does not show the memory consumption

[Dvornikov Mihail]

KVM host system: Ubuntu 18.04 and 20.04, guest machines: Windows and Ubuntu.
Management through Ubuntu 20.04, vmm does not show RAM consumption for Windows guest systems (Win7, Win2008R2), for Ubuntu values are shown. The error is not observed in Ubuntu 18.04/vmm.

[Christian Ehrhardt  (paelzer)]

Do you mean the stats that are enabled via
 "Edit" -> "Preferences" -> "Polling" -> "Poll Memory stats"
And then shown via
 "View" -> "Graph" -> "Memory usage"
?

That would be what is probed from the host and default off as that is considered "expensive" in terms of CPU burnt for it.

That is based ont he same as dommemstats, could you check in a commandline if this works:
$ virsh dommemstat <guestname>

[Dvornikov Mihail (dvornikov)]

host:
# virsh dommemstat win7urm
actual 3145728
last_update 1605636164
rss 3209524

# virsh dommemstat win7cons
actual 3145728
last_update 1605636170
rss 3261932

[Christian Ehrhardt  (paelzer)]

Hi Mihail,
your image slightly confuses me - there are multiple windows guests (bottom three) that have "some data" and one (forth from the bottom) that does not. What differentiates that one from the others?
It does not have any data - is it maybe just off?

What view exactly is that actually? Right off the bat I don't know of a panel in virt-manager that can be made looking that way.

[Dvornikov Mihail (dvornikov)]

Hi, Christian!
Ubuntu 20.04.1 / VMM 2.2.1.
One of the guest systems is down.
Image edited:
* cropped to the left to not display guest names;
* added guest systems.

Memory size not showing when VMM migrates to ubuntu 20.04.
The same guests displayed fine on Ubuntu 18.04.

[Launchpad Janitor (janitor)]

[Expired for virt-manager (Ubuntu) because there has been no activity for 60 days.]