On Sun, Jan 23, 2005 at 09:09:12PM +0000, Dieter wrote:
> [...]
> This Latency Timer is getting stored somewhere, I booted my
> old kernel to do the same dd and see if I lost any throughput,
> but still have Latency Timer of 0x40.  Given this, perhaps

It's in the PCI adapters registers. A power cycle would probably get them
back to 0.

> pcictl could be extended to allow changing these settings?

I'm not sure we're allowed to change it once the adapter is in use.

> If this is stored in one of those devices that can only be
> written 'x' number of times you wouldn't want to write it every
> time you boot.

No problems writing them at boot. In fact the SRM should do it.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 26 ans d'experience feront toujours la difference
--