From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265218AbUETSvH (ORCPT ); Thu, 20 May 2004 14:51:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265219AbUETSvH (ORCPT ); Thu, 20 May 2004 14:51:07 -0400 Received: from mail8.fw-bc.sony.com ([160.33.98.75]:52457 "EHLO mail8.fw-bc.sony.com") by vger.kernel.org with ESMTP id S265218AbUETSvE (ORCPT ); Thu, 20 May 2004 14:51:04 -0400 Message-ID: <40ACFE39.2060901@am.sony.com> Date: Thu, 20 May 2004 11:51:37 -0700 From: Tim Bird User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: john weber CC: linux-kernel@vger.kernel.org Subject: Re: Performance Tuning References: <20040520120514.GA29540@sixbit.org> In-Reply-To: <20040520120514.GA29540@sixbit.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org john weber wrote: > I've been comparing kernel compile stats online to those I get > on my own machine, and I am baffled. > > Kernel compiles take 6m38s on my P4 2.8GHz (with HT enabled) and > 512 MB RAM as compared to 20-30 seconds reported by folks online. > I am running kernel 2.6.6. > > While I understand that this varies with the config, I also don't > see why it should vary so much. Does anyone have any pointers on > how I could best troubleshoot my performance? I have used compiler cache, and gotten about 30-second compiles, after the first one, on a P4 3.0GHz. See: http://ccache.samba.org/ However, this isn't addressing performance of your machine, per-se. ============================= Tim Bird Architecture Group Co-Chair CE Linux Forum Senior Staff Engineer Sony Electronics E-mail: Tim.Bird@am.sony.com =============================