On 05/16/2012 08:35 AM, Daniel P. Berrange 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. > > https://lists.gnu.org/archive/html/qemu-devel/2012-05/msg02215.html > https://lists.gnu.org/archive/html/qemu-devel/2012-05/msg02255.html
I like the goal of this series, but we shouldn't apply it until this has been accepted in upstream qemu and we have a commit id to point to. That said, I'll still review the code. -- Eric Blake ebl...@redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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