lkml.org 
[lkml]   [2009]   [Aug]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Extremely slow IO with a PCMCIA CompactFlash adapter
On 08/01/2009 08:02 AM, Jack Byer wrote:
> 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
>
>
Can you post the dmesg output from detecting the device?


\
 
 \ /
  Last update: 2009-08-01 20:35    [W:0.081 / U:3.132 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site