[pygccxml-development] Performance regression?

[Allen B. <al...@vr...>]

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 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.  :)

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

Hopefully this will provide enough information to give some insight into 
what is going on.  Please let me know if there is any more information I 
can provide.

Thanks,
Allen