From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751251AbXBMKSY (ORCPT ); Tue, 13 Feb 2007 05:18:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751250AbXBMKSY (ORCPT ); Tue, 13 Feb 2007 05:18:24 -0500 Received: from cantor2.suse.de ([195.135.220.15]:54980 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751245AbXBMKSX (ORCPT ); Tue, 13 Feb 2007 05:18:23 -0500 To: Arjan van de Ven Cc: "Martin A. Fink" , Matthias Schniedermeyer , linux-kernel@vger.kernel.org Subject: Re: SATA-performance: Linux vs. FreeBSD References: <200702121502.17130.fink@mpe.mpg.de> <200702121856.29729.fink@mpe.mpg.de> <45D0F8EE.7020604@citd.de> <200702131025.15964.fink@mpe.mpg.de> <1171361290.12771.77.camel@laptopd505.fenrus.org> From: Andi Kleen Date: 13 Feb 2007 12:18:21 +0100 In-Reply-To: <1171361290.12771.77.camel@laptopd505.fenrus.org> Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Arjan van de Ven writes: > > > > > The problem is: FreeBSD is fast, but lacks of some special drivers. Linux has > > all drivers but access to harddisk is unpredictable and thus unreliable! > > What can I do?? > > > there's several tunables you can do; [...] Well Linux certainly should perform better out of the box on such a simple configuration. Something is wrong especially when the CPU usage is so high. That is why I suggested oprofile. Perhaps contact linux-ide@vger.kernel.org (if the results show driver problems) and linux-mm@kvack.org (otherwise) with the results. -Andi