Chijianchun <chijianc...@huawei.com> writes: > Now in KVM, when RAM snapshot, vcpus needs stopped, it is Unfriendly > restrictions to users. > > Are there plans to achieve ram live Snapshot feature?
I think you mean a live version of the savevm command. You can approximate live migrating to a file, creating an external disk snapshot, then resuming the guest. Regards, Anthony Liguori > > in my mind, Snapshots can not occupy additional too much memory, So when the > memory needs to be changed, the old memory page is needed to flush to the > file first. But flushing to file is too slower than memory, and when > flushing, the vcpu or VM is need to be paused until finished flushing, so > pause...resume...pause...resume............., more and more slower. > > Is this idea feasible? Are there any other thoughts?