I would like to monitor the energy usage granularly and measure the impact of Bluetooth State preservation and restoration for background processing in iOS.
I'd like to measure the impact of iOS keeping "the" connection active to a Bluetooth device even if the app is not running.
Is there a way to do so?
Additional Info:
I have started recording energy usage for an app a week ago. Now that I imported the logs in Instruments there are none. Is this a hard limit of Xcode Instruments?
Similar question on energy usage logging:
There is also this question explaining more on the energy usage logging via Instruments. It highlights the limit of the unit of measure (20/20). I think this is a hard limit due to the difficulty on measuring the relative cell voltage of the phone battery. Apple probably implemented some approximation based on historic usage statistics.
