On 10/12/2016 09:04 AM, Stefan Hajnoczi wrote: > John and I recently discussed asynchronous savevm and I wanted to post > the ideas so they aren't forgotten. (We're not actively working on this > feature.) > > Asynchronous savevm has the same effect as the 'savevm' monitor command: > it saves RAM, device state, and a snapshot of all disks at the point in > time the command was issued. >
Interesting idea. I suspect this would have benefits over using fork()'s copy-on-write semantics, even if we could come up with a way to safely fork where the child permits no state modification, but merely starts scraping off the memory state of the guest at the time of the fork. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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