This isn't something to be done at the guest VM level but at the hypervisor level. In an optimal scenario, it can be cheaper to clone a VM with CoW semantics th

This isn't something to be done at the guest VM level but at the hypervisor level. In an optimal scenario, it can be cheaper to clone a VM with CoW semantics than it would be to deduplicate memory dynamically. But I guess this would defeat kASLR between all of the clones.