in 2007, JRuby performance is better than Ruby MRI 1.8, after the Java Virtual Machine had been instantiated. In a 2007 benchmark of Ruby implementations, JRuby was faster than Ruby MRI 1.8 in some tests, but YARV outperformed both of them. As of April 2014, in The Computer Language Benchmarks Game, JRuby 1.7.4 typically has the same performance as Ruby MRI 2.1.0, but uses more memory. See also GraalVM List of Java scripting languages ZK (framework) – an Ajax framework supporting JRuby References Further reading External links Free software programmed in Java (programming language) Free software programmed in Ruby JVM programming languages Object-oriented programming languages Ruby (programming language) Scripting languages Software using the Eclipse license