If you want to investigate these kind of things, I also ran ptrace in nim itself, in a few random compilations of nim and see it reading the stdlib files from disk, very very frequently, I have enough ram to fit the stdlib files on RAM, maybe something like tmpfs can be used automatically when free RAM >= size(stdlib) (???).
I do not know whats the tmpfs equivalent for Windows, if any. I do not know how all of this can be implemented to be really useful beyond experiments. Just thinking out loud... ;P
