RE: [Xen-devel] [PATCH] linux/balloon: don't allow ballooningdowna domain below a reasonable limit

["Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx>]

> It doesn't measure memory or total virtual commitment.

Hmm... in my experiments, it seems to do exactly that.
I wrote a simple "eatmem" program that uses a random
amount of memory (writing to the first byte in each page)
for a random amount of time (printing out the random values),
and watched Committed_AS in /proc/meminfo and it seems
to track well.

> -----Original Message-----
> From: Alan Cox [mailto:alan@xxxxxxxxxxxxxxxxxxx]
> Sent: Thursday, May 01, 2008 10:37 AM
> To: Keir Fraser
> Cc: dan.magenheimer@xxxxxxxxxx; Jan Beulich; Ky Srinivasan;
> xen-devel@xxxxxxxxxxxxxxxxxxx; KurtGarloff
> Subject: Re: [Xen-devel] [PATCH] linux/balloon: don't allow
> ballooningdowna domain below a reasonable limit
> 
> 
> > Can't vm_committed_space grow *bigger* than available 
> memory when using
> > swap? It may indicate the 'static' demand for memory
> 
> vm_committed_space measures address space commitment for anonymous
> objects. It doesn't measure memory or total virtual commitment.
> 
> Alan
>


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel