Android Profiler

The Android Profiler in Android Studio 3.0 and higher replaces the Android Monitor tools. The Android Profiler tools provide real-time data to help you to understand how your app uses CPU, memory, network, and battery resources.

Transcript

1. Android Profiler Mashhad Android Talk’s
2. Github : @aliab Twitter: a_abdolahi Mail : ali@abdolahi.info
3. Start Building another awesome app...
4. The day after tomorrow
5. Start to measure...
6. Program Analysis From Wikipedia: In computer science, program analysis is the process of automatically analyzing the behavior of computer programs regarding a property such as correctness, robustness, safety and liveness.
7. program optimization work more efficiently or use fewer resources program correctness algorithm is correct with respect to a specification. Today Session!
8. Dynamic Analysis during runtime Static Analysis without executing the program Today Session!
9. Profiling measures, for example: • the space (memory) • time complexity of a program, • the usage of particular instructions, or the • frequency and duration of function calls. Most commonly, profiling information serves to aid program optimization.
10. Android Profiler Tools • Add in AndroidStudio 3.0 • Available in View > Tool Windows > Profiler
11. Advance Profiler If <= Android 7.1 then Enable advanced profiling! Benefits: • The event timeline • The number of allocated objects • Garbage collection events • Details about all transmitted files
12. * events related to user input, including keyboard activity, volume control changes, and screen rotations
13. - Green -> active - Yellow -> active but wait for IO - Gray -> is Sleep
14. RECORD THEM ALL 1) Sample Java Methods In interval capture method call stack 2) Trace Java Methods record a timestamp at the beginning and end of each method call * performance impact 3) Sample C/C++ Functions (api26>) Captures sampled traces of your app’s native threads 4) Trace System Calls (api24>) Captures fine-grained details that allow you to inspect how your app interacts with system resources.
16. Blue: Java Language / Green: Your code-Library Code / Orange: Android Platform * use W,S,A,D to navigate easily
18. * Arrange by package will save you!
20. Some helper method Debug.startMethodTracing(“sample”) Debug.stopMethodTracing()
21. Q/A
22. Thank you.