使用系统命令top即可看到如下类似信息:
%Cpu(s): 0.1 us, 0.0 sy, 0.0 ni, 99.6 id, 0.2 wa, 0.0 hi, 0.0 si, 0.0 st
这些参数的含义为:
us: is meaning of “user CPU time”
sy: is meaning of “system CPU time”
ni: is meaning of” nice CPU time”
id: is meaning of “idle”
wa: is meaning of “iowait”
hi:is meaning of “hardware irq”
si : is meaning of “software irq”
st : is meaning of “steal time”
us 用户空间占用CPU百分比
sy 内核空间占用CPU百分比
ni 用户进程空间内改变过优先级的进程占用CPU百分比
id 空闲CPU百分比
wa 等待输入输出的CPU时间百分比
hi 硬件中断
si 软件中断
st: 实时