linux-kernel - Re: [PATCH 1/3] sched/fair: Add tg_load_contrib cfs

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Message-ID: <CAFpoUr0mTQym4cmN98Er=4byRo9wqYcuOsbMLDJEnjvD-2ZbMg@mail.gmail.com>
Date:   Thu, 27 May 2021 14:39:59 +0200
From:   Odin Ugedal <odin@...d.al>
To:     Odin Ugedal <odin@...d.al>
Cc:     Vincent Guittot <vincent.guittot@...aro.org>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        "open list:CONTROL GROUP (CGROUP)" <cgroups@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/3] sched/fair: Add tg_load_contrib cfs_rq decay checking

> For 1st problem, the way we were updating load_avg and load_sum, we
> were losing the sync between both value

Yeah, that would be a natural way to fix that.

> In fact, the update was already there but not always called (see the
> patchset i just sent)

Yeah, that was my exact point.

Odin