The spec says one thing - real-world implementations say another.

InfoQ@techhub.social · 2026-10-01 05:53

Posted in 資訊系統設計

Building the YK JIT compiler revealed a hard truth: Python, Ruby & Lua specs are inherently incomplete.

The real source of truth? The standard C reference implementation.

Laurence Tratt explains why C interpreters dictate real-world behavior.

🔗 Watch now [transcript included] - https://www.infoq.com/presentations/yk-meta-tracing-jit-compiler/

#ProgrammingLanguages #Compilers #Python #Ruby #Lua #SoftwareEngineering #InfoQ

Automatically Retrofitting JIT Compilers

Laurence Tratt discusses yk, an open-source meta-tracing JIT compiler framework. He shares how to automatically speed up C-based language interpreters like Lua and MicroPython with minimal, non-invasive code changes. He explains the inner workings of tracing loops, optimizing compiled traces using developer hints, and managing complex deoptimization back to the interpreter.

www.infoq.com

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