It mentions Rubinius briefly (it doesn't have a GIL).
Slightly of topic, but can anyone with better knowledge then myself of ruby implementations and internals explain why it hasn't caught much of a following (what it seems anyway, I may be wrong here).
To me it seems like a pretty good idea to implement Ruby mostly in Ruby, since it makes it easier to get contributions (especially to less performance-sensitive parts of the language, e.g. parts of the standard lib).
Slightly of topic, but can anyone with better knowledge then myself of ruby implementations and internals explain why it hasn't caught much of a following (what it seems anyway, I may be wrong here).
To me it seems like a pretty good idea to implement Ruby mostly in Ruby, since it makes it easier to get contributions (especially to less performance-sensitive parts of the language, e.g. parts of the standard lib).