[pypy-issue] [issue763] set() uses 2x the memory as on CPython

[Fijal]

Fijal <fijall at gmail.com> added the comment:

I have a benchmark an explanation and a branch. Ask anto or pop up on IRC, but in 
short, pypy's dicts/sets have everused, because annotation of args is W_Root or 
None.

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nosy: +fijal

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PyPy bug tracker <tracker at bugs.pypy.org>
<https://bugs.pypy.org/issue763>
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