* Li Qiang ([email protected]) wrote: > Hello Dave, Juan and all, > > It is useful to get the dirty page rates in guest to evaluate the guest > loads > so that we can make a decide to live migrate it or not. So I think we can > add a on-demand qmp for showing the dirty page rates. > > I found someone has done this work in here: > -->https://github.com/grivon/yabusame-qemu-dpt > and here: > https://github.com/btrplace/qemu-patch > > But seems not go to the upstream. > > I want to know your opinions about adding this qmp.
Something like that could be good; one easy idea we had was a 'migrate null:' uri and then you would use most of the existing migration code to do the measurement; you would only have to add a dummy file backend, and something to stop the migration ever terminating (maybe just set the downtime very low). Dave > Thanks, > Li Qiang -- Dr. David Alan Gilbert / [email protected] / Manchester, UK
