responsiveness during IO tasks

[Alexander Motin]

Julian Elischer wrote:
>> Doug Barton wrote:
>> No problem, just let's hunt things down. I'll wait for that larger post.
>> In meantime, if it is related to eventtimers, it would be good to
>> collect more detailed information. You could try to make timer run
>> during idle (kern.eventtimer.idletick). You could try to switch timer
>> from one-shot to periodic mode (kern.eventtimer.periodic). You could
>> also try to switch to another timer (kern.eventtimer.timer).
> 
> kern.eventtimer.periodic needs to be disabled to run 9.x on xen
> (as of a few months ago)

Yes, but it needs to be enabled (it is disabled by default). I remember
about it and going to experiment with it nearest time.

-- 
Alexander Motin