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From:   Odin Ugedal <odin@uged.al>
Date:   Thu, 3 Jun 2021 16:32:50 +0200
Message-ID: <CAFpoUr01WeUEaE=Md3WVtgWbZv+8Vuz23ad-ucqeSW5g7fKsRg@mail.gmail.com>
Subject: Re: [PATCH] sched/pelt: check that *_avg are null when *_sum are
To:     Vincent Guittot <vincent.guittot@linaro.org>
Cc:     Odin Ugedal <odin@uged.al>, Ingo Molnar <mingo@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Juri Lelli <juri.lelli@redhat.com>,
        Dietmar Eggemann <dietmar.eggemann@arm.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Benjamin Segall <bsegall@google.com>,
        Mel Gorman <mgorman@suse.de>,
        Daniel Bristot de Oliveira <bristot@redhat.com>,
        open list <linux-kernel@vger.kernel.org>
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> TBH I wondered while preparing this patch if tg_load_avg_contrib
> should be checked as well but I came to the conclusion that we should
> keep this looking at PELT metrics only. If tg_load_avg_contrib != 0
> but load_avg ==0, it means that we failed to update
> tg_load_avg_contrib somewhere else

Ahh, that sounds good. Agree.

Thanks
Odin