performance: 0.432
other: 0.411
semantic: 0.396
graphic: 0.234
device: 0.188
debug: 0.168
KVM: 0.144
vnc: 0.118
permissions: 0.093
PID: 0.091
network: 0.074
boot: 0.064
files: 0.054
socket: 0.052

latest code missing "singlestep"