device: 0.938
performance: 0.738
network: 0.595
graphic: 0.565
semantic: 0.477
boot: 0.454
socket: 0.430
other: 0.416
vnc: 0.365
debug: 0.357
permissions: 0.318
PID: 0.167
files: 0.075
KVM: 0.009

XenBus machines have almost no hotplug support