VM shows wrong GHz core speed

[urobe]

Hey there,

I'm setting up some virtual machines, and recognized, that inside the VM the wrong core speed is being displayed:

If I stress the cpu, the cpu usage in the truenas dashborard goes to 100%, but inside the VM it shows that the cpu is running with 2,1 Ghz, while it should run with 3 ghz, possibly even with 3,7.

is this normal, or do I need to adjust the bios and or truenas?

 

[sretalla]

It seems this is an issue of KVM in general:

Host CPU does not scale frequency when KVM guest needs it

Observation: I have an HP server with an AMD dual core CPU (Turion II Neo N40L) which can scale frequencies from 800 to 1500 MHz. The frequency scaling works under FreeBSD 9 and under Ubuntu 12.04 ...

unix.stackexchange.com

Maybe you can try out the suggestions and if they help, raise a feature request to be able to set it in the GUI.

 

[urobe]

Thank you very much for the link. I'll try the suggestions next week, and will report back.