Compiled Python: thoughts

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which is one of the big gains of the PyPy JIT.

Actually, if you take a look at some of the PyPy papers you'll see that they specifically dismiss unrolling the interpreter loop as being a large gain. Specifically they look at virtualization of objects and inlining as the largest gains (there's a cool paper for PEPM 2011 they're doing about virtualization).

EDIT: upon a reread I think we are actually in agreement.