Re: mpt Serious performance issues

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Wed, Dec 22, 2010 at 11:20:49AM +0100, Stephan wrote:
> Hm, as a workaround, I managed to destroy the RAID-set and acessed the
> disks directly.
> 
> Does anybody have an idea what causes the poor perfomance on hardware
> RAID-sets?
> 
> I saw the same with the ciss driver which is as slow on 5.1 but very
> fast on 5.99.39 (up to 180MB/s write speed).

yes, this driver has been fixed in HEAD, and I remember the fix has
been pulled up after 5.1 (on 2010/11/21)

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