device: 0.886
performance: 0.745
network: 0.698
files: 0.641
graphic: 0.534
register: 0.371
permissions: 0.353
kernel: 0.346
architecture: 0.290
debug: 0.270
mistranslation: 0.268
hypervisor: 0.265
boot: 0.256
VMM: 0.208
arm: 0.201
risc-v: 0.187
semantic: 0.174
i386: 0.170
ppc: 0.152
peripherals: 0.126
x86: 0.118
virtual: 0.110
PID: 0.085
vnc: 0.075
socket: 0.069
TCG: 0.067
user-level: 0.066
assembly: 0.006
KVM: 0.005

qemu may freeze during drive-mirroring on fragmented FS