linux-kernel - Re: default cpufreq gov, was: [PATCH] sched/fair: check for idle core

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Date:   Thu, 22 Oct 2020 22:16:00 +0200
From:   Giovanni Gherdovich <ggherdovich@...e.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:     Mel Gorman <mgorman@...e.de>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Julia Lawall <julia.lawall@...ia.fr>,
        Ingo Molnar <mingo@...hat.com>,
        kernel-janitors@...r.kernel.org,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ben Segall <bsegall@...gle.com>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        linux-kernel@...r.kernel.org,
        Valentin Schneider <valentin.schneider@....com>,
        Gilles Muller <Gilles.Muller@...ia.fr>,
        srinivas.pandruvada@...ux.intel.com,
        Linux PM <linux-pm@...r.kernel.org>,
        Len Brown <len.brown@...el.com>
Subject: Re: default cpufreq gov, was: [PATCH] sched/fair: check for idle
 core

On Thu, 2020-10-22 at 22:10 +0200, Giovanni Gherdovich wrote:
> [...]
> To read the tables:
> 
> Tilde (~) means the result is the same as baseline (or, the ratio is close
> to 1). The double asterisk (**) is a visual aid and means the result is
> worse than baseline (higher or lower depending on the case).

Ouch, the opposite. Double asterisk (**) is where the result is better
than baseline, and schedutil needs improvement.


Giovanni