Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754385AbcJDVZK (ORCPT ); Tue, 4 Oct 2016 17:25:10 -0400 Received: from mail-wm0-f54.google.com ([74.125.82.54]:37448 "EHLO mail-wm0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753722AbcJDVZJ (ORCPT ); Tue, 4 Oct 2016 17:25:09 -0400 Date: Tue, 4 Oct 2016 22:25:06 +0100 From: Matt Fleming To: Vincent Guittot Cc: Dietmar Eggemann , Peter Zijlstra , Ingo Molnar , linux-kernel , Mike Galbraith , Yuyang Du Subject: Re: [PATCH] sched/fair: Do not decay new task load on first enqueue Message-ID: <20161004212505.GR16071@codeblueprint.co.uk> References: <20160923115808.2330-1-matt@codeblueprint.co.uk> <20160928101422.GR5016@twins.programming.kicks-ass.net> <20160928111912.GU5016@twins.programming.kicks-ass.net> <93981a94-8aff-edc9-b964-9f31656ad577@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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: 396 Lines: 11 On Wed, 28 Sep, at 05:00:20AM, Vincent Guittot wrote: > > Matt, > > May be you can try this patch which uses utilization in > find_idlest_group. So even if runnable_load_avg is null, the > utilization should not and another cpu will be chosen > https://patchwork.kernel.org/patch/9306939/ Unfortunately it doesn't restore performance for my tests. I'll dig into why that is the case tomorrow.