mlock guest memory with libvirt

Registered by Satoru Moriya

Guest memory may be swapped out if there is memory pressure on the host.
On the other hand, each guest has a different priority and sometimes
some guests need to avoid memory reclaim to keep their system requirement
even if there is heavy memory pressure in the host.

Current qemu has the mlock feature (-realtime mlock=on|off) to pin down
guest memory on the RAM and libvirt also supports it.

This blueprint will allow Nova to support the mlock feature in order to
avoid guest memory reclaim.

Blueprint information

Status:
Not started
Approver:
None
Priority:
Undefined
Drafter:
None
Direction:
Needs approval
Assignee:
None
Definition:
Drafting
Series goal:
None
Implementation:
Unknown
Milestone target:
None

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Whiteboard

If you are still working on this, please re-submit via nova-specs. If not, please mark as obsolete, and add a quick comment to describe why. --johnthetubaguy (20th April 2014)

(?)

Work Items

This blueprint contains Public information 
Everyone can see this information.