Call-graph profiling

python

See also

• https://stackoverflow.com/a/23164271
• https://graphviz.org/doc/info/command.html

Given a Python program main.py:

1. python -m cProfile -o main.py.profile main.py
   • If you need to pass args to main.py, do so after its appearance in this command
2. gprof2dot -f pstats main.py.profile -o main.py.dot
3. dot -Tpng main.py.dot

Open main.py.png and viola!