On Wed, Apr 20, 2005 at 06:52:59AM +0200, Jean-Edouard BABIN wrote:
> I have installed NetBSD 2.0.2 on a new computer, but when i do "cp file1
> file2" i have a little problem, this do a lot of interrupt so the copy is
> very very slow
[..]
> pciide0 at pci0 dev 20 function 1
> pciide0: ATI Technologies product 0x4349 (rev. 0x00)
> pciide0: bus-master DMA support present, but unused (no driver support)

This is your problem, see man pciide - you are using PIO mode to talk
to the disks, which is unusable slow.

You need a special driver for your hardware that uses bus master dma,
which in your case should be ixpide.

Martin