beige G3 optimize disk speed ?

[francke <francke@acidbeats.de>]

Hi all,

i installed a new ata 100 7200 RPM Seagate barracuda in my
beige G3/266 (using the internal ide, setting new drive to master,
removed old). running debian woody tesing.
i tweaked the dma settings allready with hdparm (-d1). if running
a hdparm disk test (-t) i get: 64 MB in  5.22 seconds = 12.26 MB/sec

seems a bit slow to me.   any suggestion how to get out more ?
kernel is 2.4.19, all pmac G3 specific settings are compiled in.

greets and thanks.

jens.