Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757239AbcK2Lo3 (ORCPT ); Tue, 29 Nov 2016 06:44:29 -0500 Received: from mail-wm0-f47.google.com ([74.125.82.47]:35408 "EHLO mail-wm0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757003AbcK2LoV (ORCPT ); Tue, 29 Nov 2016 06:44:21 -0500 Date: Tue, 29 Nov 2016 11:44:19 +0000 From: Matt Fleming To: Peter Zijlstra Cc: Morten Rasmussen , Vincent Guittot , mingo@kernel.org, linux-kernel@vger.kernel.org, dietmar.eggemann@arm.com, kernellwp@gmail.com, yuyang.du@intel.com, umgwanakikbuti@gmail.com Subject: Re: [PATCH 1/2 v2] sched: fix find_idlest_group for fork Message-ID: <20161129114419.GC20785@codeblueprint.co.uk> References: <1480088073-11642-1-git-send-email-vincent.guittot@linaro.org> <1480088073-11642-2-git-send-email-vincent.guittot@linaro.org> <20161129105758.GA1716@e105550-lin.cambridge.arm.com> <20161129114243.GF3092@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20161129114243.GF3092@twins.programming.kicks-ass.net> 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: 397 Lines: 10 On Tue, 29 Nov, at 12:42:43PM, Peter Zijlstra wrote: > > IIRC, and my pounding head really doesn't remember much, the comment > reads like we need the large fudge factor because hackbench. That is, > hackbench would like this test to go away, but others benchmarks will > tank. > > Now, if only I would've written down which benchmarks that were.. awell. Going out on a limb: Chris' schbench?