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Re: mpt Serious performance issues
Hm, as a workaround, I managed to destroy the RAID-set and acessed the
Does anybody have an idea what causes the poor perfomance on hardware
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"...
2010/11/29 Manuel Bouyer <bouyer%antioche.eu.org@localhost>:
> On Mon, Nov 29, 2010 at 09:05:16AM +0100, Stephan wrote:
>> 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 <bouyer%antioche.eu.org@localhost>
> NetBSD: 26 ans d'experience feront toujours la difference
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