linux-kernel - Re: [PATCH v2 00/13] sched: Clean-ups and asymmetric cpu capacity support

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Message-ID: <CAKfTPtCznv22R-AfY4q=QKa=MCOw06EL407N5yTWuE=6oWWeFQ@mail.gmail.com>
Date:	Mon, 11 Jul 2016 14:44:26 +0200
From:	Vincent Guittot <vincent.guittot@...aro.org>
To:	Morten Rasmussen <morten.rasmussen@....com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Yuyang Du <yuyang.du@...el.com>, mgalbraith@...e.de,
	"mingo@...hat.com" <mingo@...hat.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 00/13] sched: Clean-ups and asymmetric cpu capacity support

Hi Morten,

On 11 July 2016 at 10:33, Morten Rasmussen <morten.rasmussen@....com> wrote:
> On Wed, Jun 22, 2016 at 06:03:11PM +0100, Morten Rasmussen wrote:
>> Hi,
>>
>> The scheduler is currently not doing much to help performance on systems with
>> asymmetric compute capacities (read ARM big.LITTLE). This series improves the
>> situation with a few tweaks mainly to the task wake-up path that considers
>> compute capacity at wake-up and not just whether a cpu is idle for these
>> systems. This gives us consistent, and potentially higher, throughput in
>> partially utilized scenarios. SMP behaviour and performance should be
>> unaffected.
>
> Peter, Vincent: Any chance you have time for another look?

I will have a look but have only partial network access for now

Vincent
>
> Thanks,
> Morten