Perfetto

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.

System-wide profiling for Linux and Android

• Linux kernel tracing: Capture high frequency ftrace data: scheduling activity, task switching latency, CPU frequency and much more.
• Userspace profilers and extra probes: Native heap profiling, Java heap profiling, pollers for /proc stat files.
• Built into Android: Part of the platform since Android 9 Pie, runs on Linux as well.

App Tracing

• Efficient trace point instrumentation: Log your C++ app’s activity with high throughput, low overhead trace points.
• Structured and configurable events: Define custom protobuf messages to represent strongly-typed app-specific information, trace only what you need.
• Integrated with system-wide tracing: Correlate your app’s state with system-wide profiling data on the same timeline.

Trace Viewer

• Interactive trace exploration: Record, view and process trace data with the Perfetto UI.
• Supports popular trace format files: TraceEvent JSON, Android systrace, ftrace text output.
• Runs fully in your browser: No server interaction involved, works even if you are offline.

Trace Analysis

• SQL-based trace model: Trace processor ingests traces and exposes a SQLite-based interface to access the contents of the trace, both via shell and UI.
• Large trace analysis: Supports traces up to tens of GBs.
• Interoperable: Can import and export popular trace formats: Chromium JSON trace format, Android Systrace, ftrace, CSV.