[pypy-commit] extradoc extradoc: start writing slides

[fijal]

Author: Maciej Fijalkowski <fijall at 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
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+
+============================================
+PyPy: current status and the GIL-less future
+============================================
+
+PyPy at EuroPython
+------------------
+
+::
+
+  fijal at 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