From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262017AbVFGWbp (ORCPT ); Tue, 7 Jun 2005 18:31:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262018AbVFGWbp (ORCPT ); Tue, 7 Jun 2005 18:31:45 -0400 Received: from mail.dvmed.net ([216.237.124.58]:41679 "EHLO mail.dvmed.net") by vger.kernel.org with ESMTP id S262017AbVFGWbd (ORCPT ); Tue, 7 Jun 2005 18:31:33 -0400 Message-ID: <42A62040.2080808@pobox.com> Date: Tue, 07 Jun 2005 18:31:28 -0400 From: Jeff Garzik User-Agent: Mozilla Thunderbird 1.0.2-6 (X11/20050513) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Aleksey Gorelov CC: Kumar Gala , Linux Kernel list Subject: Re: stupid SATA questions References: <0EF82802ABAA22479BC1CE8E2F60E8C3216B53@scl-exch2k3.phoenix.com> In-Reply-To: <0EF82802ABAA22479BC1CE8E2F60E8C3216B53@scl-exch2k3.phoenix.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: 0.0 (/) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Aleksey Gorelov wrote: > > >>From: linux-kernel-owner@vger.kernel.org >>[mailto:linux-kernel-owner@vger.kernel.org] On Behalf Of Jeff Garzik >>Sent: Tuesday, June 07, 2005 11:01 AM >>To: Kumar Gala >>Cc: Linux Kernel list >>Subject: Re: stupid SATA questions >> >>Kumar Gala wrote: >> >>>These questions were posed to me and I was hoping someone would have >>>better knowledge about the works and usage of SATA then I >> >>do. All of >> >>>these questions are around understanding how important the >> >>performance >> >>>of PIO mode is. >>> >>>How often would one run in PIO mode? Why would one run in PIO mode? >> >>Never. No idea. :) > > > Some BIOSes/option ROMs do. Especially SATA RAID ones. > But unless you are using BIOS interrupts... It doesn't matter what BIOS does, Linux SATA drivers don't use the BIOS. Jeff