Talking head
Ruby Conference 2011

This presentation, by Konstantin Haase, is licensed under a Creative Commons Attribution ShareAlike 3.0
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What does really happen when we call a method? How do the different Ruby implementations actually figure out what code to execute? What plumbing is going on under the hood to get a speedy dispatch? In this talk we will have a look at the internals of the four major Ruby implementations - 1.8, 1.9, JRuby and Rubinius, focusing on their dispatch. From look-up tables and call site caches, to inlining and what on earth is invokedynamic? Expect C, C++, Java, and, of course, Ruby code. But fear not, all will be explained!

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