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  • Perfetto - System profiling, app tracing and trace analysis
    Record, view and process trace data with the Perfetto UI file_copy Supports popular trace format files TraceEvent JSON, Android systrace, ftrace text output offline_bolt Runs fully in your browser No server interaction involved, works even if you are offline Open the UI Trace Analysis
  • Perfetto - System profiling, app tracing and trace analysis
    Perfetto is a production-grade open-source stack for performance instrumentation and trace analysis It offers services and libraries 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
  • Quickstart: Record traces on Android - Perfetto Tracing Docs
    From Android 12 (S), data misc perfetto-configs can be used instead Pull the file using adb pull data misc perfetto-traces trace ~ trace perfetto-trace and open it in the Perfetto UI NOTE: On devices before Android 10, adb cannot directly pull data misc perfetto-traces
  • Quickstart: SQL-based analysis and trace-based metrics - Perfetto . . .
    The trace conversion quickstart gives an overview on how to convert Perfetto traces to legacy formats to integrate with existing tooling The Trace Processor documentation gives more information about how to work with trace processor including details on how to write queries and how tables in trace processor are organized
  • Frequently Asked Questions - Perfetto Tracing Docs
    Users are recommended to emit TrackEvent instead, Perfetto's native trace format See this guide for how common JSON events can be represented using TrackEvent How can I use Perfetto tooling without instrumenting my program?
  • PERFETTO (1) - Perfetto Tracing Docs
    The general syntax for using perfetto in simple mode is as follows: adb shell perfetto [ --time TIMESPEC] [ --buffer SIZE] [ --size SIZE] [ ATRACE_CAT | FTRACE_GROUP FTRACE_NAME] The following table lists the available options when using perfetto in simple mode -t, --time TIME[s|m|h] Specifies the trace duration in seconds, minutes, or hours
  • Recording traces on Android boot - Perfetto Tracing Docs
    Perfetto CI; ProtoZero; Security model; Statsd Checkpoint Atoms; Recording traces on Android boot Since Android 13 (T), perfetto can be configured to automatically start recording traces on boot This can be useful to profile the boot process Steps Create a file with the desired trace configuration in Text format (not binary)
  • Trace configuration - Perfetto Tracing Docs
    Since Android 12 data misc perfetto-configs can be used for storing configs On devices before Android 10, adb cannot directly pull data misc perfetto-traces Use adb shell cat data misc perfetto-traces trace > trace to work around
  • Perfetto UI
    Perfetto UI - An unrecoverable problem occurred If you are seeing this message, something went wrong while loading the UI In most cases this is due to very slow or flaky network and it goes away by disabling and re-enabling WiFi or trying reloading
  • Tracing 101 - Perfetto Tracing Docs
    Perfetto is a suite of tools for software performance analysis Its purpose is to empower engineers to understand where resources are being used by their systems It helps identify the changes they can make to improve performance and verify the impact of those changes





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