Hi, guys.
I want to change block I/O throttle using 'virsh blkdeviotune' with vm not
running, it reported an error:
# virsh blkdeviotune instance-000000dc /dev/loop0 --total-bytes-sec 20000000
--total-iops-sec 20 --config
error: Unable to change block I/O throttle
error: unsupported configuration: block I/O throttling not supported with this
QEMU binary
I can do this when the vm is running. Is it a bug? How can I fix this problem.
BTW,My libvirt version is 0.9.13:
# virsh version
Compiled against library: libvir 0.9.13
Using library: libvir 0.9.13
Using API: QEMU 0.9.13
Running hypervisor: QEMU 1.1.2
Thanks.
2012-11-28
hzguanqiang
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