使用方法很简单，参数3表示消耗3颗CPU的资源，运行后，会有一堆 kill 命令，方便 kill 进程：
[root@test02 ~]# ./killcpu.sh 3
kill 30104 ;
kill 30106 ;
kill 30108 ;
[root@test02 ~]# top
top - 15:27:31 up 264 days, 23:39, 4 users, load average: 0.86, 0.25, 0.19
Tasks: 185 total, 5 running, 180 sleeping, 0 stopped, 0 zombie
Cpu0 : 100.0% us, 0.0% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi, 0.0% si
Cpu1 : 0.0% us, 0.0% sy, 0.0% ni, 100.0% id, 0.0% wa, 0.0% hi, 0.0% si
Cpu2 : 100.0% us, 0.0% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi, 0.0% si
Cpu3 : 100.0% us, 0.0% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi, 0.0% si
Mem: 8165004k total, 8095880k used, 69124k free, 53672k buffers
Swap: 2031608k total, 103548k used, 1928060k free, 6801364k cached
