Re: [PATCH v2 4/4] sched/cpufreq_schedutil: use util_est for OPP selection

From: Patrick Bellasi
Date: Mon Dec 18 2017 - 05:48:47 EST


Hi Rafael,

On 16-Dec 03:35, Rafael J. Wysocki wrote:
> On Tuesday, December 5, 2017 6:10:18 PM CET Patrick Bellasi wrote:
[...]

> > diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
> > index 2f52ec0f1539..465430d99440 100644
> > --- a/kernel/sched/cpufreq_schedutil.c
> > +++ b/kernel/sched/cpufreq_schedutil.c
> > @@ -183,7 +183,11 @@ static void sugov_get_util(unsigned long *util, unsigned long *max, int cpu)
> >
> > cfs_max = arch_scale_cpu_capacity(NULL, cpu);
> >
> > - *util = min(rq->cfs.avg.util_avg, cfs_max);
> > + *util = rq->cfs.avg.util_avg;
>
> I would use a local variable here.
>
> That *util everywhere looks a bit dirtyish.

Yes, right... will update for the next respin.

>
> > + if (sched_feat(UTIL_EST))
> > + *util = max(*util, rq->cfs.util_est_runnable);
> > + *util = min(*util, cfs_max);
> > +
> > *max = cfs_max;
> > }
> >
> >

Cheers Patrick

--
#include <best/regards.h>

Patrick Bellasi