Re: [RFC][PATCH 0/7] sched: select_idle_siblings rewrite

[Chris Mason]

On Wed, May 25, 2016 at 06:24:49PM +0200, Peter Zijlstra wrote:
> On Wed, May 25, 2016 at 10:51:20AM -0400, Chris Mason wrote:
> > On Mon, May 09, 2016 at 12:48:07PM +0200, Peter Zijlstra wrote:
> > > Hai,
> > >
> > > here be a semi coherent patch series for the recent select_idle_siblings()
> > > tinkering. Happy benchmarking..
> >
> > This took a while, mostly because my original schbench showed your
> > patches were just as fast as our internal patch, but our production
> > benchmark showed a 5-10% regression.  My theory was just that schbench
> > wasn't fine grained enough, and the load would stop before the
> > regression kicked in.
>
> Just to be sure; regression as per your production kernel, not vs.
> mainline, right?

Sorry yes, that's correct.

-chris