Bad SATA (Sil 3112A) performance with kernel 2.6.8

[Jeff Vian]

On Mon, 2004-08-30 at 04:31, Andrey Andreev wrote:
> James Wilkinson wrote:
> 
> >>[andrei at brie andrei]$ sudo /sbin/hdparm -t -T /dev/sda
> >>/dev/sda:
> >> Timing buffer-cache reads:   1564 MB in  2.00 seconds = 780.95 MB/sec
> >> Timing buffered disk reads:   44 MB in  3.12 seconds =  14.11 MB/sec
> >>
> >>Which is pretty awfuly slow, compared to 2.6.6 (over 50 MB/sec). 
> > 
> > 
> > Slow enough for PIO: what does hdparm -d /dev/sda report?
> 
> /dev/sda:
>   operation not supported on SCSI disks
> 
> I noticed that hdparm is not really very useful on SCSI disks. What'd be 
> its equivalent for SCSI?
> 
> //Andro
> 

hdparm works for me on scsi.  FC2 and fully updated.