device: 0.862
performance: 0.823
network: 0.743
other: 0.574
graphic: 0.370
vnc: 0.335
semantic: 0.275
boot: 0.203
permissions: 0.195
debug: 0.191
PID: 0.179
files: 0.151
socket: 0.132
KVM: 0.070

can not handler real-time signal (signal number > 30) by sigqueue on linux user mode