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Message-ID: <20171130164237.GI31247@e110439-lin> Date: Thu, 30 Nov 2017 16:42:51 +0000 From: Patrick Bellasi <patrick.bellasi@....com> To: Juri Lelli <juri.lelli@...hat.com> Cc: linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org, Ingo Molnar <mingo@...hat.com>, Peter Zijlstra <peterz@...radead.org>, "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 6/6] cpufreq: schedutil: ignore sugov kthreads On 30-Nov 17:12, Juri Lelli wrote: > On 30/11/17 16:02, Patrick Bellasi wrote: > > On 30-Nov 14:41, Juri Lelli wrote: > > [...] > > > > If the DL changes (which I shall post again as soon as tip/sched/core is > > > bumped up to 4.15-rc1) get in first, this is going to be useless (as the > > > DL kthread gets ignored by the scheduling class itself). But, this looks > > > good to me "in the meantime". > > > > Just to better understand, you mean that the DL kthread does not send > > out schedutil updates? > > It doesn't have a "proper" bandwidth (utilization) :/. So it gets > "unnoticed" and schedutil updates are not triggered. Ah, right... that was the "let CBS ignore this DL task" solution! ;-) > > > > If that's the case I agree we can discard this patch... that's also > > one of the reasons why I move it at the end of this series. > > Not sure about this though, not my call :). I guess this still helps > until we get the DL changes in. Yes, agree... well Viresh had some concerns about this patch. Let see what he thinks. > Best, > > Juri -- #include <best/regards.h> Patrick Bellasi
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