Hi Andy, Using the CPython C API is very slow on PyPy. If your program is mostly spending its time issuing calls via the CPython C API, then getting "only" 2.5x slower is already good :-/ CFFI is much, much faster on PyPy. If you don't want to rewrite your CPython C API modules (even though you said they are very thin layer, which means it shouldn't be much work), then you're better off with CPython.
Additionally, make sure to read http://pypy.readthedocs.org/en/latest/faq.html#how-fast-is-pypy and to multiply the time estimates given there by 5 or 10: Raspberry Pi is much slower than desktop PCs. A bientôt, Armin. _______________________________________________ pypy-dev mailing list pypy-dev@python.org https://mail.python.org/mailman/listinfo/pypy-dev
