Author: Maciej Fijalkowski <fij...@gmail.com> Branch: extradoc Changeset: r4218:2cacb69b787c Date: 2012-06-25 11:11 +0200 http://bitbucket.org/pypy/extradoc/changeset/2cacb69b787c/
Log: start writing slides diff --git a/talk/ep2012/stm/talk.rst b/talk/ep2012/stm/talk.rst new file mode 100644 --- /dev/null +++ b/talk/ep2012/stm/talk.rst @@ -0,0 +1,130 @@ + +============================================ +PyPy: current status and the GIL-less future +============================================ + +PyPy at EuroPython +------------------ + +:: + + fijal@helmut:~/src/extradoc/talk$ cd ep20 + ep2004-pypy/ ep2006/ ep2008/ ep2010/ ep2012/ + ep2005/ ep2007/ ep2009/ ep2011/ + +|pause| + +* for those who missed previous EPs, PyPy is a Python interpreter + with a JIT. + +Software archeology +------------------- + +"""A foreword of warning about the JIT of PyPy as of March 2007: single +functions doing integer arithmetic get great speed-ups; about anything +else will be a bit slower with the JIT than without. We are working +on this - you can even expect quick progress, because it is mostly a +matter of adding a few careful hints in the source code of the Python +interpreter of PyPy.""" + +Software archeology +------------------- + +* PyPy has been around since 2003 + +* first production ready (as advertised) release in December 2010 (1.4) + +* funded from various sources, including EU FP6 programme + +Current status +-------------- + +* release 1.9, **1.7x** faster than 1.5 (a year ago), + **2.2x** faster than 1.4, **5.5x** faster than CPython + +* more importantly, the range of programs PyPy can speed up has improved + greatly + +* implements 2.7.2 Python + +* packaging: Debian, Ubuntu, Fedora, Homebrew, Gentoo, ArchLinux, ... + (thanks to all the packagers) + +* windows (but still 32bit binary only) + +* cpython C extension compatibility module (cpyext) + moved from 'alpha' to 'beta': it runs e.g. a big part of + **PyOpenSSL** and **lxml** + +PyPy organization +----------------- + +* we joined the Software Freedom Conservancy + (Bradley successfully fighting U.S. bureaucracy) and + are happy about it + +* funding: new model, more than 100'000$ in donations, + both from a large number of individuals and a few large companies + and the Python Software Foundation + +Let's talk about Python +----------------------- + +* rapid prototyping, run your web server in 3 seconds, run + your script in 0.1s + +* Python is very successful as a glue language - integrating + with C is "easy" + +Let's talk about PyPy +--------------------- + +* JIT warmup times are significant, making rapid prototyping + harder + +* we yet need to have a good way to call C from PyPy + +JIT warmup times +---------------- + +* it's complicated + +* we did not spend much time on that topic + +* come and talk to us + +XXX ask antonio if he can cover this on a jit talk + +Calling C +--------- + +XXX xkcd 927 (google: xkcd standards) + + +Calling C landscape +------------------- + +* CPython C extensions + +* SWIG, SIP, wrapper generators + +* ctypes + +* Cython + +* CFFI (our new thing) + +CFFI slide +---------- + +* XXX a bit of example code + +NumPy +----- + +XXX + +STM +--- + +XXX _______________________________________________ pypy-commit mailing list pypy-commit@python.org http://mail.python.org/mailman/listinfo/pypy-commit
