Author: Romain Guillebert <romain...@gmail.com> Branch: extradoc Changeset: r5473:6790ce64ab6c Date: 2014-12-03 17:40 +0100 http://bitbucket.org/pypy/extradoc/changeset/6790ce64ab6c/
Log: First WIP for the Scipy India talk diff --git a/talk/scipyindia2014/talk.rst b/talk/scipyindia2014/talk.rst new file mode 100644 --- /dev/null +++ b/talk/scipyindia2014/talk.rst @@ -0,0 +1,79 @@ +============================= +PyPy and the scientific stack +============================= + +Introduction +------------ + +* PyPy contributor + +* Hired to work on NumPyPy + +* Interested in library compatibility + +* @rguillebert on twitter, feel free to send me questions + +* Software consultant + +* Feel free to interrupt me + +PyPy +---- + +* PyPy is an implementation of the Python language + +* Speed is one of its main advantages + +* Compatibility is very important to us + +Speed +----- + +* XXX : Insert speed.pypy.org screenshot + +Python +------ + +* Python is a great language + +* Very dynamic + +* Easy to introspect (pdb is just another Python module) + +* Considered slow + +How to get performance out of Python code ? +------------------------------------------- + +* Rewrite your code in C + +* Rewrite your code in Cython + +* Rewrite your code in some subset/dialect of Python like Numba + +* Just write Python and use PyPy, pay only the cost of what you use + +PyPy And C +---------- + +* PyPy is pretty good at interacting with C code with cffi + +* C extensions written using the Python C API can work, but they're slow and support is incomplete + +* We have ideas to help with that in some use cases + +Python C API +------------ + +* Leaks way too many implementation details (refcounting, PyObject structure fields) + +* Makes it hard to improve Python while supporting 100% of the API + +* Should we have a new C API ? + +NumPyPy +------- + +* ~80% of the numpy tests are passing + +* XXX _______________________________________________ pypy-commit mailing list pypy-commit@python.org https://mail.python.org/mailman/listinfo/pypy-commit
