Higher idle CPU load with Debian 9 VMs

E

Eris

Renowned Member
Proxmox Subscriber
Dec 16, 2015
12
0
66
43
itronic.at
Hi,

we recognized a higher cpu load after upgrading VMs from Debian 8 to Debian 9, maybe its not proxmox related but I only see this only in the proxmox webinterface and not inside of the VM.

Attached are some screenshots from different VMs, front01 has debian 8, frond02 is a clone with debian 9 doing nothing.

backup01 is on another node with "no" process running, you can see that io stops after i killed almost everything.

Did someone notice this behavior too?

I know its "only" 2% more but that's 4 times more then with Debian 8...
 

Attachments

  • backup01_htop.jpg
    backup01_htop.jpg
    87.7 KB · Views: 7
  • backup01_pm_usage.jpg
    backup01_pm_usage.jpg
    174.4 KB · Views: 7
  • fron01_htop.jpg
    fron01_htop.jpg
    96.4 KB · Views: 5
  • fron01_pm_usage.jpg
    fron01_pm_usage.jpg
    59.7 KB · Views: 7
  • fron02_htop.jpg
    fron02_htop.jpg
    111 KB · Views: 5
  • fron02_pm_usage.jpg
    fron02_pm_usage.jpg
    71.1 KB · Views: 7
Last edited:
Both VMs, front01 and front02 do not have the same configuration. As front01 has 6 CPUs available and front02 only two.
 
It doesn't matter how many cpus the vm has, anyway I already found the problem, its the qemu tablet usb device....

I patched my proxmox and removed usb support completely, I would like to have switch to turn it off... because I don't have any usb device ... maybe for a windows VM but even there I would disable it.

Also I will soon switch to the new shiny term.js with serial.socket.
 
You must log in or register to reply here.
Top Bottom