684\u8f93\u51fa\u7ed3\u679c\u8868\u793a memtester \u60f3\u8981 1500 M \u5185\u5b58\uff0c\u4f46\u662f\u7531\u4e8e cgroup \u9650\u5236\uff0c\u8fbe\u5230\u4e86\u5185\u5b58\u4f7f\u7528\u4e0a\u9650\uff0c\u88ab\u6740\u6b7b\u4e86\uff0c\u4e0e\u6211\u4eec\u7684\u9884\u671f\u4e00\u81f4\u3002<\/p>\n<p data-nodeid=\\\"311737\\\">\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff0c\u964d\u4f4e\u4e00\u4e0b\u5185\u5b58\u7533\u8bf7\uff0c\u5c06\u5185\u5b58\u7533\u8bf7\u8c03\u6574\u4e3a 500M\uff1a<\/p>\n<section>\n<pre data-lang=\\\"properties\\\"># memtester 500M 1\nmemtester version 4.2.2 (64-bit)\nCopyright (C) 2010 Charles Cazabon.\nLicensed under the GNU General Public License version 2 (only).\npagesize is 4096\npagesizemask is 0xfffffffffffff000\nwant 500MB (524288000 bytes)\ngot  500MB (524288000 bytes), trying mlock ...locked.\nLoop 1\/1:\n  Stuck Address       : ok\n  Random Value        : ok\n  Compare XOR         : ok\n  Compare SUB         : ok\n  Compare MUL         : ok\n  Compare DIV         : ok\n  Compare OR          : ok\n  Compare AND         : ok\n  Sequential Increment: ok\n  Solid Bits          : ok\n  Block Sequential    : ok\n  Checkerboard        : ok\n  Bit Spread          : ok\n  Bit Flip            : ok\n  Walking Ones        : ok\n  Walking Zeroes      : ok\n  8-bit Writes        : ok\n  16-bit Writes       : ok\nDone.<\/pre>\n<\/section>\n<p data-nodeid=\\\"311737\\\">\u8fd9\u91cc\u53ef\u4ee5\u770b\u5230\uff0c\u6b64\u65f6 memtester \u5df2\u7ecf\u6210\u529f\u7533\u8bf7\u5230 500M \u5185\u5b58\u5e76\u4e14\u6b63\u5e38\u5b8c\u6210\u4e86\u5185\u5b58\u6d4b\u8bd5\u3002<\/p>\n<p data-nodeid=\\\"313213\\\">\u5230\u6b64\uff0c\u6211\u4eec\u8bb2\u89e3\u4e86cgroups\u7684 cpu \u548c memroy \u5b50\u7cfb\u7edf\uff0c\u5982\u679c\u4f60\u60f3\u4e86\u89e3\u66f4\u591a\u7684cgroups\u7684\u77e5\u8bc6\u548c\u4f7f\u7528\uff0c\u53ef\u4ee5\u53c2\u8003 Red Hat \u5b98\u7f51\u3002<\/p>\n<h4 data-nodeid=\\\"315513\\\"><\/h4>\n<h4 data-nodeid=\\\"315513\\\">\u5220\u9664 cgroups<\/h4>\n<p data-nodeid=\\\"311741\\\">\u4e0a\u9762\u521b\u5efa\u7684cgroups\u5982\u679c\u4e0d\u60f3\u4f7f\u7528\u4e86\uff0c\u76f4\u63a5\u5220\u9664\u521b\u5efa\u7684\u6587\u4ef6\u5939\u5373\u53ef\u3002<\/p>\n<p data-nodeid=\\\"311742\\\">\u4f8b\u5982\u6211\u60f3\u5220\u9664\u5185\u5b58\u4e0b\u7684 mydocker \u76ee\u5f55\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5373\u53ef\uff1a<\/p>\n<section>\n<pre data-lang=\\\"apache\\\"># rmdir \/sys\/fs\/cgroup\/memory\/mydocker\/<\/pre>\n<\/section>\n<p data-nodeid=\\\"311744\\\">\u5b66\u4e60\u4e86cgroups\u7684\u4f7f\u7528\u65b9\u5f0f\uff0c\u4e0b\u9762\u6211\u5e26\u4f60\u4e86\u89e3\u4e00\u4e0b Docker \u662f\u5982\u4f55\u4f7f\u7528cgroups\u7684\u3002<\/p>\n<h3 data-nodeid=\\\"311745\\\"><\/h3>\n<h3 data-nodeid=\\\"311745\\\">Docker \u662f\u5982\u4f55\u4f7f\u7528cgroups\u7684\uff1f<\/h3>\n<p data-nodeid=\\\"311746\\\">\u9996\u5148\uff0c\u6211\u4eec\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u521b\u5efa\u4e00\u4e2a nginx \u5bb9\u5668\uff1a<\/p>\n<section>\n<pre data-lang=\\\"nginx\\\">docker run -it -m=1g nginx<\/pre>\n<\/section>\n<p data-nodeid=\\\"311748\\\">\u4e0a\u8ff0\u547d\u4ee4\u521b\u5efa\u5e76\u542f\u52a8\u4e86\u4e00\u4e2a nginx \u5bb9\u5668\uff0c\u5e76\u4e14\u9650\u5236\u5185\u5b58\u4e3a 1G\u3002\u7136\u540e\u6211\u4eec\u8fdb\u5165cgroups\u5185\u5b58\u5b50\u7cfb\u7edf\u7684\u76ee\u5f55\uff0c\u4f7f\u7528 ls \u547d\u4ee4\u67e5\u770b\u4e00\u4e0b\u8be5\u76ee\u5f55\u4e0b\u7684\u5185\u5bb9\uff1a<\/p>\n<section>\n<pre data-lang=\\\"sql\\\"># ls -l \/sys\/fs\/cgroup\/memory\ntotal\u00a00-rw-r--r--.\u00a0\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a01\u00a011:50\u00a0cgroup.clone_children--w--w--w-.\u00a0\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a01\u00a011:50\u00a0cgroup.event_control-rw-r--r--.\u00a0\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a01\u00a011:50\u00a0cgroup.procs-r--r--r--.\u00a0\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a01\u00a011:50\u00a0cgroup.sane_behaviordrwxr-xr-x.\u00a0\u00a03\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:50\u00a0docker... \u7701\u7565\u90e8\u5206\u8f93\u51fa<\/pre>\n<\/section>\n<p data-nodeid=\\\"311750\\\">\u901a\u8fc7\u4e0a\u9762\u8f93\u51fa\u53ef\u4ee5\u770b\u5230\uff0c\u8be5\u76ee\u5f55\u4e0b\u6709\u4e00\u4e2a docker \u76ee\u5f55\uff0c\u8be5\u76ee\u5f55\u6b63\u662f Docker \u5728\u5185\u5b58\u5b50\u7cfb\u7edf\u4e0b\u521b\u5efa\u7684\u3002\u6211\u4eec\u8fdb\u5165\u5230 docker \u76ee\u5f55\u4e0b\u67e5\u770b\u4e00\u4e0b\u76f8\u5173\u5185\u5bb9\uff1a<\/p>\n<section>\n<pre data-lang=\\\"sql\\\"># cd \/sys\/fs\/cgroup\/memory\/docker\n# ls -l\ntotal\u00a00drwxr-xr-x.\u00a02\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a05\u00a010:49\u00a0cb5c5391177b44ad87636bf3840ecdda83529e51b76a6406d6742f56a2535d5e-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a04\u00a010:40\u00a0cgroup.clone_children--w--w--w-.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a04\u00a010:40\u00a0cgroup.event_control-rw-r--r--.\u00a01\u00a0root\u00a0root\u00a00\u00a0Sep\u00a0\u00a04\u00a010:40\u00a0cgroup.procs...\u00a0\u7701\u7565\u90e8\u5206\u8f93\u51fa-rw-r--r--. 1 root root 0 Sep  4 10:40 tasks<\/pre>\n<\/section>\n<p data-nodeid=\\\"311752\\\">\u53ef\u4ee5\u770b\u5230 docker \u7684\u76ee\u5f55\u4e0b\u6709\u4e00\u4e2a\u4e00\u4e32\u968f\u673a ID \u7684\u76ee\u5f55\uff0c\u8be5\u76ee\u5f55\u5373\u4e3a\u6211\u4eec\u4e0a\u9762\u521b\u5efa\u7684 nginx \u5bb9\u5668\u7684 ID\u3002\u7136\u540e\u6211\u4eec\u8fdb\u5165\u8be5\u76ee\u5f55\uff0c\u67e5\u770b\u4e00\u4e0b\u8be5\u5bb9\u5668\u7684 memory.limit_in_bytes \u6587\u4ef6\u7684\u5185\u5bb9\u3002<\/p>\n<section>\n<pre data-lang=\\\"shell\\\"># cd cb5c5391177b44ad87636bf3840ecdda83529e51b76a6406d6742f56a2535d5e\n#\u00a0cat\u00a0memory.limit_in_bytes1073741824<\/pre>\n<\/section>\n<section>\u53ef\u4ee5\u770b\u5230\u5185\u5b58\u9650\u5236\u503c\u6b63\u597d\u4e3a 1G\u3002<\/section>\n<p>\u4e8b\u5b9e\u4e0a\uff0cDocker \u521b\u5efa\u5bb9\u5668\u65f6\uff0cDocker \u4f1a\u6839\u636e\u542f\u52a8\u5bb9\u5668\u7684\u53c2\u6570\uff0c\u5728\u5bf9\u5e94\u7684 cgroups \u5b50\u7cfb\u7edf\u4e0b\u521b\u5efa\u4ee5\u5bb9\u5668 ID \u4e3a\u540d\u79f0\u7684\u76ee\u5f55, \u7136\u540e\u6839\u636e\u5bb9\u5668\u542f\u52a8\u65f6\u8bbe\u7f6e\u7684\u8d44\u6e90\u9650\u5236\u53c2\u6570, \u4fee\u6539\u5bf9\u5e94\u7684 cgroups \u5b50\u7cfb\u7edf\u8d44\u6e90\u9650\u5236\u6587\u4ef6, \u4ece\u800c\u8fbe\u5230\u8d44\u6e90\u9650\u5236\u7684\u6548\u679c\u3002<\/p>\n<h3 data-nodeid=\\\"311755\\\">\u5c0f\u7ed3<\/h3>\n<section>cgroups \u4e0d\u4ec5\u53ef\u4ee5\u5b9e\u73b0\u8d44\u6e90\u7684\u9650\u5236\uff0c\u8fd8\u53ef\u4ee5\u4e3a\u6211\u4eec\u7edf\u8ba1\u8d44\u6e90\u7684\u4f7f\u7528\u60c5\u51b5\uff0c\u5bb9\u5668\u76d1\u63a7\u7cfb\u7edf\u7684\u6570\u636e\u6765\u6e90\u4e5f\u662f cgroups \u63d0\u4f9b\u7684\u3002\u53e6\u5916\uff0c\u8bf7\u6ce8\u610f cgroups \u867d\u7136\u53ef\u4ee5\u5b9e\u73b0\u8d44\u6e90\u7684\u9650\u5236\uff0c\u4f46\u662f\u4e0d\u80fd\u4fdd\u8bc1\u8d44\u6e90\u7684\u4f7f\u7528\u3002\u4f8b\u5982\uff0ccgroups \u9650\u5236\u67d0\u4e2a\u5bb9\u5668\u6700\u591a\u4f7f\u7528 1 \u6838 CPU\uff0c\u4f46\u4e0d\u4fdd\u8bc1\u603b\u662f\u80fd\u4f7f\u7528\u5230 1 \u6838 CPU\uff0c\u5f53 CPU \u8d44\u6e90\u53d1\u751f\u7ade\u4e89\u65f6\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5b9e\u9645\u4f7f\u7528\u7684 CPU \u8d44\u6e90\u4ea7\u751f\u7ade\u4e89\u3002<\/section>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0Cgroups Cgroups\uff08\u5168\u79f0\uff1acontrol groups\uff09\u662f Linux \u5185\u6838\u7684\u4e00\u4e2a\u529f\u80fd\uff0c\u5b83\u53ef\u4ee5\u5b9e &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.weijing.co\/?p=5464\"> <span class=\"screen-reader-text\">docker \u4e4b Cgroups \u8d44\u6e90\u9650\u5236<\/span> \u67e5\u770b\u5168\u6587 &raquo;<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[108,123],"tags":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"mailpoet_newsletter_max":false,"woocommerce_thumbnail":false,"woocommerce_single":false,"woocommerce_gallery_thumbnail":false,"shop_catalog":false,"shop_single":false,"shop_thumbnail":false},"uagb_author_info":{"display_name":"weijing","author_link":"http:\/\/www.weijing.co\/?author=4"},"uagb_comment_info":0,"uagb_excerpt":"\u00a0Cgroups Cgroups\uff08\u5168\u79f0\uff1acontrol groups\uff09\u662f Linux \u5185\u6838\u7684\u4e00\u4e2a\u529f\u80fd\uff0c\u5b83\u53ef\u4ee5\u5b9e&hellip;","_links":{"self":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/5464"}],"collection":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5464"}],"version-history":[{"count":0,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/5464\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5464"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5464"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}