On Fri, 27 Dec 2002, xio wrote:
> Frank Gevaerts wrote:
> > Probably not needed. Try running hdparm to enable DMA.
>
> I agree. First thing after a Debian install I always put the following
> line into /etc/init.d/bootmisc.sh:
>
> /sbin/hdparm -d 1 /dev/hd[abc]
>
> Works like a treat!
# hdparm -d 1 /dev/hda
/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off)
# hdparm -I
<...>
Capabilities:
LBA, IORDY(cannot be disabled)
bytes avail on r/w long: 4 Queue depth: 1
Standby timer values: spec'd by Standard, no device specific minimum
R/W multiple sector transfer: Max = 16 Current = ?
Advanced power management level: unknown setting (0x0000)
DMA: mdma0 mdma1 *mdma2 udma0 udma1 udma2 udma3 udma4 udma5
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=240ns IORDY flow control=120ns
<...>
Do I want to fiddle with PIO?
This is on a 486DX2-25 board.
- Bruce
--
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
