Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161103AbWASSOb (ORCPT ); Thu, 19 Jan 2006 13:14:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161116AbWASSOa (ORCPT ); Thu, 19 Jan 2006 13:14:30 -0500 Received: from e35.co.us.ibm.com ([32.97.110.153]:55180 "EHLO e35.co.us.ibm.com") by vger.kernel.org with ESMTP id S1161103AbWASSOa (ORCPT ); Thu, 19 Jan 2006 13:14:30 -0500 Subject: Re: [2.6 patch] the scheduled removal of the obsolete raw driver From: Badari Pulavarty To: Adrian Bunk Cc: Andrew Morton , lkml , "Chen, Kenneth W" In-Reply-To: <20060119165832.GS19398@stusta.de> References: <20060119030251.GG19398@stusta.de> <20060118194103.5c569040.akpm@osdl.org> <1137689071.4966.190.camel@dyn9047017102.beaverton.ibm.com> <20060119165832.GS19398@stusta.de> Content-Type: text/plain Date: Thu, 19 Jan 2006 10:14:47 -0800 Message-Id: <1137694497.4966.200.camel@dyn9047017102.beaverton.ibm.com> Mime-Version: 1.0 X-Mailer: Evolution 2.0.4 (2.0.4-4) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 800 Lines: 24 On Thu, 2006-01-19 at 17:58 +0100, Adrian Bunk wrote: > On Thu, Jan 19, 2006 at 08:44:31AM -0800, Badari Pulavarty wrote: > >... > > But again, its really useful to have raw driver to do simple "dd" tests > > to test raw performance for disks (for comparing with filesystems, block > > devices etc..). Without that, we need to add option to "dd" for > > O_DIRECT. > > The oflag=direct option was added to GNU coreutils in version 5.3.0. Cool. It works - I have no complaints, then :) # dd if=/dev/sda iflag=direct of=/dev/null bs=64k Thanks, Badari - 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/