[libvirt-users] Fwd: How to get guest's cpu and mem usage with Java APIs

[Enrico De Maio]

I would like to know how much memory and cpu virtual machine are using so
yes guest's perspective. I'm building a web app that has to alert the user
when the vm is going to be stressed and I would like to do this in terms of
mem and cpu usage.

Thanks in advance for your support,

Enrico De Maio


On Mon, Mar 10, 2014 at 7:16 PM, Eric Blake <eblake at redhat.com> wrote:

> On 03/10/2014 04:54 AM, Enrico De Maio wrote:
> > Hi everybody,
> >
> > I'm using libvirt java api bindings for my thesis. I would like to know
> if
> > there is a way to obtain live information about cpu and mem usage of a
> > domain.
>
> Are you asking the question from the host's perspective (how much
> resources has the host given to the guest) or from the guest's
> perspective (how much is the guest actively using, even if the host has
> given it more)?  Libvirt already provides several API calls. such as the
> ones used by 'virsh cpu-stats' and 'virsh dommemstat'; you may have to
> do some code reading to figure out what C calls the virsh code made in
> order to find the same API under the Java bindings.
>
> --
> Eric Blake   eblake redhat com    +1-919-301-3266
> Libvirt virtualization library http://libvirt.org
>
>
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