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

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Message-ID: <20171222122214.dzzx2pjja3wn5f4q@hirez.programming.kicks-ass.net>
Date:   Fri, 22 Dec 2017 13:22:14 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Patrick Bellasi <patrick.bellasi@....com>
Cc:     Juri Lelli <juri.lelli@...hat.com>, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Morten Rasmussen <morten.rasmussen@....com>,
        Todd Kjos <tkjos@...roid.com>,
        Joel Fernandes <joelaf@...gle.com>
Subject: Re: [PATCH v3 0/6] cpufreq: schedutil: fixes for flags updates

On Fri, Dec 22, 2017 at 12:14:45PM +0000, Patrick Bellasi wrote:
> I think that check is already gone for CFS in the current PeterZ tree.
> It seems we use TICK_NS just for the reset of iowait_boost, isn't it?

Easy enough to bring back though.

> However, if the remote updates of CFS works as expected,
> the removal of the TICK_NS for CFS is not intentional?

So I killed that because I now do get_util for all CPUs and figured
get_util provides up-to-date numbers. So we don't need no artificial
aging.

Esp. once we get that whole blocked load stuff sorted.