Author: Alex Gaynor <[email protected]>
Branch: extradoc
Changeset: r4106:6617ba2b6f20
Date: 2012-02-25 11:48 -0500
http://bitbucket.org/pypy/extradoc/changeset/6617ba2b6f20/
Log: new slides
diff --git a/talk/pycon2012/tutorial/slides.rst
b/talk/pycon2012/tutorial/slides.rst
--- a/talk/pycon2012/tutorial/slides.rst
+++ b/talk/pycon2012/tutorial/slides.rst
@@ -1,3 +1,44 @@
+First rule of optimization?
+===========================
+
+|pause|
+
+If it's not correct, it doesn't matter.
+
+Second rule of optimization?
+============================
+
+|pause|
+
+If it's not faster, you're wasting ime.
+
+Third rule of optimization?
+===========================
+
+|pause|
+
+Measure twice, cut once.
+
+(C)Python performance tricks
+============================
+
+|pause|
+
+* ``map()`` instead of list comprehensions
+
+* ``def f(int=int):``, make globals local
+
+* ``append = my_list.append``, grab bound methods outside loop
+
+* Avoiding function calls
+
+Forget these
+============
+
+* PyPy has totally different performance characterists
+
+* Which we're going to learn about now
+
Why PyPy?
=========
@@ -41,7 +82,7 @@
* moving computations to C, example::
- map(operator.... ) # XXX some obscure example
+ map(operator.attrgetter("a"), my_list)
PyPy's sweetpot
===============
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