contourpy uses ASV (https://asv.readthedocs.io) for benchmarking.

ASV creates virtualenvs to run benchmarks in. Before using it you need to

pip install asv==0.4.2 virtualenv

or the conda equivalent.

To run all benchmarks against the default main branch:

cd benchmarks
asv run

The first time this is run it creates a machine file to store information about your machine. Then a virtual environment is created and each benchmark is run multiple times to obtain a statistically valid benchmark time.

To list the benchmark timings stored for the main branch use:

asv show main

ASV ships with its own simple webserver to interactively display the results in a webbrowser. To use this:

asv publish
asv preview

and then open a web browser at the URL specified.

If you want to quickly run all benchmarks once only to check for errors, etc, use:

asv dev

instead of asv run.

ASV configuration information is stored in benchmarks/asv.conf.json. This includes a list of branches to benchmark. If you are using a feature branch and wish to benchmark the code in that branch rather than main, edit asv.conf.json to change the line

"branches": ["main"],