31.08.2012 22:54, Eugene Grosbein пишет:

> I've rebuilt by kernel with SCHED_ULE and excluded PREEMPTION.
> Stock driver works without changes in behaviour and driver from HEAD
> now works very similar to old one: LA is not higher than 2 and
> userland is pretty responsive. Also, transfer speed with new driver is
> several percent more. That's good.
> 
> Care to explain such dramatic difference for new driver
> with/without PREEMPTION for relatively slow uniprocessor system?
> 
>> And run 4BSD + no preemption, try again?
I've tried 4BSD without preemption too. Can't see any difference
from ULE without preemption. Should I stick with 4BSD for UP system?

Eugene Grosbein
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