Message 277285 - Python tracker

> $ ./python -m timeit -s "def f(**kw): pass" -s "b = {'b': 2}" -- "f(a=1, **b)"
> Unpatched:  100000 loops, best of 3: 7.64 usec per loop
> Patched:    100000 loops, best of 3: 3.14 usec per loop

Impressive numbers but... is it a perf regression compared to Python 3.5 (and even 2.7)? Or a perf speedup compared to Python 3.5?