Goal

KSM, so far an opt-in, will be enabled by default for new clusters after this epic is done.

User Stories

• As a cluster administrator, I want to see an efficient memory utilization, so that I can run more VMs on my hardware.
• As a cluster administrator, I want to turn KSM off if I don't care about memory usage and do not want to waste CPU resources on KSM.

Non-Requirements

• No need to make KSM any smarter of more efficient.

Notes

• This is particularly important for clusters running Windows VMs, as Windows zeros unused memory pages.