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The real advantage comes from the fact that JRuby isn't enslaved to a GIL like MRI, so you get JVM threads out of the box. Even with the JIT, JRuby (at least 1.
by fny 11y ago
The real advantage comes from the fact that JRuby isn't enslaved to a GIL like MRI, so you get JVM threads out of the box. Even with the JIT, JRuby (at least 1.7) isn't appreciably faster than MRI when running a single-threaded app: http://www.isrubyfastyet.com/ http://www.isrubyfastyet.com/