Perfetto

lastmod 2025-12-29created 2021-05-223 edits

System profiling, app tracing, and trace analysis tool

About

Open-source platform designed and developed under Google's lead, aiming to be a next-generation system tracing stack
Observes the execution flow of complex systems through tracing to analyze the causes of performance and functional problems
Production-grade stability and performance, adopted as the default tracing system of the Android operating system and the Chromium browser
Collects events from multiple processes and threads into a single unified trace through a high-performance tracing daemon
Provides a low-overhead C++17 SDK for precisely instrumenting timing and state changes in user-space applications
Collects system-wide context on Android and Linux, such as scheduling, CPU frequency, memory, and call stacks, through OS-level probes
Browser-based UI that visualizes large traces around a timeline and lets you explore them interactively
- Runs in major browsers without any installation, and can also open various external trace formats
Built-in SQL-based analysis engine lets you query traces like data and extract custom metrics
Official documentation is available at perfetto.dev, with guides organized step by step from beginners to experts
Open project that follows Google's open source community guidelines

Android app and platform developers can systematically analyze the root causes of performance problems such as app startup latency, frame drops, and ANRs
C/C++ developers can use the Tracing SDK to instrument application execution paths and precisely identify bottlenecks
Linux kernel and system developers can visualize ftrace-based kernel events to analyze scheduling, system call, and interrupt behavior
Chromium developers use Perfetto as the backend of chrome://tracing to debug the internals of the browser, V8, and Blink
Performance engineers and SREs can analyze various formats, such as Linux perf, macOS Instruments, and Chrome JSON trace, together with SQL

author Zer0 sitemap