[PVE-User] KVM processes eating up CPU usage after a while.

iTeV itev at fs0ciety.xyz
Thu Mar 14 13:21:08 CET 2019

Hi folks!

I am currently experiencing a weird "issue" with my KVM processes on
ProxMox after I upgraded the packages last saturday night (That sure as
hell was a loooong night :-))

When running a VM, the KVM process tends to use more CPU usage after a
while. For example: I boot up a VM within proxmox. The CPU usage is
"normal" (`top` showing 5-10% cpu usage for the KVM process) for the 
first 3-4 hours. After that, the CPU usage keeps slowly increasing, while 
the VM is just idling. This gets to the point that the KVM proces is doing
80-90% CPU, and the VM is still idling.

My CPU (understandably) does not like this, resulting into reaching
higher temps then usual.

Is anyone experiencing the same behaviour and/or does someone know how
to properly troubleshoot this?

With kind regards,


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