Re: Results: pre6 vs pre6+zlatko's_patch vs pre5 vs arcavm13

Vladimir Dergachev (vdergach@sas.upenn.edu)
Sun, 10 Jan 1999 14:23:26 -0500 (EST)

> This shows up mainly on small memory machines, because on large memory
> machines we still have a lot of choice about what to free up, so it's not
> all that much of a problem.
>
> But basically it seems that the reason pre-5 was so good was simply due to
> the bug that allowed it to deadlock. Sad, because there's no way I can
> re-introduce that nice behaviour without re-introducing the bug ;(

Stupid question: is it possible to teach it to recognize the deadlock ?
If I understand things right "nice behaviour" happens when we don't have
the deadlock and the deadlock occurs not very often. So we might check
once a second whether we have been low on memory for a while with a lot of
swap available and if so revert to "bug-proof" behaviour.

Vladimir Dergachev

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