Re: [Xen-devel] Xen 3.0.4 - Ballooning

["Andrew D. Ball" <aball@xxxxxxxxxxxxxxxxxx>]

Not such a dumb question.  As far as I know, memory ballooning is only
done from the control partition (dom0) nowadays, explicitly.

It would be nice for something inside of a domU's kernel or userspace to
watch 
some metric and then ask nicely for more memory if needed.  Paravirtual
drivers
can do this for sure, but I haven't poked around enough to know which
available
ones do and how to trigger it.

Peace.
Andrew

On Mon, 2007-01-08 at 11:21 +0100, SÃbastien RICCIO wrote:
> Hi,
> 
> Maybe it's a dumb question, but I'm actually trying to understand how 
> the memory allocation works within Xen.
> 
> I try to give 128MB to a domU and see if it increases for example when I 
> "nano" a 500mb file, but the process
> just get killed when it reachs the 128MB memory limit.
> 
> How do I configure the guests so they can ask for more memory until a 
> limit is reached ?
> 
> Thanks a lot for your help.
> 
> Best regards



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