From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755499AbcGLOiD (ORCPT ); Tue, 12 Jul 2016 10:38:03 -0400 Received: from foss.arm.com ([217.140.101.70]:59667 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755450AbcGLOiA (ORCPT ); Tue, 12 Jul 2016 10:38:00 -0400 Date: Tue, 12 Jul 2016 15:39:33 +0100 From: Morten Rasmussen To: Peter Zijlstra Cc: vincent.guittot@linaro.org, dietmar.eggemann@arm.com, yuyang.du@intel.com, mgalbraith@suse.de, mingo@redhat.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 00/13] sched: Clean-ups and asymmetric cpu capacity support Message-ID: <20160712143933.GL12540@e105550-lin.cambridge.arm.com> References: <1466615004-3503-1-git-send-email-morten.rasmussen@arm.com> <20160711083353.GE12540@e105550-lin.cambridge.arm.com> <20160712132548.GR30909@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160712132548.GR30909@twins.programming.kicks-ass.net> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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.