Message in a Bottle
summary
Shows concrete mechanics and real results: MRI uses lookup caches and a giant VM switch, Rubinius patches bytecode at runtime to install inline caches and compiles hot methods with LLVM, JRuby wires Java’s invokeDynamic with a bootstrap/guard/fallback to let the JVM optimize Ruby dispatch. Claims include about 59 implementations and a deployment note backing TravisCI’s work with 25,000 projects. Expect code snippets, bytecode examples, and measurable speedups from caches and JITs.
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chapters (6)
- 0:00Start
- 9:24THE PLAN
- 9:47HOW TO SPEED UP?
- 22:33SPECIALIZED METHODS
- 33:22UPDATE IVM AND JRUBY
- 34:32FAST LOOKUP
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