From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757965AbcGKIcZ (ORCPT ); Mon, 11 Jul 2016 04:32:25 -0400 Received: from foss.arm.com ([217.140.101.70]:51327 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757840AbcGKIcW (ORCPT ); Mon, 11 Jul 2016 04:32:22 -0400 Date: Mon, 11 Jul 2016 09:33:54 +0100 From: Morten Rasmussen To: peterz@infradead.org, vincent.guittot@linaro.org Cc: 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: <20160711083353.GE12540@e105550-lin.cambridge.arm.com> References: <1466615004-3503-1-git-send-email-morten.rasmussen@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1466615004-3503-1-git-send-email-morten.rasmussen@arm.com> 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 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? Thanks, Morten