performance: 0.496
device: 0.455
vnc: 0.365
graphic: 0.359
boot: 0.289
files: 0.205
network: 0.204
semantic: 0.052
other: 0.043
PID: 0.035
debug: 0.033
socket: 0.028
permissions: 0.016
KVM: 0.008

revise docs/interop/virtio-balloon-stats.rst