Feature #621

Dynamic CPU load for VMs

Added by Steffen Neumann over 9 years ago. Updated almost 7 years ago.

Status:ClosedStart date:05/10/2011
Priority:NormalDue date:
Assignee:-% Done:

0%

Category:Drivers - VM
Target version:-
Resolution:fixed Pull request:

Description

Hi,

as part of the May 2011 IRC session http://opennebula.org/public/110509.html I'd like to propose
to make the CPU usage calculation more dynamic.

jmelis: sneumann: possibly a dynamic CPU determination, based on e.g. the 1,5 or 15mins load of a VM which is then considered by the scheduler. There might be more advanced ways to determine the actual/current/dynamic CPU value...
jfontan: at least for this or the next version it wont be possible
jfontan: to change that value, the CPU reserved for a VM
jfontan: there are two values that should be changed
jfontan: one is the VM template CPU value, that is the easy part
jfontan: and then the CPU available in the host the VM is running
jfontan: that is the "acpu" value you get with onehost list
jfontan: I think now it is a good time to add this ticket as we are changing the database for the next OpenNebula versions
jfontan: so it is easier to add some features
jfontan: and will be good to take those ideas into account

If the CPU parameter is set to 1.0 ONE will not overcommit available nodes,
and with the availability of a dynamic re-scheduler it is possible to squeeze
all VMs on as few nodes as possible, allowing to power off the unused nodes.

Yours,
Steffen

History

#1 Updated by Ruben S. Montero over 7 years ago

  • Category set to Drivers - Auth

#2 Updated by Ruben S. Montero over 7 years ago

  • Category changed from Drivers - Auth to Drivers - VM

#3 Updated by Ruben S. Montero almost 7 years ago

  • Status changed from New to Closed
  • Resolution set to fixed

This should be addressed by the new drivers

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