luci: use Python3 on LUCI Bug: crbug/1313718 Change-Id: I0c5e8904bf1c9a01b86dd8eada4c48b6b005dcf3
Perfetto is a production-grade open-source stack for performance instrumentation and trace analysis. It offers services and libraries and for recording system-level and app-level traces, native + java heap profiling, a library for analyzing traces using SQL and a web-based UI to visualize and explore multi-GB traces.
See https://perfetto.dev/docs or the /docs/ directory for documentation.