Re: [PATCH v3 0/6] cpufreq: schedutil: fixes for flags updates

[Claudio Scordino]

Hi Patrick,

Il 06/02/2018 19:36, Patrick Bellasi ha scritto:
> On 06-Feb 19:14, Claudio Scordino wrote:
> > Hi Patrick,
>
> > > At first glance, your proposal below makes to make sense.
> > >
> > > However, I'm wondering if we cannot get it working using
> > > rq->dl's provided information instead of flags?
> >
> > Yes, we can use the value of rq->dl to check if there has been an increase of the deadline utilization.
> > Even if schedutil might have been triggered by a different scheduling class, the effect should be almost the same.
> >
> > Below a potential patch. I've kept all frequency update decisions in a single point (i.e. sugov_should_update_freq).
> > Not yet tested (waiting for further comments).
>
> I have a todo list entry to backport/test Peter's series on Android...
> will add this patch too. Thanks.

Please discard my latest patch, as the tests on Odroid have shown performance regressions
(likely due to sugov_next_freq_shared being called more often)

Never mind. I have already tested another (even simpler) patch.
Sending soon as a new thread on LKML.

Many thanks and best regards,

                Claudio