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Careful what you measure: 2.1 times slower to 4.2 times faster – MJIT vs TruffleRuby

by Tobias Pfeiffer —

Have you seen the MJIT benchmarks and been impressed by their performance numbers? I was too, but upon closer inspection I’ve seen TruffleRuby go from 2.1 times slower to 4.2 times faster than MJIT. It’s an interesting story of what to measure and what really counts in the end.

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