How can I discover CPU usage of my application in Android (programmatically)?

Question

Is there any way to find out CPU usage of my Android application programmatically? I'm aware of this question already, but it is about Corona SDK.

Note that I want to do this on non-root devices.

Any help would be appreciated.

Answer 1

I am not sure about programmatically, but you can use Android profiler to achieve the same.

1. Run your application, either in a physical device or emulator (doesn't matter here)
2. When the application is running, you will see a Profile tab in the toolbar

If you don't see a Profile tab, you can access the same using Run > Profile 'app'

Edit
Check this answer

Edit 2 You can use firebase performance monitoring for runtime data collection about performance. Follow this link

Answer 2

I just found a way to calculate the CPU usage of a process by PID. According to the doc, the /proc/[pid]/stat file contains status information about the process. So we can parse this file to get the following members:

• utime %lu
• stime %lu

Check this page to get more information about the /proc/[pid]/stat file and the way to parse it.

Also here is a relevant question about utime and stime.