使用系統命令top即可看到如下類似信息：
Cpu(s): 0.0%us, 0.5%sy, 0.0%ni, 99.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
I try to explain these:
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"
中文翻譯爲：
us 用戶空間佔用CPU百分比
sy 內核空間佔用CPU百分比
ni 用戶進程空間內改變過優先級的進程佔用CPU百分比
id 空閒CPU百分比
wa 等待輸入輸出的CPU時間百分比
hi 硬件中斷
si 軟件中斷
st: 實時