Re: [PyOpenGL-Users] Rolling spectrogram with pyopengl

[Timothée L. <tim...@lp...>]

Silverstein a écrit :
>
>> Thanks for your comment. I understand your idea about the FFT. However
>> in my case profiling tells that drawing is the bottleneck, not
>> processing. To give you a more precise idea, here is the result
>> of cProfile on my application:
>> http://imgur.com/deMyT.png
>>
>>   
> Can you say a bit about what tool you are using to do the profiling 
> and where I can get it?  It looks very useful.
>
> Herc
>
Hi Herc,

The profile itself is obtained with a standard python profiling module, 
called cProfile. My main script is called "friture.py", so I run the 
following command :

    python -m cProfile -o output.pstats ./friture.py

Then, I get profile statistics in the "output.pstats" file, which is 
then transformed by a script called "gprof2dot.py" to a ".dot" file that 
can be processed by Graphviz, which finally gives the output png :

    ./gprof2dot.py -f pstats output.pstats -n 0.1 -e 0.02| dot -Tpng -o 
output2.png

"dot" is part of Graphviz (www.graphviz.org), and "gprof2dot.py" can be 
found here: http://code.google.com/p/jrfonseca/wiki/Gprof2Dot

Best regards,

Timothée