device: 0.830
instruction: 0.592
KVM: 0.468
network: 0.416
other: 0.342
graphic: 0.295
semantic: 0.288
boot: 0.284
socket: 0.222
mistranslation: 0.128
vnc: 0.126
assembly: 0.035

Using qemu+kvm is slower than using qemu in rv6(xv6 rust porting)