Messages in this thread | | | Date | Fri, 29 Mar 2013 10:40:03 -0700 | From | Tejun Heo <> | Subject | Re: [PATCH V3 3/7] workqueue: Add helpers to schedule work on any cpu |
| |
Hello, Viresh.
On Fri, Mar 29, 2013 at 12:57:23PM +0530, Viresh Kumar wrote: > On 28 March 2013 23:43, Tejun Heo <tj@kernel.org> wrote: > > Viresh, would it be difficult to make another measurement of the same > > workload with the said workqueues converted to unbound? I think that > > would at least provide a nice reference point. > > My heart is shattered after getting the results :) > > > Cluster A15 Energy Cluster A7 Energy Total > ------------------------- ----------------------- ------ > > Without this patchset (Energy in Joules): > --------------------------------------------------- > 0.322866 2.619137 2.942003 > > > With this patchset (Energy in Joules): > ----------------------------------------------- > 0.182721 2.443745 2.626466 > > > With WQ Unbound (Energy in Joules): > ----------------------------------------------- > 0.2289042 2.2514632 2.4803674
So the scheduler does know what it's doing after all, which is a nice news. Given the result, the best thing to do would be somehow marking these workqueues as unbound for powersaving?
Thanks!
-- tejun
| |