perfetto: migrate PRESUBMIT.py to Python 3 Fix some issues found by git cl presubmit --all Bug: 258514344 Change-Id: Ia57b869e751b4673a5bdf807d9c634f606453e52
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.