[libvirt-users] Host and VM performance using libvirt

Peter Phaal peter.phaal at gmail.com
Mon Jan 9 15:36:22 UTC 2012

Hi Ananth,

You might want to take a look at the Host sFlow project if you have a
large KVM server pool to monitor:


The Host sFlow agent is installed on the KVM hypervisor and uses
libvirt to push the VM performance counters to a central collector,
eliminating the need to poll for metrics. In addition to VM
statistics, Host sFlow also exports the key performance metrics for
the hypervisor - CPU, memory, network and disk IO.

The open source Ganglia tool provides a scalable way to collect and
graph the metrics:



On Sun, Jan 8, 2012 at 11:11 PM, Ananth <cbananth at gmail.com> wrote:
> Hi,
> Is there any libvirt API for measuring the Host and VM performance
> parameters. Or is there any virsh command implementing the same for KVM?
> eg: CPU utilization, memory utilization, load percentage, CPU Mhz etc.,
> --
> Regards
> Ananth
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