> On 1 Jul 2015, at 09:58, Andy Baker <a...@pistuffing.co.uk> wrote: > > I am trying pypy as a performance increase over CPython. My code uses > standard python libraries (not numpy), plus 2 'C' libraries accessing > Raspberry Pi GPIO hardware with python wrappers. I have compiled both with > pypy (sudo pypy setup.py install). The pypy version runs with no problems > but is 2.5 times slower than CPython. From the performance stats, I believe > 2.2.1 should be on average 6 times faster. I presume it's my 'C' python > libraries which are the cause of the reduced performance. What do I need to > do to make these private libraries pypy compatible? >
When you say you have Python wrappers, how have you written them? Generally PyPy works best with Python interfaces written using CFFI[0]. Cory [0]: https://cffi.readthedocs.org/en/latest/
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