From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751903AbeBWQsB (ORCPT ); Fri, 23 Feb 2018 11:48:01 -0500 Received: from merlin.infradead.org ([205.233.59.134]:39972 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751728AbeBWQsA (ORCPT ); Fri, 23 Feb 2018 11:48:00 -0500 Date: Fri, 23 Feb 2018 17:47:52 +0100 From: Peter Zijlstra To: Morten Rasmussen Cc: mingo@redhat.com, valentin.schneider@arm.com, dietmar.eggemann@arm.com, vincent.guittot@linaro.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 4/7] sched/fair: Avoid unnecessary balancing of asymmetric capacity groups Message-ID: <20180223164752.GW25181@hirez.programming.kicks-ass.net> References: <1518711654-23503-1-git-send-email-morten.rasmussen@arm.com> <1518711654-23503-5-git-send-email-morten.rasmussen@arm.com> <20180219151011.GI25181@hirez.programming.kicks-ass.net> <20180220163352.GD4589@e105550-lin.cambridge.arm.com> <20180220182605.GI25201@hirez.programming.kicks-ass.net> <20180223163806.GE4589@e105550-lin.cambridge.arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180223163806.GE4589@e105550-lin.cambridge.arm.com> User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Feb 23, 2018 at 04:38:06PM +0000, Morten Rasmussen wrote: > > Or am I now terminally confused again? > > No, I think you are right, or I'm equally confused. :-) Would it make sense to also track max_capacity, but then based on the value before RT scaling ? That should readily be able to distinguish between big and little clusters, although then DynamiQ would still completely ruin things.