linux-kernel - Re: [PATCH 4/4] sched,fair: remove effective

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Message-ID: <1498588062.20270.116.camel@redhat.com>
Date:   Tue, 27 Jun 2017 14:27:42 -0400
From:   Rik van Riel <riel@...hat.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     linux-kernel@...r.kernel.org, jhladky@...hat.com, mingo@...nel.org,
        mgorman@...e.de
Subject: Re: [PATCH 4/4] sched,fair: remove effective_load

On Mon, 2017-06-26 at 18:12 +0200, Peter Zijlstra wrote:

> Also note that your use of task_h_load() in the new numa thing
> suffers
> from exactly the problem effective_load() is trying to solve.

Thinking about this some more, I suspect that
using effective_load() in combination with
select_idle_sibling(), which will often place
the task on a different CPU than the one specified,
may not lead to entirely useful results...

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