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Re: [RFC PATCH 1/2] sched/rt: add utilization tracking

From Peter Zijlstra <peterz@infradead.org>
Newsgroups linux.kernel
Subject Re: [RFC PATCH 1/2] sched/rt: add utilization tracking
Date 2017-05-31 13:40 +0200
Message-ID <tNa8O-48w-25@gated-at.bofh.it> (permalink)
References <tKAsN-ma-7@gated-at.bofh.it> <tKAsO-ma-21@gated-at.bofh.it> <tN8qm-31c-19@gated-at.bofh.it> <tN9cJ-3w7-9@gated-at.bofh.it> <tN9mq-3zx-17@gated-at.bofh.it>
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On Wed, May 31, 2017 at 11:41:11AM +0100, Juri Lelli wrote:
> On 31/05/17 12:30, Peter Zijlstra wrote:

> > Again, it seems I have this CPPC/HWP crud firmly stuck in my brain.
> > Because I was thinking:
> > 
> > 	min_freq = dl_util
> > 	avg_freq = dl_avg + rt_avg + cfs_util
> > 
> > 
> > But given we don't actually have that split... meh.
> > 
> 
> Right, interesting. So, I guess the question is: should we have it? :)

I think cpufreq should certainly look at moving into that direction, but
that's up to Rafael of course..

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Thread

Re: [RFC PATCH 1/2] sched/rt: add utilization tracking Peter Zijlstra <peterz@infradead.org> - 2017-05-31 11:50 +0200
  Re: [RFC PATCH 1/2] sched/rt: add utilization tracking Peter Zijlstra <peterz@infradead.org> - 2017-05-31 12:40 +0200
    Re: [RFC PATCH 1/2] sched/rt: add utilization tracking Juri Lelli <juri.lelli@arm.com> - 2017-05-31 12:50 +0200
      Re: [RFC PATCH 1/2] sched/rt: add utilization tracking Peter Zijlstra <peterz@infradead.org> - 2017-05-31 13:40 +0200
  Re: [RFC PATCH 1/2] sched/rt: add utilization tracking Vincent Guittot <vincent.guittot@linaro.org> - 2017-05-31 13:30 +0200

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