Messages in this thread | | | Date | Thu, 10 Aug 2006 14:28:53 +0200 | From | Jens Axboe <> | Subject | Re: sluggish system responsiveness under higher IO load |
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On Tue, Aug 08 2006, Jens Axboe wrote: > On Tue, Aug 08 2006, Matthias Dahl wrote: > > > Can you see if this makes any difference whatsoever? > > > > Sorry but no change for the better with this patch. > > > > Are there any more informations I can provide to help? > > Ok, it was worth a shot. I got another report that the patch fixes this > behaviour, so maybe we are dealing with two seperate issues. It would be > nice if you could gather vmstat 1 info during a problematic period. > blktrace info could also be very useful: > > http://brick.kernel.dk/snaps/blktrace-git-20060807122505.tar.gz
Some more things to try/questions:
- Did 2.6.16 work well for you?
- Does disabling preemtion (CONFIG_PREEMPT_NONE=y) help?
-- Jens Axboe
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