Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750858AbWHGAmf (ORCPT ); Sun, 6 Aug 2006 20:42:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750859AbWHGAmf (ORCPT ); Sun, 6 Aug 2006 20:42:35 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:18858 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S1750855AbWHGAmf (ORCPT ); Sun, 6 Aug 2006 20:42:35 -0400 Subject: Re: Mismatch between hdaprm and sdparm output From: Arjan van de Ven To: Keith Owens Cc: Jeff Garzik , linux-kernel@vger.kernel.org In-Reply-To: <23691.1154910746@ocs3.ocs.com.au> References: <23691.1154910746@ocs3.ocs.com.au> Content-Type: text/plain Organization: Intel International BV Date: Mon, 07 Aug 2006 02:42:23 +0200 Message-Id: <1154911344.3054.153.camel@laptopd505.fenrus.org> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 663 Lines: 15 On Mon, 2006-08-07 at 10:32 +1000, Keith Owens wrote: > NEC Versa S5200 laptop with FUJITSU MHV2080B SATA disk. Kernel > 2.6.16.21-0.13-smp (suselinux 10.1) using ata_piix. hdparm and sdparm > give inconsistent results, which one should I believe? My main concern > is write caching (XFS filesystem). well write caching you should be able to benchmark easily.. does, say, dbench or tiobench show any difference ? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/