Experiments in sharing Java VM technology with CRuby

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" summary

IBM embeds the Testarossa JIT from the OMR project into CRuby (tested on Ruby 2.2.3/2.1.5), generating IL from YARV bytecodes, using autogenerated C callbacks for complex opcodes and a simple countdown compilation trigger. Microbenchmarks show up to >2x and a geometric mean of 22.5% faster versus the interpreter (Rails runs but shows no JIT wins yet). Work includes an integrated OMR GC, synchronous compilation that blocks the main thread, and a Docker-based tech preview on GitHub.

AI-written summary · about

" chapters (7)

1. 0:00Introduction and background
2. 3:55Why IBM created OMR
3. 6:54Testarossa JIT integration in MRI
4. 17:18Performance results and benchmarks
5. 19:04Challenges and future plans
6. 22:39Technology preview release
7. 24:28Q&A session

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