Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261322AbVE2OKN (ORCPT ); Sun, 29 May 2005 10:10:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261317AbVE2OKN (ORCPT ); Sun, 29 May 2005 10:10:13 -0400 Received: from cpu1185.adsl.bellglobal.com ([207.236.110.166]:46861 "EHLO mail.rtr.ca") by vger.kernel.org with ESMTP id S261324AbVE2OJz (ORCPT ); Sun, 29 May 2005 10:09:55 -0400 Message-ID: <4299CD31.8020805@rtr.ca> Date: Sun, 29 May 2005 10:09:53 -0400 From: Mark Lord User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.7) Gecko/20050420 Debian/1.7.7-2 X-Accept-Language: en, en-us MIME-Version: 1.0 To: Michael Thonke Cc: Jens Axboe , Jeff Garzik , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Playing with SATA NCQ References: <20050526140058.GR1419@suse.de> <429793C8.8090007@gmail.com> <42979C4F.8020007@pobox.com> <42979FA3.1010106@gmail.com> <20050528121258.GA17869@suse.de> <4299BD23.6010004@gmail.com> In-Reply-To: <4299BD23.6010004@gmail.com> 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 Content-Length: 599 Lines: 13 My basic hdparm timing test shouldn't show much of a difference with NCQ tests, becase hdparm just does a single request at a time, and waits for the results before issuing another. Now, kernel read-ahead may result in some command overlap and a slight throughput increase, but.. Something like dbench and/or bonnie++ are more appropriate here. Cheers - 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/