I haven't used any of them recently but I had the perception that chicken had more libraries available. Gambit's generated C code used to be easier to port on o

I haven't used any of them recently but I had the perception that chicken had more libraries available. Gambit's generated C code used to be easier to port on other platforms. But to address the question directly http://www.iro.umontreal.ca/~gambit/bench.html http://www.iro.umontreal.ca/~gambit/bench.html