[issue14687] Optimize str%tuple for the PEP 393

[Serhiy Storchaka]

Serhiy Storchaka <storchaka at gmail.com> added the comment:

I see sped up +10% on Intel Atom (but 3.2 still 2x fast).

With non-ascii arguments speed up can be a little bit larger.

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nosy: +storchaka

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue14687>
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