Thank you all I didn't realize that JIT in macruby is compiling on the fly the code piece a piece (I thought that a source file was the compilation unit) and so JIT time to compile the block was inside my time metrics
I re-run the test looping many times and the results are speaking for themselfs: uliano$ macruby fib.rb sum of even Fibonacci less than 4000000 = 4613732 time = 0.637182 uliano$ /usr/bin/ruby fib.rb sum of even Fibonacci less than 4000000 = 4613732 time = 4.710929 uliano$ ruby fib.rb # this is Ruby 1.9.1 from macports sum of even Fibonacci less than 4000000 = 4613732 time = 0.660384 uliano$ macrubyc -o fib fib.rb uliano$ ./fib sum of even Fibonacci less than 4000000 = 4613732 time = 0.61873 _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
