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

From: Pavel Machek
Date: Wed Aug 12 2009 - 07:58:22 EST


Hi!

> May be having (to pick a number) 3 possible offline states for all
> platforms with one for halt equivalent and one for deepest possible that
> CPU can handle and one for deepest possible that platform likes for
> C-states may make sense. Will keeps things simpler in terms of usage
> expectations and possibly reduce the misuse oppurtubity?

Maybe just going to the deepest offline state automatically is the
easiest option?

cpu hotplug/unplug should be rare-enough operation that the latencies
do not really matter, right?
Pavel
--
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