device: 0.867
graphic: 0.577
network: 0.551
instruction: 0.436
boot: 0.175
semantic: 0.128
mistranslation: 0.086
assembly: 0.045
socket: 0.029
vnc: 0.027
other: 0.025
KVM: 0.003

qemu-img: support ZSTD compression level customization