linux-kernel - Re: [PATCH RFC v4] cpufreq: schedutil: Make iowait boost more energy efficient

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Message-ID: <20170713034219.GJ1679@vireshk-i7>
Date:   Thu, 13 Jul 2017 09:12:19 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Joel Fernandes <joelaf@...gle.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Patrick Bellasi <patrick.bellasi@....com>,
        Juri Lelli <juri.lelli@....com>,
        Andres Oportus <andresoportus@...gle.com>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Len Brown <lenb@...nel.org>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH RFC v4] cpufreq: schedutil: Make iowait boost more energy
 efficient

On 12-07-17, 15:28, Peter Zijlstra wrote:
> Hmm, so you're worried about that ratelimit stuff?

Yeah, somewhat.

> Shouldn't we fix that
> independently -- IIRC Rafael proposed a max-filter over the window.

I had some doubts about that idea in general and shared them earlier
with you:

https://marc.info/?l=linux-kernel&m=149683722822537&w=2

But anyway, I think Joel is somewhat convinced to adapt to the
solution I gave and that wouldn't have any of the problems I shared.
All good now :)

-- 
viresh