I think that's a misconception? At least the way how I understood this issue. Things like `map[k] = v` would be atomic both before and after nogil, and things

I think that's a misconception? At least the way how I understood this issue. Things like `map[k] = v` would be atomic both before and after nogil, and things like `map[k] += 1` are not atomic even with GIL, the read and store can be split from each other.