> Unlike ordinary JIT compilers for other languages, Ruby’s JIT compiler does JIT compilation in a unique way, which prints C code to a disk and spawns common C compiler process to generate native cod e.
Oh dear god.
What's the advantage over using LLVM's built-in JIT, or PyPy's JIT, or generating machine code directly, or anything else that doesn't have the overhead of spawning processes for compiling and linking? One of the goals listed is minimizing the JIT compilation time.
Ruby on PyPy already exists: https://github.com/topazproject/topaz
Performance is disappointing, though.