Re: [RFC] Extend mwait idle to optimize away IPIs when possible

From: Venki Pallipadi
Date: Tue Feb 14 2012 - 21:32:12 EST


On Tue, Feb 14, 2012 at 5:52 AM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> On Mon, 2012-02-13 at 13:34 +0800, Yong Zhang wrote:
>> Yeah, most of the things could be shared. Such as the added logic when
>> return from idle and the hooks into ttwu_queue_remote() and
>> generic_exec_single().
>>
>
> The thing is, those last two should not have hooks. Nor am I convinced
> anything outside of the arch idle loop should have any.
>

OK. Will put stuff in arch and respin soon..

-Venki
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