Re:PIO modes & Triton

Tekno Soft Snc (
Tue, 3 Dec 96 20:05:30 CET

bk> Old hdparm has two options concerning PIO modes :
bk> -p and -X Now work only -X. To set PIO4 on your
bk> drive use hdparm -c1 -X12 /dev/hda but if hdparm
bk> -i /dev/hda on your drive reports DMA : Fast, I
bk> recommend use hdparm -d1 -X34 /dev/hda. Try both
bk> and compare performance. But note that DMA mode
bk> less CPU intensive.

Currently my hdd setup is:

/usr/local/sbin/hdparm -m 8 -a 8 -X 34 -c 1 -A 1 -u 0 -d 1 /dev/hda

hdparm -t /dev/hda reports

Timing buffered disk reads: 16 MB in 3.37 seconds = 4.60 MB/sec

yes, it have a good transfer rate ... but what is the PIO mode ?
When I try with

hdparm -X 34 /dev/hda

setting xfermode to 34 (multiword DMA mode2)


Roberto Fichera - email

Xmeo ver.3.0 Alpha for Linux & Windows