[pypy-commit] extradoc extradoc: py3k update #12

[pjenvey]

Author: Philip Jenvey <pjenvey at underboss.org>
Branch: extradoc
Changeset: r5109:ea4e00abbf96
Date: 2013-11-12 15:06 -0800
http://bitbucket.org/pypy/extradoc/changeset/ea4e00abbf96/

Log:	py3k update #12

diff --git a/blog/draft/py3k-status-update-12.rst b/blog/draft/py3k-status-update-12.rst
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+Py3k status update #12
+----------------------
+
+This is the 12th status update about our work on the `py3k branch`_, which we
+can work on thanks to all of the people who donated_ to the `py3k proposal`_.
+
+Here's an update on the recent progress:
+
+* Thank you to everyone who has provided initial feedback on the PyPy3 2.1 beta
+  1 release. We've gotten a number of bug reports, most of which have been
+  fixed.
+
+* As usual, we're continually keeping up with changes from the default
+  branch. Oftentimes these merges come at a cost (conflicts and or
+  reintegration of py3k changes) but occasionally we get goodies for free, such
+  as the `recent JIT optimizations`_ and `incremental garbage collection`_.
+
+* We've been focusing on re-optimizing Python 2 int sized (machine sized)
+  integers:
+
+We have a couple of known, notable speed regressions in the PyPy3 beta release
+vs regular PyPy. The major one being with Python 2.x int sized (or machine
+sized) integers.
+
+Python 3 drops the distinction between int and long types. CPython 3.x
+accomplishes this by removing the old int type entirely and renaming the long
+type to int. Initially, we've done the same for PyPy3 for the sake of
+simplicity and getting everything working.
+
+However PyPy's JIT is capable of heavily optimizing these machine sized integer
+operations, so this came with a regression in performance in this area.
+
+We're now in the process of solving this. Part of this work also involves some
+house cleaning on these numeric types which will also benefit the default
+branch.
+
+cheers,
+Phil
+
+.. _donated: http://morepypy.blogspot.com/2012/01/py3k-and-numpy-first-stage-thanks-to.html
+.. _`py3k proposal`: http://pypy.org/py3donate.html
+.. _`py3k branch`: https://bitbucket.org/pypy/pypy/commits/all/tip/branch%28%22py3k%22%29
+
+.. _`recent JIT optimizations`: http://morepypy.blogspot.com/2013/10/making-coveragepy-faster-under-pypy.html
+.. _`incremental garbage collection`: http://morepypy.blogspot.com/2013/10/incremental-garbage-collector-in-pypy.html