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On 2017-12-20 10:06 AM, Jaze Lee wrote:
> Yes, i notice it. But when there will be vcpu.*.time? Which libvirt version?
> We use libvirt 3.2.0 and it does not have vcpu.*.time, so it will go
> to fall back.

i have:

virsh # version
Compiled against library: libvirt 3.2.0
Using library: libvirt 3.2.0
Using API: QEMU 3.2.0
Running hypervisor: QEMU 2.9.0

and it works fine. possibly related to your qemu version?

> 
> The fall back is so coarse, do you think we should have it?

are you overcommiting your cpu? that is exactly the case that breaks 
down as the patch i sent you mentions. please look at the bugs and 
related threads on that patch.

-- 
gord