[pypy-commit] pypy default: explain better what this branch does

[antocuni]

Author: Antonio Cuni <anto.cuni at gmail.com>
Branch: 
Changeset: r93586:b4f48ae0cb1b
Date: 2017-12-28 11:39 +0100
http://bitbucket.org/pypy/pypy/changeset/b4f48ae0cb1b/

Log:	explain better what this branch does

diff --git a/pypy/doc/whatsnew-head.rst b/pypy/doc/whatsnew-head.rst
--- a/pypy/doc/whatsnew-head.rst
+++ b/pypy/doc/whatsnew-head.rst
@@ -7,4 +7,6 @@
 
 .. branch: cpyext-avoid-roundtrip
 
-Reduce conversions of c struct to rpython equivalent where possible
+Big refactoring of some cpyext code, which avoids a lot of nonsense when
+calling C from Python and vice-versa: the result is a big speedup in
+function/method calls, up to 6 times faster.