device: 0.808
network: 0.701
performance: 0.597
graphic: 0.541
semantic: 0.234
boot: 0.219
vnc: 0.216
PID: 0.202
files: 0.188
debug: 0.172
KVM: 0.112
permissions: 0.052
other: 0.017
socket: 0.011

ga: auto-discover virtio port using sysfs