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). The changelog tells about "tagged queueing"... Regards, Stephan 2010/11/29 Manuel Bouyer <bou...@antioche.eu.org>: > On Mon, Nov 29, 2010 at 09:05:16AM +0100, Stephan wrote: >> Hi, >> >> this is the reading result with 64k blocks after rebooting: >> >> >> # dd if=myfile of=/dev/null bs=64k >> 5636+0 records in >> 5636+0 records out >> 369360896 bytes transferred in 57.104 secs (6468214 bytes/sec) >> >> >> The volume is RAID-1. I wonder why the NetBSD driver is not in sync >> with the FreeBSD one as that appers to be actively maintained. > > because the kernel interfaces are completely different; porting require > a substancial effort, and hardware for tests. > > -- > Manuel Bouyer <bou...@antioche.eu.org> > NetBSD: 26 ans d'experience feront toujours la difference > -- >
