...one of the most highly
regarded and expertly designed C++ library projects in the
world. — Herb Sutter and Andrei
Under boost-path/libs/math/performance you will find a (fairly rudimentary) performance test application for this library.
To run this application yourself, build the all the .cpp files in boost-path/libs/math/performance into an application using your usual release-build settings. Run the application with --help to see a full list of options, or with --all to test everything (which takes quite a while), or with --tune to test the available performance tuning options.
If you want to use this application to test the effect of changing any of the Policies, then you will need to build and run it twice: once with the default Policies, and then a second time with the Policies you want to test set as the default.