From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754491AbYBRFAt (ORCPT ); Mon, 18 Feb 2008 00:00:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751100AbYBRFAi (ORCPT ); Mon, 18 Feb 2008 00:00:38 -0500 Received: from e28smtp06.in.ibm.com ([59.145.155.6]:35572 "EHLO e28esmtp06.in.ibm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750857AbYBRFAX (ORCPT ); Mon, 18 Feb 2008 00:00:23 -0500 Message-ID: <47B91008.8050505@linux.vnet.ibm.com> Date: Mon, 18 Feb 2008 10:26:40 +0530 From: Balbir Singh Reply-To: balbir@linux.vnet.ibm.com Organization: IBM User-Agent: Thunderbird 2.0.0.9 (X11/20071115) MIME-Version: 1.0 To: "Zhang, Yanmin" CC: vatsa@linux.vnet.ibm.com, LKML , Ingo Molnar , Peter Zijlstra Subject: Re: 2.6.25-rc1: volanoMark 45% regression References: <1202895028.3027.27.camel@ymzhang> <47B2BC2C.80100@linux.vnet.ibm.com> <20080213120708.GA16231@linux.vnet.ibm.com> <1202974901.3027.58.camel@ymzhang> <1203067505.3027.178.camel@ymzhang> In-Reply-To: <1203067505.3027.178.camel@ymzhang> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Zhang, Yanmin wrote: >> >>> Did you have >>> CONFIG_FAIR_USER_SCHED enabled in both cases? >> Yes. >> >> CONFIG_FAIR_GROUP_SCHED=y >> CONFIG_FAIR_USER_SCHED=y >> Interesting that you have CONFIG_FAIR_USER_SCHED. Do you have any other users on the system (are they running anything at the time of the benchmark)? Could you turn off CONFIG_FAIR_USER_SCHED and turn on CONFIG_FAIR_GROUP_SCHED. I am going to run some tests with 2.6.25-rc2 and Volanomark and see how that goes. -- Warm Regards, Balbir Singh Linux Technology Center IBM, ISTL