[libvirt] [PATCH 0/2] Avoid touching monitor when fetching guest XML or info
Daniel P. Berrange
berrange at redhat.com
Thu Jul 12 17:01:42 UTC 2012
On Thu, Jul 12, 2012 at 11:45:55PM +0800, Guannan Ren wrote:
>
> The virDomainGetXMLDesc and virDomainGetInfo APIs for QEMU suffer
> from needing to run 'query-balloon' to update the balloon level.
> This has caused us performance problems and even worse caused us
> to lock up on a dead QEMU.
>
> The following two patches to QEMU add a BALLOON_EVENT and a query-events
> command to QMP. With those two parts, we can avoiding running the
> query-balloon command at all.
Thanks for re-posting these patches - but in the future, if you are going
to take over someone else's patches it would be a good idea to contact
them beforehand to let them know - this would save possible duplicated
work.
Obviously these patches get my ACK, but someone else needs to review them
really :-)
Daniel
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