Re: [PATCH V5 4/5] block: queue work on power efficient wq

From: Tejun Heo
Date: Tue May 14 2013 - 13:57:38 EST


On Wed, Apr 24, 2013 at 05:12:56PM +0530, Viresh Kumar wrote:
> Block layer uses workqueues for multiple purposes. There is no real dependency
> of scheduling these on the cpu which scheduled them.
>
> On a idle system, it is observed that and idle cpu wakes up many times just to
> service this work. It would be better if we can schedule it on a cpu which the
> scheduler believes to be the most appropriate one.
>
> This patch replaces normal workqueues with power efficient versions.
>
> Cc: Jens Axboe <axboe@xxxxxxxxx>
> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>

Jens, applied this to wq/for-3.11. Please holler if you wanna route
this differently.

Thanks.

--
tejun
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