Re: [PATCH 6/6] cpufreq: schedutil: New governor based on scheduler utilization data

Peter Zijlstra
2016-03-03T16:56:40Z

On Thu, Mar 03, 2016 at 04:55:44PM +0000, Juri Lelli wrote:
> On 03/03/16 17:37, Peter Zijlstra wrote:
> > But given the platform's cpuidle information, maybe coupled with an avg
> > idle est, we can compute the benefit of race-to-idle and over provision
> > based on that, right?
> >
>
> Shouldn't this kind of considerations be a scheduler thing? I'm not
> really getting why we want to put more "intelligence" in a new governor.
> Also, if I understand Ingo's point correctly, I think we want to make
> this kind of policy decisions inside the scheduler.

Well sure, put it in kernel/sched/cpufreq.c or wherever. My point was
more that we don't have to guess/hardcode race-to-idle assumptions but
can actually calculate some of that.