"Dr. Arne Babenhauserheide" writes: > With the original setting, most benchmarks take around 4-6 MB of > memory. > - x1: 4-6 MB > - x2: 6-9 MB > - x3: 4-10 MB > - x4: ~11 MB > - x32: 4-74 MB Additional support to the comment by Andy about heap size: racket -e "(sleep 30)" This takes 117.5 MB. guile -c "(sleep 30)" This takes 2.9 MB. The interactive Guile REPL takes 17 MB. The interactive Chez REPL takes 18 MB. Chez not taking much more memory despite being faster says something about the speed of Chez … Best wishes, Arne -- Unpolitisch sein heißt politisch sein, ohne es zu merken. draketo.de