[ds300]

> With goroutines the cooperation is handled by the implementation/compiler -- i.e. Yield() calls are automatically inserted by the compiler -- rather than by the programmer manually by hand.

The compiler only inserts yeilds at some call sites. It's not a total solution like real preemptive scheduling, so you still need to be careful.

[Rapzid]

That's old information; every function call causes the check now.

[gtani]

Correct from 1.2, except inlined calls, see here http://stackoverflow.com/questions/21102078/golang-methods-t...

and http://dave.cheney.net/2014/06/07/five-things-that-make-go-f...

[slimsag]

Newer Go versions (1.2 I think?) use preemptive scheduling so you don't have to do anything special: that's my point entirely.

Goroutines by specification have the potential to run all at the same time, in the exact way that OS-level threads do.

In older _implementatoins_ of Go, goroutines were not preemptively scheduled, and exactly as you say you had to be careful.