Go does slightly better in the 64-bit test (which I think is more apt to link to rather than the 32-bit which you keep using) http://benchmarksgame.alioth.debi

Go does slightly better in the 64-bit test (which I think is more apt to link to rather than the 32-bit which you keep using) http://benchmarksgame.alioth.debian.org/u64q/benchmark.php?test=all&lang=go&lang2=java http://benchmarksgame.alioth.debian.org/u64q/benchmark.php?t... That said, Java still beats Go quite readily in this benchmark spread, particularly in regex and binary-trees where Go does extremely poor. It should be noted that lots of languages implement their regex libraries in C for speed, while Go's implementation is written in Go. Still, I think it should do better than this. That Java beats Go overall is not particularly surprising, Java is very mature and it's jit-compiler has very advanced optimizations, Perhaps by Go 2.0 we'll see where Go 'lands' in terms of performance, there's obviously alot more to be had.