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

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Message-ID: <20160712143933.GL12540@e105550-lin.cambridge.arm.com>
Date:	Tue, 12 Jul 2016 15:39:33 +0100
From:	Morten Rasmussen <morten.rasmussen@....com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	vincent.guittot@...aro.org, dietmar.eggemann@....com,
	yuyang.du@...el.com, mgalbraith@...e.de, mingo@...hat.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 00/13] sched: Clean-ups and asymmetric cpu capacity
 support

On Tue, Jul 12, 2016 at 03:25:48PM +0200, Peter Zijlstra wrote:
> On Mon, Jul 11, 2016 at 09:33:54AM +0100, Morten Rasmussen 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?
> 
> So no fundamental objections, just these few issues that need sorting.

Thanks for the review. I will put together a v3.