Re: [PATCH V3] KSM: allow dedup all tasks memory

[Pavel Tatashin]

> Wait, what? Can you name specific ones? Nowadays, enabling KSM for
> untrusted VMs seems like a terrible idea to me, security-wise.

Of course it is not used to share data among different
customers/tenants, as far as I know it is used by Oracle Cloud to
merge the same pages in clear containers.

https://medium.com/cri-o/intel-clear-containers-and-cri-o-70824fb51811
One performance enhancing feature is the use of KSM, a recent KVM
optimized for memory sharing and boot speed. Another is the use of an
optimized Clear Containers mini-OS.

Pasha