top命令 %Cpu(s): 39.2 us, 5.3 sy, 0.0 ni, 55.5 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
这里与分享一些Linux最常用的命令,自己是RedHat 7
top
top命令功能很强大,动态查看系统的运维状态,完全将它看作 Linux 中的“强化版的
Windows 任务管理器”。
这里给出%Cpu(s)行单位的意思:
这行数据均以百分比格式显示
us:us, user : time running un-niced user processes 用户空间占用CPU百分比
sy, system : time running kernel processes 内核空间占用CPU百分比
ni, nice : time running niced user processes 用户进程空间内改变过优先级的进程占用CPU百分比
wa, IO-wait : time waiting for I/O completion 等待输入输出的CPU时间百分比
hi : time spent servicing hardware interrupts 硬件中断
si : time spent servicing software interrupts 软件中断
st : time stolen from this vm by the hypervisor
第四五行单位
KiB = kibibyte = 1024 bytes
MiB = mebibyte = 1024 KiB = 1,048,576 bytes
GiB = gibibyte = 1024 MiB = 1,073,741,824 bytes
TiB = tebibyte = 1024 GiB = 1,099,511,627,776 bytes
PiB = pebibyte = 1024 TiB = 1,125,899,906,842,624 bytes
EiB = exbibyte = 1024 PiB = 1,152,921,504,606,846,976 bytes
以上是查询man手册,对于初学者,要善于使用man命令
感谢一下文章对我帮助:
https://blog.****.net/sasoritattoo/article/details/9318893
这里向大家推荐刘遄老师的《Linux就该这么学》,以下是这本书的pdf、word文档
链接: https://pan.baidu.com/s/1V2mgSWE8XNrIkmBpQnjjEg 密码: 3271