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o Add reference to @Duality4Y's experiment with PyPy and CFFI

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binding. In context of #159
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Henner Zeller 2016-09-14 09:59:41 -07:00
parent e10f9f00fa
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python/README.md
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@ -26,11 +26,17 @@ sudo make install-python PYTHON=$(which python3)
### PyPy
The cython binding to PyPy seems to be somewhat working but extremely slow (20x
slower even than the regular Python binding, 160x slower than C++), so this is
not recommended. From glancing at the docs, the library might need to
be bound via **[CFFI](https://cffi.readthedocs.io/)** first. If anyone has
experience doing that, please consider preparing a pull request (ideally in
a way that it can be used as well for Python2/3 and does not change the
interface of the current Python binding).
not recommended.
So Cython is not good together with PyPy which works best with a
[CFFI](https://cffi.readthedocs.io/) binding. @Duality4Y did an experiment here
https://github.com/Duality4Y/rgb-matrix-cffi which works well with PyPy and is
about twice as fast as running Python3+cython (but Python3+cffi is slower than
Python3+cython, so we can't just replace everything with cffi).
Of course, it would be nice to have the fastest possible binding to all kinds
of Python interpreters. If anyone wants to work on that, this would certainly
be a welcome pull request.
Performance
-----------