[pypy-issue] [issue905] ZipFile.extractall is very slow compared to CPython 2.6

[Alex Gaynor]

Alex Gaynor <alex.gaynor at gmail.com> added the comment:

It looks like that time is likely from the memcpy-ish loop we have in 
get_nonmoving buffer.  That's likely much much slower than it needs to be because 
GCC doesn't vectorize our loops: http://gcc.gnu.org/bugzilla/show_bug.cgi?
id=50693

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nosy: +agaynor

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