[Openstack-operators] Overselling/Oversubscribing RAM
swinchen at gmail.com
Fri Sep 21 14:39:22 UTC 2012
What are some "best practices" when it comes to overselling RAM in a
KVM based openstack setup? For example:
I have 4 nodes with 16 cores & 128 GB RAM each. If on one of those
nodes I oversell ram 2:1 (256 GB RAM) and the VMs actually use that
much does it just start swapping out pages to disk?
How do all of you handle overselling RAM?
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