How to read the Stock CPU Usage data

android, cpu-usage

Solution

This should be the Unix load average. Wikipedia has a nice article about this.

The numbers show the average load of the CPU in different time intervals. From left to right: last minute/last five minutes/last fifteen minutes

Problem

On Ice Cream Sandwich, an option in the Developer Options is "Show CPU Usage", which adds an overlay on the screen (see screenshot below). My question is, how do I read the data ? I guessed that the package names are the process currently actives, but what does the red and green bars behind mean ? Also what are the 3 numbers on top of the packages ?

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