[Cython] optimization tips...?

[Stefan Behnel]

Stefan Behnel wrote:
> Jean-Francois Moulin wrote:
>> One more question related to this... I do I profile a cython file (the
>> info from the
>> python profiler is no longer split into the different subfunctions...)?
>
> If you're on Linux, use valgrind's callgrind and kcachegrind. It will give
> you clickable call graphs with relative timings per branch, and timing
> annotated C sources. Perfect for finger pointing.

... although, after reading your source, I recommend taking a look at the
generated C source first. It will give you all sorts of ideas what to do
to remove unnecessary Python object creations and to reduce general Python
interaction.

Stefan