A project to measure overhead of Python bindings for C++ codebase, using simple test scenarios -- generation of Mandelbrot set image and simulation of Conway’s Game Of Life. Tested modules include: CPython API, cppyy, Cython, CFFI, pybind11, nanobind, SWIG.
Write-up and results: https://yanto.fi/2022/09/benchmark-of-python-c-bindings/
These instructions were tested on Ubuntu 22.04.
Install pre-requisites:
# System dependencies $ sudo apt install python3.10-dev pypy3 $ python3 -m pip install cppyy cffi Cython swig $ pypy3 -m pip install cppyy cffi Cython # Submodule dependencies $ git submodule update --init --recursive # Optional dependencies for generating result plots $ sudo apt install python3-pip python3-tk $ pip3 install matplotlib
To run the benchmark:
# Runs cmake to create a clean build $ ./build.sh # Runs through each available/configured test $ ./benchmark.sh mandelbrot, single, cpp, 0.345 sec mandelbrot, simple, cpp, 0.351 sec mandelbrot, complex, cpp, 0.329 sec mandelbrot, single, cpy_cython, 0.396 sec mandelbrot, simple, cpy_cython, 0.748 sec mandelbrot, complex, cpy_cython, 0.973 sec ...
To generate plots:
# Do a clean build and run ./becnhmark.sh multiple times
python3 ./collect_and_plot.pyTo debug python, install and use /usr/bin/python3.10-dgb as the interpreter.
$ sudo apt install python3.10-dbg
This project is licensed under the the MIT license - see the LICENSE.md file for details.