Re: [PATCH 6/6] psi: introduce psi monitor

[Suren Baghdasaryan]

On Mon, Dec 17, 2018 at 8:37 AM Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>
> On Fri, Dec 14, 2018 at 09:15:08AM -0800, Suren Baghdasaryan wrote:
> > @@ -358,28 +526,23 @@ static void psi_update_work(struct work_struct *work)
> >  {
> >       struct delayed_work *dwork;
> >       struct psi_group *group;
> > +     u64 next_update;
> >
> >       dwork = to_delayed_work(work);
> >       group = container_of(dwork, struct psi_group, clock_work);
> >
> >       /*
> > +      * Periodically fold the per-cpu times and feed samples
> > +      * into the running averages.
> >        */
> >
> > +     psi_update(group);
> >
> > +     /* Calculate closest update time */
> > +     next_update = min(group->polling_next_update,
> > +                             group->avg_next_update);
> > +     schedule_delayed_work(dwork, min(PSI_FREQ,
> > +             nsecs_to_jiffies(next_update - sched_clock()) + 1));
>
> See, so I don't at _all_ like how there is no idle option..

Copy that. Will see what we can do to bring it back.
Thanks!

> >  }
>
>
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