Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759326AbXEaDYm (ORCPT ); Wed, 30 May 2007 23:24:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756079AbXEaDYe (ORCPT ); Wed, 30 May 2007 23:24:34 -0400 Received: from rtr.ca ([64.26.128.89]:3887 "EHLO mail.rtr.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756004AbXEaDYd (ORCPT ); Wed, 30 May 2007 23:24:33 -0400 Message-ID: <465E3FF0.9010709@rtr.ca> Date: Wed, 30 May 2007 23:24:32 -0400 From: Mark Lord User-Agent: Thunderbird 2.0.0.0 (X11/20070326) MIME-Version: 1.0 To: Daniel J Blueman Cc: bzolnier@gmail.com, linux-ide@vger.kernel.org, Linux Kernel Subject: Re: Compact Flash performance... References: <6278d2220705301510y2d81f69eu38fb778d32de05e1@mail.gmail.com> In-Reply-To: <6278d2220705301510y2d81f69eu38fb778d32de05e1@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 780 Lines: 18 Daniel J Blueman wrote: > I have a SanDisk Extreme IV 4GB CF card, capable of 40MB/s read, but > am seeing 30MB/s read [1], connected directly to the IDE bus on my > ICH8 controller. > > How can I find out if this would be a timing or configuration issue? > On 2.6.20.5 [2], the 120nS timing looks to be right [3], but perhaps > no multi-word transfer is hurting here...alas, it can't be enabled > with the libata subsystem and 'hdparm -m', so what else? Please post the output from "hdparm --Istdout /dev/sdb" for this card. Thanks - 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/