Re: Misleading OOM messages

From: Christoph Lameter
Date: Fri May 15 2009 - 14:29:44 EST


On Fri, 15 May 2009, Pavel Machek wrote:

> Ok, so kernel should be fixed to make limits 30% of non-mlocked
> memory.

There is already ulimit.

> > folks. They go sucking up and locking as much memory as they can get
> > their hands on. Adding memory never helps them because they'll use up
> > whatever is there.
>
> Well, but it is uncommon everywhere else. If you have desktop system,
> job size is pretty much constant. If you have too little memory, you
> OOM.

Nope. If you have too little memory for your app then the kernel pages
portions of the app out to disk. Thats is why you have a VM (VIRTUAL
machine). The app is not running with physical memory.


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