On Wed, Apr 24, 2013 at 05:12:57PM +0530, Viresh Kumar wrote:

fbcon uses workqueues and it has 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 system_wq with system_power_efficient_wq.

Cc: Dave Airlie <airlied@redhat.com>
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

Dave, applied this to wq/for-3.11.  Please holler if you want this to
be routed differently.

Thanks!

-- 
tejun