[monadic2]

> JRuby optimizes method_missing in production right now so there's no need to wait for a tracing JIT.

Surely this would reflect in benchmarks? Perhaps there is an even slower aspect of the language manifesting in JRuby....

> I'm not sure what you're trying to say with the last part because Ruby works quite differently to Lua or Self here and Self has been "fast" for 30+ years anyway.

Is this supposed to reflect in Ruby’s favor? Self was built to be performative in spite of its novel features—the slow aspects of the language were never encouraged to take a central role. A better equivalent might be applescript or bash or a language that emphasizes some particular quality of expressiveness.

[jashmatthews]

It does? JRuby 9.2 can be 15% (web), 25% (optcarrot), maybe 3x faster (microbenchmarking iterators) than CRuby depending on what you're doing.

Did you mean messages? They're certainly a central part of Self.