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Course it is. JRuby has been faster then MRI for a long time. That does not mean I use it for production.

> That does not mean I use it for production.

Any particular reason why? (I'm just curious, I do absolutely nothing with ruby)

True in the 1.8 1.9 era. Against 2.2 it is not an automatic "Is faster"

Ruby performance has not improved substantially since 2.0, and we should almost always be faster for straight-line workloads. If we're not...tell me.