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xen-devel
RE: [Xen-devel] Monitoring domU real memory usage
Precisely I want to know how much of the memory is free and active, like we get the mem usage % for apps from top in linux.
Thanks,
Bhavani
--- On Fri, 10/16/09, Dan Magenheimer <dan.magenheimer@xxxxxxxxxx> wrote:
> From: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>
> Subject: RE: [Xen-devel] Monitoring domU real memory usage
> To: ""Pasi Kärkkäinen"" <pasik@xxxxxx>, "bhavani krishnan" <bhavi63@xxxxxxxxx>
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
> Date: Friday, October 16, 2009, 2:53 PM
> > On Thu, Oct 15, 2009 at
> 08:00:07PM -0700, bhavani krishnan wrote:
> > > Hi,
> > >
> > > xentop is only giving me the memory allocated to
> the a domU
> > (Static info). It does not change this info at all. Is
> there
> > anyway to get how much of the allocated memory is the
> domU
> > using? I saw few other similar posts in the archives
> but no
> > solution to it. Please help me out here.
>
> You'll
have to define more precisely what "using" means
> since an OS "uses" (nearly) all the memory given to it for
> one
> thing or another. Are you referring to ballooning?
>
> > I don't know if that information is tracked.
> >
> > Xen doesn't do memory overcommit, so it dedicates
> physical memory for
> > each guest, so it's up to the guests what they do with
> it.
> >
> > -- Pasi
>
> Xen CAN do memory overcommit, just not transparently
> (yet).
>
> In the xen tree, see tools/xenballoond. See this
> link
> from Xen Summit 2008 for more description:
>
> http://wiki.xensource.com/xenwiki/Open_Topics_For_Discussion?action="">> |
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