From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758840AbcGKMou (ORCPT ); Mon, 11 Jul 2016 08:44:50 -0400 Received: from mail-lf0-f48.google.com ([209.85.215.48]:33535 "EHLO mail-lf0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753830AbcGKMor (ORCPT ); Mon, 11 Jul 2016 08:44:47 -0400 MIME-Version: 1.0 In-Reply-To: <20160711083353.GE12540@e105550-lin.cambridge.arm.com> References: <1466615004-3503-1-git-send-email-morten.rasmussen@arm.com> <20160711083353.GE12540@e105550-lin.cambridge.arm.com> From: Vincent Guittot Date: Mon, 11 Jul 2016 14:44:26 +0200 Message-ID: Subject: Re: [PATCH v2 00/13] sched: Clean-ups and asymmetric cpu capacity support To: Morten Rasmussen Cc: Peter Zijlstra , Dietmar Eggemann , Yuyang Du , mgalbraith@suse.de, "mingo@redhat.com" , linux-kernel Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Morten, On 11 July 2016 at 10:33, 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? I will have a look but have only partial network access for now Vincent > > Thanks, > Morten