Messages in this thread |  | | Date | Fri, 21 Sep 2001 03:22:30 +0200 | From | Andrea Arcangeli <> | Subject | Re: [PATCH] Preemption Latency Measurement Tool |
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On Fri, Sep 21, 2001 at 02:03:37AM +0100, Alan Cox wrote: > they dont get stuck doing a huge amount of pageout work for someone else. > Thats one thing I seem to be seeing with the 10pre11 VM.
actually one feature of the 10pre11 VM is that it will avoid a task to give to other people the pages that it is freeing for itself. The previous VM didn't has such a feature. So (in theory :) it should be the other way around. see the implementation of page_alloc.c::balance_classzone().
Actually Linus found just a few minutes ago a possible source for high latencies in the pre12 VM, my silly mistake, he will certainly fix it in pre13 somehow just in case that was the problem.
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