On Mon, Apr 04, 2016 at 05:57:43PM +0200, tfcyundlim dehasawzdg wrote:

Hello everyone,

I've been looking through the libvirt API to get information about memory page dirtying of VMs. I need these to aid decisions on which VM to migrate. The only thing I found is

virDomainGetJobStats()

with

VIR_DOMAIN_JOB_MEMORY_DIRTY_RATE

but that only works when a migration is already running. Is there a way to get information on VMs which are not already migrating?

No, IIUC, page dirtying is only enbled by QEMU while migrating because it has non-neglible performance impact on the guest. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|