CPU的C-States /Cpu的各种状态

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C-States从C0开始，C0是CPU的正常工作模式，CPU处于100%运行状态。C后的数越高，CPU睡眠得越深，CPU的功耗被降低得越多，同时需要更多的时间回到C0模式。

每一个模式都有一个对应的名字，有的模式还有子模式，子模式又具有不同功耗和唤醒时间。）