[PATCH 0/3] cpu: idle state framework for offline CPUs.

Pavel Machek pavel at ucw.cz
Sun Aug 9 22:08:18 EST 2009


> > Also, approaches such as [1] can make use of this
> > extended infrastructure instead of putting the CPU to an arbitrary C-state
> > when it is offlined, thereby providing the system administrator a rope to hang
> > himself with should he feel the need to do so.
> I didn't see the reason why administrator needs to know which state offline cpu
> should stay. Don't know about powerpc side, but in x86 side, it appears deepest
> C-state is already preferred.

Agreed, deepest c-state is always best, there's no need to make it configurable.

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