[issue21988] Decrease iterating overhead in timeit

[Armin Rigo]

Armin Rigo added the comment:

...but I don't think PyPy should be by itself a good enough reason to reject this patch.  It would be fine if timeit detects which interpreter it runs on, and only tries to unroll on CPython, for example.

----------

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21988>
_______________________________________