If you're looking for a fast JVM-based Lisp the obvious choice would be Kawa Scheme: http://per.bothner.com/blog/2010/Kawa-in-shootout/ http://per.bothner.com/b

If you're looking for a fast JVM-based Lisp the obvious choice would be Kawa Scheme: http://per.bothner.com/blog/2010/Kawa-in-shootout/ http://per.bothner.com/blog/2010/Kawa-in-shootout/ But as fogus said, speed is only one piece of the puzzle. http://news.ycombinator.com/item?id=4223562 http://news.ycombinator.com/item?id=4223562