test: update diff testing script to Python3 Also make the synthetic Python traces more resilient by using PYTHONPATH environment variable to find synth_common instead of adding a hardcoded arbitrary number of dirnames. Change-Id: I9482b2ed613e7f459ee82f05413a456bc1f91be5
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.