linux-kernel - Re: [PATCH] sched/fair: Fix task utilization accountability in cpu_util

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Message-ID: <YDPdWtwO/uPHf69Q@google.com>
Date:   Mon, 22 Feb 2021 16:35:38 +0000
From:   Quentin Perret <qperret@...gle.com>
To:     Vincent Donnefort <vincent.donnefort@....com>
Cc:     peterz@...radead.org, mingo@...hat.com, vincent.guittot@...aro.org,
        dietmar.eggemann@....com, linux-kernel@...r.kernel.org,
        patrick.bellasi@...bug.net, valentin.schneider@....com
Subject: Re: [PATCH] sched/fair: Fix task utilization accountability in
 cpu_util_next()

On Monday 22 Feb 2021 at 16:31:08 (+0000), Vincent Donnefort wrote:
> I suppose, a way of fixing this, is to keep cpu_util_next() the way it is to
> get the appropriate frequency at which the CPU would run once the task has been
> enqueued, for the 'max_util', and have 'sum_util' being the sum of the pd's util
> (without the task) + task_util_est().

You read my mind :)