System Requirements

[Samuel Hocevar]

On Sat, Apr 07, 2001, PhiloVivero wrote:

>      CREATIVE DVD-ROM DVD6240E (6x)

   Did you enable DMA for this drive ? I suspect your crap performance
come from this. You'll have to use hdparm(8) for this, it's probably a
package in your distribution.

   Assuming /dev/hdc is your DVD device:

  * "hdparm -d 1 /dev/hdc" will activate (Ultra)DMA for your drive.

  * "hdparm -c 1 /dev/hdc" will activate 32-bit transfers (instead of the
   default 16-bit).

  * "hdparm -X 34 /dev/hdc" (resp. "hdparm -X 66 /dev/hdc") will activate
   DMA (resp. UltraDMA) mode 2 transfers.

   Be careful, the -X option is dangerous and will crash your machine if
the drive doesn't support the mode you are requesting. And it shouldn't
be necessary to use -X, try "-d 1" and "-c 1" for a beginning, you might
get better results. For more information, see "man hdparm".

Regards,
-- 
Sam.