Wojciech Puchar writes:
> >
> >              wd0             wd1            cpu
> >    KB/t t/s MB/s   KB/t t/s MB/s us ni sy in id
> >
> >   64.00 200 12.50  64.00 209 13.0   2  1  0  0 97
> >   64.00 210 13.12  64.00 211 13.1   0  0  2  0 98
> >   64.00 222 13.86  64.00 221 13.8   0  0  0  0 100
> >   63.69 177 11.02  64.00 270 16.8   3  0  1  0 96
> >
> > Anyone have a good model for what is going on here?
> 
> a) you put them on master/slave config
> b) it's VIA chipset

I would have to go with "b". ;-)

I see something similar when I test with two disks on the master of
IDE cable-1 and IDE cable-2.

I wonder if folks that don't have VIA chips see a similar
more-than-linear decrease in disk IO speed when running two IDE's at
full bore.

-wolfgang
-- 
Wolfgang Rupprecht    <wolfgang@wsrcc.com>     http://www.wsrcc.com/wolfgang/
Coming soon: GPS mapping tools for Open Systems. http://www.gnomad-mapping.com/