linux-kernel - Re: [PATCH] sched/fair: fix load_balance redo for null imbalance

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Message-ID: <20180907125740.GJ24142@hirez.programming.kicks-ass.net>
Date:   Fri, 7 Sep 2018 14:57:40 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Vincent Guittot <vincent.guittot@...aro.org>
Cc:     mingo@...nel.org, linux-kernel@...r.kernel.org,
        dietmar.eggemann@....com, jhugo@...eaurora.org
Subject: Re: [PATCH] sched/fair: fix load_balance redo for null imbalance

On Fri, Sep 07, 2018 at 02:55:54PM +0200, Peter Zijlstra wrote:
> > Beside this patch, I'm preparing another patch in fix small imbalance to
> > ensure 1 task per CPU in similar situation but according to the comment above,
> > we can reach this situation because of tasks priority
> 
> Didn't we all hate fix_small_imbalance() ?

That is, all that load_per_task business is complete rubbish in this
cgroup world.