From: Alex Shi <alex.shi@intel.com>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
LKML <linux-kernel@vger.kernel.org>,
Namhyung Kim <namhyung.kim@lge.com>,
Mike Galbraith <efault@gmx.de>,
Preeti U Murthy <preeti@linux.vnet.ibm.com>,
Vincent Guittot <vincent.guittot@linaro.org>
Subject: Re: [PATCH] sched: Get rid of unnecessary checks from select_idle_sibling
Date: Wed, 09 Jan 2013 15:38:11 +0800 [thread overview]
Message-ID: <50ED1E63.8090008@intel.com> (raw)
In-Reply-To: <50ED1D54.70208@intel.com>
>
> Uh, we don't know if the target is this_cpu or previous cpu, If we just
> check the target idle status, we may miss another idle cpu. So this
> patch change the logical in this function.
But, you can fold wake_affine into select_idle_sibling(). that will save
a complicate calculation whichever cpu idle. :)
--
Thanks Alex
next prev parent reply other threads:[~2013-01-09 7:37 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-09 6:50 [PATCH] sched: Get rid of unnecessary checks from select_idle_sibling Namhyung Kim
2013-01-09 7:33 ` Alex Shi
2013-01-09 7:38 ` Alex Shi [this message]
2013-01-09 8:00 ` Namhyung Kim
2013-01-09 7:54 ` Namhyung Kim
2013-01-09 8:34 ` Alex Shi
2013-01-10 5:52 ` Namhyung Kim
2013-01-11 2:36 ` Alex Shi
2013-01-09 8:21 ` Preeti U Murthy
2013-01-10 5:49 ` Namhyung Kim
2013-01-10 8:19 ` Preeti U Murthy
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