From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753554Ab3BVFI2 (ORCPT ); Fri, 22 Feb 2013 00:08:28 -0500 Received: from mout.gmx.net ([212.227.17.20]:54667 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753203Ab3BVFIZ (ORCPT ); Fri, 22 Feb 2013 00:08:25 -0500 X-Authenticated: #14349625 X-Provags-ID: V01U2FsdGVkX19AkfgqEl9A1dYBAWf1b4vPhUDetSVU6d1uGAwVh7 eJt3/Ui8x+qZdX Message-ID: <1361509697.5817.65.camel@marge.simpson.net> Subject: Re: [RFC PATCH v3 0/3] sched: simplify the select_task_rq_fair() From: Mike Galbraith To: Michael Wang Cc: Peter Zijlstra , Ingo Molnar , LKML , Paul Turner , Andrew Morton , alex.shi@intel.com, Ram Pai , "Nikunj A. Dadhania" , Namhyung Kim Date: Fri, 22 Feb 2013 06:08:17 +0100 In-Reply-To: <5126D9E0.7040108@linux.vnet.ibm.com> References: <51079178.3070002@linux.vnet.ibm.com> <20130220104958.GA9152@gmail.com> <5125A7C8.8020308@linux.vnet.ibm.com> <1361442055.26780.3.camel@laptop> <5126D9E0.7040108@linux.vnet.ibm.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2013-02-22 at 10:37 +0800, Michael Wang wrote: > According to the testing result, I could not agree this purpose of > wake_affine() benefit us, but I'm sure that wake_affine() is a terrible > performance killer when system is busy. (hm, result is singular.. pgbench in 1:N mode only?)