[libvirt] qemu-kvm spending time in do_info_migrate() during virDomainSave(); 50ms polling too fast?

Charles Duffy charles at dyfis.net
Mon May 3 19:46:35 UTC 2010


On Mon, May 3, 2010 at 1:48 PM, Matthias Bolte <
matthias.bolte at googlemail.com> wrote:

> 2010/5/3 Charles Duffy <charles at dyfis.net>:
> > The question then -- is the 50ms poll in
> qemuDomainWaitForMigrationComplete
> > (called from qemudDomainSave) perhaps too frequent?
>
> What's the libvirt version?
>
> Maybe the "Poll for migration end every 50ms instead of 50us" [1]
> commit (part of 0.8.1) fixes your problem, if you're currently using
> libvirt < 0.8.1.
>

Ahh; this predates 0.8, so that sounds to be precisely on-point.
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