From: Peter Zijlstra <peterz@infradead.org>
To: Lin Ming <ming.m.lin@intel.com>
Cc: Mike Galbraith <efault@gmx.de>,
lkml <linux-kernel@vger.kernel.org>,
"Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Subject: Re: [RFC PATCH] sched: Pass affine target cpu into wake_affine
Date: Mon, 04 Jan 2010 10:25:05 +0100 [thread overview]
Message-ID: <1262597105.6408.99.camel@laptop> (raw)
In-Reply-To: <1262595827.22471.108.camel@minggr.sh.intel.com>
On Mon, 2010-01-04 at 17:03 +0800, Lin Ming wrote:
> commit a03ecf08d7bbdd979d81163ea13d194fe21ad339
> Author: Lin Ming <ming.m.lin@intel.com>
> 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?
next prev parent reply other threads:[~2010-01-04 9:25 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-04 9:03 [RFC PATCH] sched: Pass affine target cpu into wake_affine Lin Ming
2010-01-04 9:25 ` Peter Zijlstra [this message]
2010-01-04 9:12 ` Lin Ming
2010-01-04 9:32 ` Peter Zijlstra
2010-01-04 10:59 ` Mike Galbraith
2010-01-04 11:07 ` Lin Ming
2010-01-05 2:48 ` Lin Ming
2010-01-05 3:44 ` Mike Galbraith
2010-01-05 6:43 ` Mike Galbraith
2010-01-05 11:49 ` Mike Galbraith
2010-01-07 8:45 ` Lin Ming
2010-01-07 9:15 ` Peter Zijlstra
2010-01-07 9:33 ` Mike Galbraith
2010-01-07 13:14 ` Mike Galbraith
2010-01-08 2:38 ` Lin Ming
2010-01-08 3:34 ` Mike Galbraith
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