Sorry to just link drop on ya’ll, but if you haven’t seen it, Charles Nutter of the JRuby team has published a writeup titled Promise and Perils for Alternative Ruby Impls. It provides an excellent analysis of 1.8, 1.9, JRuby, Rubinius, and the other Ruby interpreter projects out there, if only slightly biased for JRuby (understandably). If you have an interest in the future of Ruby, it is a recommended read.




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