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JRuby really is a different language than Ruby. Not only is it built on a different ecosystem of libraries (anything on the JVM vs anything for Ruby) but there

JRuby really is a different language than Ruby. Not only is it built on a different ecosystem of libraries (anything on the JVM vs anything for Ruby) but there are language extensions that make it operate differently (Java MBeans being one of them.)

igouy 14y ago
The JRuby measurements shown on the benchmarks game website are for plain Ruby programs without any language extensions, but using -Xcompile.invokedynamic=true
masklinn 14y ago
> JRuby really is a different language than Ruby. No, JRuby is a JVM-based implementation of Ruby. > Not only is it built on a different ecosystem of libraries (anything on the JVM vs anything for Ruby) Irrelevant, you can make the same claim about any impementation of a language: GHC has extensions to Haskell, why isn't JHC benched as well? IronPython can use .Net libraries but not Python C-API libraries, why isn't it there? > there are language extensions Which are not used in the shootout and — again – are irrelevant anyway.