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How Ruby Can Be Fast

Glenn Vanderburg

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All Rubyists know that in its current state, Ruby is slow. And our usual answer to critics is 'it's fast enough.' But there's no reason Ruby can't be a really fast language. New VMs are making Ruby faster, and we'll probably see Ruby get much faster over the next two or three years. But every Rubyist would benefit from an understanding of what's going on under the hood. This talk delves into the techniques that have been used to make dynamic languages fast, and explores how those techniques are being used by YARV, JRuby, Rubinius, MagLev, and others.

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