Not really. I'm pretty sure Racket is bytecode compiled, but it's not nativecode compiled. It has a realtime interpreter, of course. I'm more of a Chicken fan,

Not really. I'm pretty sure Racket is bytecode compiled, but it's not nativecode compiled. It has a realtime interpreter, of course. I'm more of a Chicken fan, myself, and Chicken has a REPL/interpreter and an optimizing compiler. It's compiler isn't especially fast, even at lower settings. Racket really is the C++ to Scheme's C in that it's similar to its parent (although unlike C++, it's actually not compatible), and is more complex (I would say too complex, but unlike C++, it's fairly well designed, so it's a matter of opinion: if you like it, good on you). Guile is also bytecode compiled. I don't know how fast compilation is.