libvirt API version I<1.3.3> or later.
B<Note>: I<perf> metrics can't be collected if I<intel_rdt> plugin is enabled.
+=item B<vcpu>: report domain virtual CPUs utilisation.
+
=item B<vcpupin>: report pinning of domain VCPUs to host physical CPUs.
=item B<disk_physical>: report 'disk_physical' statistic for disk device.