Re: [RFC/RFT][PATCH 0/4] cpufreq / sched: iowait boost in intel_pstate and schedutil

From: Rafael J. Wysocki
Date: Wed Sep 07 2016 - 20:38:53 EST


On Wednesday, September 07, 2016 05:35:50 PM Srinivas Pandruvada wrote:
> On Wed, 2016-09-07 at 17:22 -0700, Steve Muckle wrote:
> > On Sat, Sep 03, 2016 at 02:56:48AM +0200, Rafael J. Wysocki wrote:
> > >
> > > Please let me know what you think and if you can run some
> > > benchmarks you
> > > care about and see if the changes make any difference (this way or
> > > another),
> > > please do that and let me know what you've found.
> >
> > LGTM (I just reviewed the first and last patch, skipping the
> > intel_pstate ones).
> >
> > I was unable to see a conclusive power regression in Android audio,
> > video or
> > idle usecases on my hikey 96board.
> Did you see any performance regression on Android workloads?

That's with schedutil and IOwait boost. Why would performance regress?

Thanks,
Rafael