From: Patrick Bellasi <patrick.bellasi@arm.com>
To: Claudio Scordino <claudio@evidence.eu.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
Ingo Molnar <mingo@redhat.com>,
"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
Viresh Kumar <viresh.kumar@linaro.org>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Morten Rasmussen <morten.rasmussen@arm.com>,
Juri Lelli <juri.lelli@redhat.com>, Todd Kjos <tkjos@android.com>,
Joel Fernandes <joelaf@google.com>
Subject: Re: [PATCH v3 0/6] cpufreq: schedutil: fixes for flags updates
Date: Tue, 6 Feb 2018 18:36:24 +0000 [thread overview]
Message-ID: <20180206183623.GH5739@e110439-lin> (raw)
In-Reply-To: <68afaf84-893e-6770-b9f1-619cd2b6dc9c@evidence.eu.com>
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.
--
#include <best/regards.h>
Patrick Bellasi
next prev parent reply other threads:[~2018-02-06 18:36 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-30 11:47 [PATCH v3 0/6] cpufreq: schedutil: fixes for flags updates Patrick Bellasi
2017-11-30 11:47 ` [PATCH v3 1/6] cpufreq: schedutil: reset sg_cpus's flags at IDLE enter Patrick Bellasi
2017-11-30 13:12 ` Juri Lelli
2017-11-30 15:41 ` Patrick Bellasi
2017-11-30 16:02 ` Juri Lelli
2017-11-30 16:19 ` Patrick Bellasi
2017-11-30 16:45 ` Juri Lelli
2017-12-07 5:01 ` Viresh Kumar
2017-12-07 12:45 ` Patrick Bellasi
2017-12-07 15:55 ` Dietmar Eggemann
2017-12-12 11:37 ` Viresh Kumar
2017-12-12 13:38 ` Juri Lelli
2017-12-12 14:40 ` Viresh Kumar
2017-12-12 14:56 ` Juri Lelli
2017-12-12 15:18 ` Patrick Bellasi
2017-12-12 15:16 ` Patrick Bellasi
2017-12-13 9:06 ` Viresh Kumar
2017-12-20 14:33 ` Peter Zijlstra
2017-12-20 14:51 ` Patrick Bellasi
2017-11-30 11:47 ` [PATCH v3 2/6] cpufreq: schedutil: ensure max frequency while running RT/DL tasks Patrick Bellasi
2017-11-30 13:17 ` Juri Lelli
2017-11-30 15:45 ` Patrick Bellasi
2017-11-30 16:03 ` Juri Lelli
2017-12-07 5:05 ` Viresh Kumar
2017-12-07 14:18 ` Patrick Bellasi
2017-11-30 11:47 ` [PATCH v3 3/6] cpufreq: schedutil: update CFS util only if used Patrick Bellasi
2017-11-30 13:22 ` Juri Lelli
2017-11-30 15:57 ` Patrick Bellasi
2017-12-07 5:15 ` Viresh Kumar
2017-12-07 14:19 ` Patrick Bellasi
2017-12-14 4:45 ` Viresh Kumar
2017-11-30 11:47 ` [PATCH v3 4/6] sched/rt: fast switch to maximum frequency when RT tasks are scheduled Patrick Bellasi
2017-11-30 13:28 ` Juri Lelli
2017-12-06 9:39 ` Vincent Guittot
2017-12-06 11:38 ` Patrick Bellasi
2017-12-06 12:36 ` Vincent Guittot
2017-11-30 11:47 ` [PATCH v3 5/6] cpufreq: schedutil: relax rate-limiting while running RT/DL tasks Patrick Bellasi
2017-11-30 13:36 ` Juri Lelli
2017-11-30 15:54 ` Patrick Bellasi
2017-11-30 16:06 ` Juri Lelli
2017-11-30 11:47 ` [PATCH v3 6/6] cpufreq: schedutil: ignore sugov kthreads Patrick Bellasi
2017-11-30 13:41 ` Juri Lelli
2017-11-30 16:02 ` Patrick Bellasi
2017-11-30 16:12 ` Juri Lelli
2017-11-30 16:42 ` Patrick Bellasi
2017-12-07 9:24 ` Viresh Kumar
2017-12-07 15:47 ` Patrick Bellasi
2017-12-20 15:30 ` [PATCH v3 0/6] cpufreq: schedutil: fixes for flags updates Peter Zijlstra
2017-12-20 15:43 ` Peter Zijlstra
2017-12-21 9:15 ` Viresh Kumar
2017-12-21 10:25 ` Peter Zijlstra
2017-12-21 10:30 ` Viresh Kumar
2017-12-21 10:39 ` Peter Zijlstra
2017-12-21 10:43 ` Viresh Kumar
2017-12-22 8:30 ` Peter Zijlstra
2017-12-20 15:56 ` Peter Zijlstra
2017-12-31 9:43 ` Claudio Scordino
2018-01-02 13:31 ` Claudio Scordino
2017-12-20 17:38 ` Juri Lelli
2017-12-20 18:16 ` Peter Zijlstra
2017-12-22 10:06 ` Peter Zijlstra
2017-12-22 11:02 ` Patrick Bellasi
2017-12-22 11:46 ` Peter Zijlstra
2017-12-22 12:07 ` Juri Lelli
2017-12-22 12:14 ` Patrick Bellasi
2017-12-22 12:22 ` Peter Zijlstra
2017-12-22 12:07 ` Patrick Bellasi
2017-12-22 12:19 ` Peter Zijlstra
2017-12-22 12:27 ` Juri Lelli
2017-12-22 12:38 ` Patrick Bellasi
2017-12-22 12:43 ` Juri Lelli
2017-12-22 12:50 ` Patrick Bellasi
2017-12-22 13:01 ` Juri Lelli
2017-12-22 12:10 ` Peter Zijlstra
2017-12-22 12:25 ` Patrick Bellasi
2017-12-21 7:34 ` Viresh Kumar
2018-02-06 10:55 ` Claudio Scordino
2018-02-06 15:43 ` Patrick Bellasi
2018-02-06 18:14 ` Claudio Scordino
2018-02-06 18:36 ` Patrick Bellasi [this message]
2018-02-08 16:14 ` Claudio Scordino
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