Re: [RFC PATCH] sched: Pass affine target cpu into wake_affine

From: Peter Zijlstra
Date: Mon Jan 04 2010 - 04:25:52 EST


On Mon, 2010-01-04 at 17:03 +0800, Lin Ming wrote:
> commit a03ecf08d7bbdd979d81163ea13d194fe21ad339
> Author: Lin Ming <ming.m.lin@xxxxxxxxx>
> Date: Mon Jan 4 14:14:50 2010 +0800
>
> sched: Pass affine target cpu into wake_affine
>
> Since commit a1f84a3(sched: Check for an idle shared cache in select_task_rq_fair()),
> the affine target maybe adjusted to any idle cpu in cache sharing domains
> instead of current cpu.
> But wake_affine still use current cpu to calculate load which is wrong.
>
> This patch passes affine cpu into wake_affine.
>

Does this at all help with that regression?

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