Understanding energy metrics

[chandra-mozark]

I am trying to measure the energy consumed by an app. Would xcode-energy be the right option to measure the same? What exactly do the metrics and the values mean in the ouput here:

{
        'energy.overhead': -10.0,
        'kIDEGaugeSecondsSinceInitialQueryKey': 32,
        'energy.version': 1,
        'energy.gpu.cost': 0,
        'energy.cpu.cost': 9.883696502865934,
        'energy.networkning.overhead': 0,
        'energy.appstate.cost': 8,
        'energy.location.overhead': 0,
        'energy.thermalstate.cost': 0,
        'energy.networking.cost': 0,
        'energy.cost': -0.11630349713406574,
        'energy.cpu.overhead': 0,
        'energy.location.cost': 0,
        'energy.gpu.overhead': 0,
        'energy.appstate.overhead': 0,
        'energy.inducedthermalstate.cost': -1
    }