Now we've got the ability to take snapshots with 'memory' - they seem to
take a very long time...
Setup is FreeBSD 9.2-RC3 amd64 XENHVM system running under Xen Server 6.2,
on a reasonably fast machine (all SSD storage).
In XenCenter a 'disk snapshot' completes in 3 seconds, however selecting
'Snapshot the virtual machine's disks and memory' takes over a minute?
We're new to Xen - so I've no idea if that's a good, or bad time? - The
guest host goes comatose while it's happening as well.
Also once the snapshot is complete the console starts filling with lots of:
calcru: runtime went backwards from 752 usec to 717 usec for pid X
(Lots of values for 'from' and 'to' and lots, i.e. all PID's).
Restarting the VM fixes this.
Any pointers? - aside from switching the kernel to XENHVM, installing
'xe-guest-utilities' and 'removing' the CDROM drive from the image - it's
all stock settings.
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