Re: sluggish system responsiveness under higher IO load

From: Matthias Dahl
Date: Fri Aug 11 2006 - 07:38:57 EST

On Thursday 10 August 2006 14:28, Jens Axboe wrote:

> - Did 2.6.16 work well for you?

AFAICT 2.6.17 behaved more sluggish but this is my subjective observation. The
problem itself exists for quite some time now. (prior to 2.6.16) I cannot
even tell if it ever worked fine. :-(

> - Does disabling preemtion (CONFIG_PREEMPT_NONE=y) help?

Sorry for my late response btw. I will do the necessary tests (including the
blktrace you asked for) this weekend and report back as soon as possible.
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