Re: Andrea VM changes
From: Greg Stark
Date: Mon Sep 15 2003 - 00:17:15 EST
Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> writes:
> On Sul, 2003-08-31 at 00:19, Andrea Arcangeli wrote:
> > I've an algorithm that will work, and that will provide very good
> > guarantees to kill the "best" task to make the machine usable again,
> > with the needed protection against the security DoSes, but it's in
> > no-way similar to the current oom killer.
> And -ac has trivial code so you can avoid OOM killing every happening,
> which is pretty much essential for big servers. Perhaps merging that
> as well would be a good idea.
Indeed there has been an enormous amount of discussion on the postgres mailing
list about how to deal with the OOM killer. The wide consensus there is that
the only sane setting for a production database would be one that guarantees
never to kill overcommit at all.
Frankly, they're a bit in shock that this wasn't an option a long time ago.
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