Android handset shows a list of Developer Tools and Options (under Settings > Developer) to the user and can be displayed on the user's screen. There is various data which gets displayed like: 6.002 / 6.48 / 8.23,and next lines shows some services running in the background . What is the concept behind this?
3 Answers
Numbers in the first row shows average CPU usage in time intervals 1 minute/5 minutes/15 minutes. Color bars shows how much time CPU spends in userspace(green), kernel(red), i/o(blue).

- 6,568
- 3
- 42
- 53
-
8cpu usage in what?? percentage ?? @Leszek – DJphy Nov 27 '15 at 07:12
-
2It's measured as load average. See this Wikipedia article for an explanation: https://en.wikipedia.org/wiki/Load_%28computing%29 – numbermaniac Apr 09 '18 at 07:26
-
Number of proceses (or threads?) waiting for execution in queue. 1.8 is fine for 2 CPU, but means overload for 1cpu. – gavenkoa Aug 14 '20 at 12:44
From the developer site we have:
Show CPU Usage: Displays CPU meters at the top of the screen, showing how much the CPU is being used. The top red bar shows overall CPU usage, and the green bar underneath it shows the CPU time spent in compositing the screen. Here http://developer.android.com/tools/debugging/debugging-devtools.html
Also we have an answer about it here https://stackoverflow.com/a/10829592/826657

- 1
- 1

- 6,101
- 4
- 30
- 51
It's specifically for developer purposes. They can monitor the handset's "behind-the-scenes" activity down to every bit. You can use this to monitor how your app or other apps are working with your device. You can see how much CPU they are using, the layouts in the UI and much much more. See this guide.

- 4,210
- 8
- 33
- 41