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Ruby VMs: A Comparison

Posted by Jason Seifer  on  Feb 26, 2009 3

A look at the different Ruby virtual machines (JRuby, MagLev, IronRuby, Rubinius, MacRuby) and how to choose what fits best within the enterprise.

JRuby: The Pain of Bringing an Off-Platform Dynamic Language to the JVM

Posted by Charles Nutter  on  Jan 07, 2009 3

In this presentation from the JVM Languages Summit 2008, Charles Nutter discusses bringing JRuby to the JVM, why Ruby is hard to implement, JIT compilation, precompilation, core Ruby implementation, Java library method access, method call semantics, scopes, open classes, heap-based frames, library challenges, strings, regexps, I/O, green threads, POSIX features, C lib support and future plans.

Fast Bytecodes for Funny Languages

Posted by Cliff Click  on  Dec 02, 2008

In this presentation from the JVM Languages Summit 2008, Cliff Click discusses how to optimize generated bytecode for running on the JVM. Click analyzes and reports on Java, Scala, Clojure, JRuby, JPC and JavaScript/Rhino and points out several places where each of them could increase their performance such as elimination of FixNums, escape analysis and best practices for testing bytecode.

Mingle: Building a Rails-Based Product

Posted by Neal Ford  on  Jun 06, 2008

Neal Ford talks about Mingle, Thoughtworks Studios' project management software. Mingle is written or JRuby - Neal explains the experience with building a product on JRuby, solutions to problems, and future plans for using JRuby in Mingle.

JRuby: Not Just Another JVM Language

Posted by Charles Nutter  on  Apr 18, 2008 4

In this presentation from QCon San Francisco 2007, Charles Nutter discusses the Ruby and JRuby featureset, the JRuby compiler, calling Java from JRuby and vice versa, programming Swing with JRuby, JRuby web applications, JRuby on Rails, persistence, build automation, Test-Driven Development and Behaviour-Driven Development.

JRuby - Bringing Ruby to the JVM

Posted by Charles Nutter & Thomas Enebo  on  Sep 06, 2006 5

In this presentation from InfoQ Day at Java One, Thomas Enebo and Charles Nutter show off the current state of the JRuby project, which has come a long way under their stewardship. The presentation shows compelling demonstrations of how the Ruby language and key Ruby applications can function well on the Java Virtual Machine.

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