[Python-Dev] [GSoC] Developing a benchmark suite (for Python 3.x)

[Michael Foord]

On 08/04/2011 11:18, Stefan Behnel wrote:
> Maciej Fijalkowski, 08.04.2011 11:41:
>> On Fri, Apr 8, 2011 at 11:22 AM, Stefan Behnel<stefan_ml at behnel.de>  
>> wrote:
>>> [snip...]
>>> So, once CPython is up and running in the benchmark test, adding Cython
>>> should be as easy as copying the configuration, installing Cython 
>>> and adding
>>> two lines to site.py.
>>
>> can you provide a simple command line tool for that? I want
>> essentially to run ./cython-importing-stuff some-file.py
>
> You can try
>
>     python -c 'import pyximport; \
>                pyximport.install(pyimport=True); \
>                exec("somefile.py")'
>
> You may want to configure the output directory for the binary modules, 
> though, see
>
> https://github.com/cython/cython/blob/master/pyximport/pyximport.py#L343
>
> Please also take care to provide suitable gcc CFLAGS, e.g. "-O3 
> -march=native" etc.
>
>

If this works it is great. I don't think doing this work should be part 
of the gsoc proposal. Considering it as a use case could be included in 
the infrastructure work though.

All the best,

Michael Foord

>>> Obviously, we'd have to integrate a build of the latest Cython 
>>> development
>>> sources as well, but it's not like installing a distutils enabled 
>>> Python
>>> package from sources is so hard that it pushes Cython out of scope 
>>> for this
>>> GSoC.
>>
>> no, that's fine. My main concern is - will cython run those
>> benchmarks?
>
> In the worst case, they will run at CPython speed with uncompiled 
> modules.
>
>
>> and will you complain if we don't provide a custom cython
>> hacks? (like providing extra type information)
>
> I don't consider providing extra type information a hack. Remember 
> that they are only used for additional speed-ups in cases where the 
> author is smarter than the compiler. It will work just fine without them.
>
> Stefan
>
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