Be sure to check your performance in making changes with hdparm. On my
Powerbook, using Phil's settings with an earlier iteration of the 2.2.19
kernel, I got the opposite effect:
/dev/hda:
Timing buffered disk reads: 64 MB in 11.34 seconds = 5.64 MB/sec
[root@powerbook /root]# hdparm -X66 -d1 -u1 -m16 -c3 /dev/hda
/dev/hda:
setting 32-bit I/O support flag to 3
HDIO_SET_32BIT failed: Invalid argument
setting multcount to 16
setting unmaskirq to 1 (on)
setting using_dma to 1 (on)
setting xfermode to 66 (UltraDMA mode2)
multcount = 16 (on)
I/O support = 0 (default 16-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
[root@powerbook /root]# hdparm -t /dev/hda
/dev/hda:
Timing buffered disk reads: 64 MB in 47.44 seconds = 1.35 MB/sec
=( YMMV,
Stew Benedict
--
MandrakeSoft OH/TN, USA http://perso.mandrakesoft.com/~sbenedict/
On Tue, 26 Jun 2001, Phil Lavigna wrote:
> I tried various settings from
> http://linux.oreillynet.com/pub/a/linux/2000/06/29/hdparm.html?page=2 and
> found one that made a great improvement without locking up the machine:
>
> [root@localhost phil]# hdparm -X66 -d1 -u1 -m16 -c3 /dev/hda
>
