Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933250AbcK1RDu (ORCPT ); Mon, 28 Nov 2016 12:03:50 -0500 Received: from mail-wj0-f179.google.com ([209.85.210.179]:33848 "EHLO mail-wj0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754278AbcK1RDl (ORCPT ); Mon, 28 Nov 2016 12:03:41 -0500 Date: Mon, 28 Nov 2016 17:02:56 +0000 From: Matt Fleming To: Vincent Guittot Cc: peterz@infradead.org, mingo@kernel.org, linux-kernel@vger.kernel.org, Morten.Rasmussen@arm.com, dietmar.eggemann@arm.com, kernellwp@gmail.com, yuyang.du@intel.com, umgwanakikbuti@gmail.com Subject: Re: [PATCH 0/2 v2] sched: improve spread of tasks during fork Message-ID: <20161128170256.GB20785@codeblueprint.co.uk> References: <1480088073-11642-1-git-send-email-vincent.guittot@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1480088073-11642-1-git-send-email-vincent.guittot@linaro.org> User-Agent: Mutt/1.5.24+41 (02bc14ed1569) (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 806 Lines: 19 On Fri, 25 Nov, at 04:34:31PM, Vincent Guittot wrote: > This patchset was originally 1 patch but a perf regression happened during the rebase. > The patch 01 fixes the perf regression discovered in tip/sched/core during the > rebase. > The patch 02 is the rebase of the patch that fixes the regression raised by > Matt Fleming [1]. > > [1] https://lkml.org/lkml/2016/10/18/206 > > Vincent Guittot (2): > sched: fix find_idlest_group for fork > sched: use load_avg for selecting idlest group > > kernel/sched/fair.c | 54 +++++++++++++++++++++++++++++++++++++++++++---------- > 1 file changed, 44 insertions(+), 10 deletions(-) FYI, I'm running both of these patches through the SUSE performance testing grid right now. I'll let you know as soon as I have results (should be in the next few days).