Re: [pygccxml-development] Performance regression?

[Roman Y. <rom...@gm...>]

On 8/2/07, Allen Bierbaum <al...@vr...> wrote:
> One of the big projects I use Py++ with seems to be suffering from
> performance issues.  I used to be able to generate the bindings in
> approximately 10 minutes, now it is taking a little over 80 minutes.

:-(. I will try to find out what happened. Can you provide the
versions you are using?
Also I must admit that something strange is going on. I am testing
Py++ on Python-Ogre project and I didn't see x8 performance
deterioration ( hope this is the right word to use).

Do you run same version of script?

> I have been so happy with Py++ as of late that I haven't even been
> paying attention to the changes going into Py++ so I don't know what may
> be causing the slow down.  :)

May be unicode support?

> I did collect some timing information though in the hopes that someone
> smarter then me may be able to spot some corners of Py++ that could be
> optimized.
>
> During my run I output basic timings of:
>
> Code generation complete.  took: 5099.32698894
>      ...
>      module builder init: 253.73842907
>      ...
>      build creators: 1991.69337511
>      write module: 2821.93180895
>
> I ran the whole thing through the cProfile module to see where python
> was spending it's time. The raw data is available at:
> https://realityforge.vrsource.org/twiki/pub/PyOpenSG/TempArea/gen_bindings.prof.bz2
>
> A report summarizing the results (sorted by time spent exclusively
> within the method) is available here:
> https://realityforge.vrsource.org/twiki/pub/PyOpenSG/TempArea/stats.txt

Can you also provide the profile information for your previous version of Py++?

-- 
Roman Yakovenko
C++ Python language binding
http://www.language-binding.net/