[pve-devel] KVM Live Backup performance

Dietmar Maurer dietmar at proxmox.com
Fri Nov 22 18:19:48 CET 2013

> In a thread on the proxmox forum discussing performance of cheph
> (http://forum.proxmox.com/threads/16715-ceph-perfomance-and-latency)
> Dietmar replies: "A VM is only a single IO thread"
> Could this influence the performance when doing the new KVM live backup since
> this backup occurs inside the KVM while the old LVM backup is taken place
> outside the KVM?

That backup code uses aio, so that should not be the problem.

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