Re: [PATCH] Extend mwait idle to optimize away CAL and RESinterrupts to an idle CPU -v1

From: Peter Zijlstra
Date: Thu Feb 23 2012 - 04:09:38 EST


On Thu, 2012-02-23 at 08:50 +0100, Ingo Molnar wrote:
> * Venkatesh Pallipadi <venki@xxxxxxxxxx> wrote:

> > * We can also eliminate TS_POLLING flag in favor of this. But, that will have
> > a lot more touchpoints and better done as a standlone change.
>
> Should most definitely be done for this series to be acceptble -
> as a preparatory patch in the series, with the feature at the
> end of the series.

I don't think you can, TS_POLLING still works for idle=poll, whereas
this new stuff requires monitor/mwait.

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