From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751668AbZHAOBp (ORCPT ); Sat, 1 Aug 2009 10:01:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751307AbZHAOBo (ORCPT ); Sat, 1 Aug 2009 10:01:44 -0400 Received: from main.gmane.org ([80.91.229.2]:35730 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751368AbZHAOBo (ORCPT ); Sat, 1 Aug 2009 10:01:44 -0400 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: Jack Byer Subject: Extremely slow IO with a PCMCIA CompactFlash adapter Followup-To: gmane.linux.kernel Date: Sat, 01 Aug 2009 09:02:22 -0500 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7Bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: ppp-70-244-161-110.dsl.rcsntx.swbell.net User-Agent: KNode/0.99.01 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I have an old digital camera that stores its pictures on a 340 MB IBM microdrive. I am trying to transfer to pictures from the camera to my computer but can not find the special non-standard USB cable. The camera did come with a CompactFlash to PCMCIA adapter, so tried connecting it to my laptop. I was able to install the correct modules and mount the drive, but accessing it is very slow (5.0 kBps read / 3.8 kBps write). Is this expected behavior? Is there any setup I am missing that would make this faster? Kernel version is 2.6.30.3 pccardctl ls: Socket 0 Bridge: [yenta_cardbus] (bus ID: 0000:00:0a.0) Socket 0 Device 0: [pata_pcmcia] (bus ID: 0.0) pccardctl info: PRODID_1="IBM" PRODID_2="microdrive" PRODID_3="" PRODID_4="" MANFID=00a4,0000 FUNCID=4 time output to write a 1 MB file to the drive: real 4m29.476s user 0m0.000s sys 0m0.000s time output to read a 1 MB file from the drive: real 3m25.600s user 0m0.000s sys 0m0.000s