It's commonly missunderstood but Xen can also do much more then KVM because it can run systems purely para-virtualised. This means there is no actual machine a

It's commonly missunderstood but Xen can also do much more then KVM because it can run systems purely para-virtualised. This means there is no actual machine abstraction despite it using hardware accelerated extensions like VT-x and EPT. The difference in overhead between a fully para-virtualised system and a process that is running in a container is going to be pretty similar other than I/O performance (which is a complicated discussion). If you find this interesting lookup Xen unikernels, a fairly well known one now is Mirage OS. Which lets you easily write Ocaml applications ontop of a Xen unikernel.