device: 0.554
other: 0.338
network: 0.335
KVM: 0.316
boot: 0.307
vnc: 0.283
semantic: 0.272
graphic: 0.262
mistranslation: 0.121
socket: 0.101
instruction: 0.057
assembly: 0.008

block copy job sometimes hangs on the last block for minutes