[pypy-dev] Speeding up zlib in standard library

[Peter Cock]

On Tue, Mar 13, 2012 at 9:51 PM, Benjamin Peterson <benjamin at python.org> wrote:
> 2012/3/12 Peter Cock <p.j.a.cock at googlemail.com>:
>> Given http://doc.pypy.org/en/latest/extending.html describes this
>> mixed module approach as the "most advanced and powerful way"
>> of calling C code, does that mean in this particular case there are
>> no low handing fruit to speed up using zlib in PyPy?
>
> Do you know the slowness comes from the binding overhead, though?
> It could be from buffering, for example.

I don't know - I was assuming any buffering would be the same
comparing PyPy 1.8 against Python 2.6 (and 3.2). That was one
reason for my email - is binding to C relatively slow (compared to
the rest of PyPy running pure Python)?

Is there any PyPy specific advice on profiling (and how this differs
to under 'C' Python)?

Thanks,

Peter