From: Ingo Molnar <mingo@elte.hu>
To: "Amit K. Arora" <aarora@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org, vatsa@linux.vnet.ibm.com,
a.p.zijlstra@chello.nl
Subject: Re: [PATCH][resubmit] sched: minor optimizations in wake_affine and select_task_rq_fair
Date: Tue, 30 Sep 2008 15:26:09 +0200 [thread overview]
Message-ID: <20080930132609.GA19233@elte.hu> (raw)
In-Reply-To: <20080930114539.GB14977@amitarora.in.ibm.com>
* Amit K. Arora <aarora@linux.vnet.ibm.com> wrote:
> As mentioned in http://lkml.org/lkml/2008/9/30/141 , this is the new
> patch.
>
> sched: Minor optimizations in wake_affine and select_task_rq_fair
>
> This patch does following:
> o Removes unused variable and argument "rq".
> o Optimizes one of the "if" conditions in wake_affine() - i.e. if
> "balanced" is true, we need not do rest of the calculations in the
> condition.
> o If this cpu is same as the previous cpu (on which woken up task
> was running when it went to sleep), no need to call wake_affine at all.
>
> Signed-off-by: Amit K Arora <aarora@linux.vnet.ibm.com>
> CC: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
> CC: Peter Zijlstra <a.p.zijlstra@chello.nl>
> CC: Ingo Molnar <mingo@elte.hu>
applied to tip/sched/devel, thanks Amit!
Ingo
prev parent reply other threads:[~2008-09-30 13:26 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-29 10:02 [PATCH] sched: minor optimizations in wake_affine and select_task_rq_fair Amit K. Arora
2008-09-29 16:09 ` Chris Friesen
2008-09-30 7:01 ` Ingo Molnar
2008-09-30 11:40 ` Amit K. Arora
2008-09-30 7:03 ` Amit K. Arora
2008-09-30 11:45 ` [PATCH][resubmit] " Amit K. Arora
2008-09-30 13:26 ` Ingo Molnar [this message]
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