@ekaitz_zarraga technically speaking, that's true for any operating system (it is at least for #Jehanne and #Plan9): the program image of a program is cached so that already faulted page won't be load twice (unless there's high memory pressure and images are discarded).

This is a plain advantage of actual binaries over interpreted stuff, I think. And actually it's not easy to achieve outside kernel without an always running virtual machine.