linux-kernel - Re: [PATCH 2/2] cpufreq: schedutil: consolidate capacity margin calculation

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Message-ID: <20170925081531.hscd5usonplwns3q@hirez.programming.kicks-ass.net>
Date:   Mon, 25 Sep 2017 10:15:31 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Leo Yan <leo.yan@...aro.org>
Cc:     Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Morten Rasmussen <morten.rasmussen@....com>,
        Chris Redpath <Chris.Redpath@....com>,
        Joel Fernandes <joelaf@...gle.com>,
        Vincent Guittot <vincent.guittot@...aro.org>
Subject: Re: [PATCH 2/2] cpufreq: schedutil: consolidate capacity margin
 calculation

On Sat, Sep 23, 2017 at 07:04:44AM +0800, Leo Yan wrote:
> +	freq = (freq * capacity_margin / 1024) * util / max;

We have SCHED_CAPACITY_SCALE for that..