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Minimizing your app’s CPU usage has many advantages—such as providing a faster and smoother user experience, and preserving device battery life. It also helps your app perform well on a variety of newer and older devices.

Prerequisite:

• Setup Powerup Android using the instructions given here.

Steps:

• To open the CPU Profiler, follow these steps:
  • Click View > Tool Windows > Android Profiler.
  • Select the device and app process you want to profile from the Android Profiler toolbar. If you've connected a device over USB but don't see it listed, ensure that you have enabled USB debugging.
  • Click anywhere in the CPU timeline to open the CPU Profiler.
• Record and inspect method traces
  • To start recording a method trace, select either the Sampled or Instrumented recording configuration, or a custom recording configuration you’ve created, from the dropdown menu and click Record .
  • Interact with your app and click Stop recording when you’re done. The profiler automatically selects the recorded time frame and displays its tracing information in the method trace pane.
    • If you want to inspect the method trace for a different thread, just select it from the thread activity timeline.

Resources

• Article on CPU Profiler
• Ask any questions in #powerup on Systers Open source Slack.

Work Submission:

• Record atleast 2 method traces for different configurations and submit them.
• Write a blog documenting CPU performance for various interactions with the app.