[pypy-dev] GSOC Ideas

[Maciej Fijalkowski]

On Wed, Mar 28, 2012 at 10:47 AM, Stefan Behnel <stefan_ml at behnel.de> wrote:
> Maciej Fijalkowski, 28.03.2012 10:28:
>> On Wed, Mar 28, 2012 at 9:33 AM, Stefan Behnel wrote:
>>> Armin Rigo, 23.03.2012 07:55:
>>>> On Fri, Mar 23, 2012 at 00:13, Lynne Wallace wrote:
>>>>> I was wondering if anyone else had ideas or suggestions for gsoc projects?
>>>>
>>>> We have a list of projects (which might or might not fit a GSoC size):
>>>> http://doc.pypy.org/en/latest/project-ideas.html
>>>
>>> I'm missing the project to fix up and optimise cpyext from that list. I
>>> think that would be one of the most widely rewarding in the short run. And
>>> it has the advantage for a GSoC that optimisation is generally open-ended,
>>> so it can stop at any time with a positive result.
>>
>> Indeed.
>>
>> Can you write down the necessary paragraph? You can just commit it
>> (it's pypy/doc/project-ideas.rst) or I'll commit it if you don't have
>> commit privs.
>
> I don't, so here's some plain text:
>
> """
> Optimising cpyext (CPython C-API compatibility layer)
>
> A lot of work has gone into PyPy's implementation of CPython's C-API over
> the last years to let it reach a practical level of compatibility, so that
> C extensions for CPython work on PyPy without major rewrites. However,
> there are still many edges and corner cases where it misbehaves, and it has
> not received any substantial optimisation so far.
>
> The objective of this project is to fix bugs in cpyext and to optimise
> several performance critical parts of it, such as the reference counting
> support and other heavily used C-API functions. The net result would be to
> have CPython extensions run much faster on PyPy than they currently do, or
> to make them work at all if they currently don't. A part of this work would
> be to get cpyext into a shape where it supports running Cython generated
> extensions.
> """
>
> Stefan
>
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Done.

I would not like to do that as a SoC myself, because that sounds like
a mess, but who am I to judge :)