Move (almost) all widgets into ui/src/widgets timestamp.ts and vega_view.ts rely on actions/globals and are a bit more tricky to disentangle from frontend. Change-Id: I4d0a2ce59a89cd54224acab597cba2b6c14542fe
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.