My appliance energy use test shows nothing (iOS)

Question

I am testing the energy usage of an application with the Instrument's

Energy Usage feature .

However, when I test my application, this energy usage bar does not show anything similar to the following figure.

enter image description here

What does it mean?

Does this mean my application is not using too much energy?

I am very new to energy testing. I am testing my app with iPad2.

Please explain me. Thank.

+3

ios cocoa-touch instruments

Fire fist 04 Feb 13 at 14:48

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