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? Thanks
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