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SubjectRe: Overcommitable memory??
On Mon, 20 Mar 2000, Horst von Brand wrote:

> They are a way of killing processes without declaring OOM (OOM effect
> without OOM :). If they are set up to not overcommit, ever. Rarely done, as
> it is a huge waste. Start over.

if the app is bad then the app is bad. At least with per-user limits you
can set things up so that bad/untrustworthy apps only affect themselves.

ie, it's no longer a kernel problem.

> Very much agree. It would be nice if we were given the alternative,
> which we aren't right now. First question is, who is going to use
> this?

a lot of people. me for one. I already make heavy use of process limits.

> How extensively? For what kinds of uses? Next question is, how
> much does this cost, when it is used and when it isn't? How much
> developer/maintainer/ tester manpower it consumes has to be counted
> in here. Both in the kernel configuration case "Overcommit memory
> (Y|n)",

are we talking about the same thing? I'm talking per-user limits,
something which we might eventually see in linux.

You seem to be talking about having a non-overcommitting vm. (something
which i think we'll never see in linux - but lets not argue about that).

-paul jakma.

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