perfetto: switch base::Optional to std::optional Now that base::Optional is simply a shim for std::optional and it's stuck without being reverted, migrate everything over to use std::optional directly. Change-Id: Ic2595fc1cfae8f3b62350f8bf206675c709894a1
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.