CPUlimit 有效防止 Linux 系统 CPU 过载

1
[root@bruce ~]# cpulimit -h
2
Usage: cpulimit [OPTIONS...] TARGET
3
   OPTIONS
4
      -l, --limit=N          percentage of cpu allowed from 0 to 200 (required) //cpu限制的百分比
5
      -v, --verbose          show control statistics //显示版本号
6
      -z, --lazy             exit if there is no target process, or if it dies //如果限制的进程不存在了，则退出。
7
      -i, --include-children limit also the children processes //包括子进程
8
      -h, --help             display this help and exit //帮助，显示参数
9
   TARGET must be exactly one of these:
10
      -p, --pid=N            pid of the process (implies -z) //进程的pid
11
      -e, --exe=FILE         name of the executable program file or path name //可执行程序或进程路径
12
      COMMAND [ARGS]         run this command and limit it (implies -z) //限制某一条命令执行的cup占用

1
cd /tmp
2
wget https://github.com/opsengine/cpulimit/archive/v0.2.zip
3
unzip v0.2.zip
4
cd cpulimit-0.2
5
make
6
cp src/cpulimit /usr/bin

1
cpulimit -p 1234 -l 40

1
 cpulimit -e /usr/local/nginx-1.4.1/sbin/nginx -l 50

1
cpulimit -l 60 unzip 5555.zip