Dear all,

lately I've been playing around with qemu's/kvm's suspend (to disk) and
resume. My initial expectation was that both operations are I/O bound. So
it surprised me to see that suspend to disk seems to be CPU-bound.
Suspending a VM with 1.5 GB memory takes 55 seconds. This works out to less
than 30 MB/s. Again, I was expecting to be I/O bound and reach 100 MB/s
(and more). I am talking to qemu/kvm via libvirt. Not sure if this matters.

I am looking for a hint what the issue could be here. Hopefully with
pointers to the (offending) code.

Thanks,
Thomas.

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