用top命令后面跟什么参数可以只显示cpu的使用率信息,例如只显示
Cpu(s): 0.3% us, 1.0% sy, 0.0% ni, 98.7% id, 0.0% wa, 0.0% hi, 0.0% si
一直不停显示下去
[root@localhost ~]# top -d 5 |grep "Cpu(s)"
Cpu(s): 0.0%us, 0.1%sy, 0.0%ni, 99.5%id, 0.2%wa, 0.1%hi, 0.1%si, 0.0%st
Cpu(s): 0.2%us, 0.0%sy, 0.0%ni, 99.5%id, 0.0%wa, 0.2%hi, 0.0%si, 0.0%st
Cpu(s): 0.5%us, 0.8%sy, 0.0%ni, 98.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu(s): 0.2%us, 0.0%sy, 0.0%ni, 99.8%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
其中d代表延迟多久显示一次。