linux-kernel - Re: [PATCH 7/7 v3] sched: fix wrong utilization accounting when switching to fair class

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Message-ID: <20160922083351.GV5012@twins.programming.kicks-ass.net>
Date:   Thu, 22 Sep 2016 10:33:51 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     bsegall@...gle.com
Cc:     Vincent Guittot <vincent.guittot@...aro.org>,
        Ingo Molnar <mingo@...nel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Yuyang Du <yuyang.du@...el.com>,
        Morten Rasmussen <Morten.Rasmussen@....com>,
        Linaro Kernel Mailman List <linaro-kernel@...ts.linaro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Paul Turner <pjt@...gle.com>
Subject: Re: [PATCH 7/7 v3] sched: fix wrong utilization accounting when
 switching to fair class

On Tue, Sep 20, 2016 at 09:59:08AM -0700, bsegall@...gle.com wrote:
> Peter Zijlstra <peterz@...radead.org> writes:
> > Google has this patch-set replacing min_vruntime with an actual global
> > 0-lag, which greatly simplifies things. If only they'd post it sometime
> > :/ /me prods pjt and ben with a sharp stick :-)
> >
> 
> No, we don't have any patches like that. I wish, we've screwed up
> vruntime a couple of times too.

Hurm, I was sure you guys were doing something entirely different from
what mainline does.

IIRC Andrew Hunter was 'working' on getting that posted. See also:
lkml.kernel.org/r/CADroS=6Ncpao6WWXBxboB6quqUP96EnjbsDUZqNgASd_PzDGaA@...l.gmail.com