FYI, this is not unique to Go. A number of languages implement lightweight threads in the same way (roughly), like erlang or Haskell. It’s all epoll or other efficient polling primitives under the hood.
I'm of the impression that there's an important difference between Go and Haskell's models--namely that Go is M:N threaded and Haskell is not; however, I don't entirely understand the significance of the difference, so hopefully someone else can comment and enlighten me.
No, I'm not sure. :) I may have incorrectly assumed that the definition of M:N threads includes movable application threads (e.g., Go's scheduler can move goroutines from one kernel thread to another).
