This directory contains a variety of command line tools that can be used to run benchmarks, interact with speed services, and manage performance waterfall configurations.
Note you can also read the higher level Chrome Speed documentation to learn more about the team organization and, in particular, the top level view of How Chrome Measures Performance.
This command allows running benchmarks defined in the chromium repository, specifically in tools/perf/benchmarks. If you need it, documentation is available on how to run benchmarks locally and how to properly set up your device.
Documentation for other commands in this directory is also coming.