[issue15522] impove 27 percent performance on stringpbject.c( by prefetch and loop optimization)

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Please port your code to Python 3.3 and compare with it. Python 3.3 implementation of str.join() already more than twice faster then Python 2.7. Maybe your optimization will have no effect.

----------
nosy: +storchaka

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15522>
_______________________________________