From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750914AbXBMRMg (ORCPT ); Tue, 13 Feb 2007 12:12:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750937AbXBMRMg (ORCPT ); Tue, 13 Feb 2007 12:12:36 -0500 Received: from havoc.gtf.org ([69.61.125.42]:44899 "EHLO havoc.gtf.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750914AbXBMRMf (ORCPT ); Tue, 13 Feb 2007 12:12:35 -0500 Date: Tue, 13 Feb 2007 12:12:33 -0500 From: Jeff Garzik To: Alan Cc: "Martin A. Fink" , linux-kernel@vger.kernel.org Subject: Re: SATA-performance: Linux vs. FreeBSD Message-ID: <20070213171233.GA6798@havoc.gtf.org> References: <200702121502.17130.fink@mpe.mpg.de> <200702121856.29729.fink@mpe.mpg.de> <20070212190835.20f9b92f@localhost.localdomain> <200702131034.22639.fink@mpe.mpg.de> <20070213112527.59eaa504@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070213112527.59eaa504@localhost.localdomain> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Feb 13, 2007 at 11:25:27AM +0000, Alan wrote: > > So where is the difference between SATA-I and SATA-II ? > > All physical side if they are on the same controller when you do the > tests. Mostly latency, SATA-II is a highly confusing marketing term. It is /not/ a technical term. In some cases there are NO differences between SATA-I and SATA-II. You can find 1.5Gbps non-NCQ-supporting devices claiming SATA-II. Similarly, there is no "SATA version" word in the IDENTIFY DEVICE page, like there are "ATA version" words. Jeff