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

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@kernel.dk Signed-off-by: Viresh Kumar viresh.kumar@linaro.org

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

Thanks.