GoKawiilYk JIT toolkit adapted for CPython, outperforms Python's experimental JIT on some benchmarks
Researchers applied the yk interpreter JIT-compilation toolkit to CPython, producing a variant called ykcpython, after earlier testing had focused on the much smaller PUC Lua interpreter. The work took roughly 3-4 days of direct effort on top of a week and a half of generic bug fixing in yk, and benchmark results using the AWFY suite show ykcpython beating both standard CPython and CPython's own experimental JIT on most tests, though not all.