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      • Record Trace During App Startup

      Trace supports recording trace during the app startup process, which is essential for analyzing and optimizing app's start performance.

      Click Startup Trace

      In the topbar, click the Startup Trace button.

      Startup Trace Configuration

      Set duration (seconds)

      Enter the desired duration for recording trace during app startup. Press the Enter key to save your configuration.

      Startup Trace Duration

      Restart application

      Close and relaunch your app. Trace will automatically record trace during the startup period.

      Load startup trace

      After the app launches, choose target app, then click the Load Trace button in Lynx DevTool.

      Load Startup Trace

      View the startup trace

      Once the trace data has loaded, you will see a visualization of the app’s startup process for detailed analysis.

      Load Startup Trace Success

      FAQ

      After clicking Load Trace button shows: "Startup tracing is not enabled, cannot pull trace data"
      • Make sure to set a valid trace duration (greater than 0) in Startup Trace Configuration, then restart the app and click Load Trace button again.
      • Ensure a Lynx page is opened during or after the app startup process before clicking Load Trace button.
      Clicking Load Trace button shows: "Startup tracing is in progress, please try again later"
      • The app startup trace is still being recorded. Please wait for the process to finish and try clicking Load Trace button again later.
      Except as otherwise noted, this work is licensed under a Creative Commons Attribution 4.0 International License, and code samples are licensed under the Apache License 2.0.