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Old 08-12-2008, 07:43 AM   #1 (permalink)
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Hi,

I'm currently benchmarking (the old fashioned way) the cpu power consumption on various mobile devices including BlackBerry. I'm trying to find out what percentage of the battery energy is consumed by the cpu (while executing different apps).

Do you have any knowledge of BlackBerry software tools that measure the cpu power consumption. Did you happen to read lately any articles that focus on the power consumption/battery life of blackberries?

Regards,
Horia
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Old 08-13-2008, 09:48 AM   #2 (permalink)
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Hi,

I found a great tool for Symbian OS (Nokia smart phones). It's called Nokia Energy Profiler (google it... i cannot post the link yet). It does all the work one could do with test probes, power supplies and other hardware.

Do you know if some similar application exists for BlackBerry?

Regards,
Horia
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Old 08-13-2008, 02:57 PM   #3 (permalink)
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Seems like the most accurate way would be to hook an ampmeter up in line with the battery. Then you'd get a measurement of how much power is being drawn out of the battery.
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Old 08-13-2008, 07:29 PM   #4 (permalink)
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Quote:
Originally Posted by infinus
Seems like the most accurate way would be to hook an ampmeter up in line with the battery. Then you'd get a measurement of how much power is being drawn out of the battery.
That would give you overall consumption...not just CPU.
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Old 08-14-2008, 07:30 AM   #5 (permalink)
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That is true, but it would give you some data to work with. If you could get the specs for what the processor is expected to be at and correlate it with the at load and idle numbers the device is using you should be able to get a fairly good idea of what the processor is using.
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Old 08-15-2008, 09:14 AM   #6 (permalink)
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Well that's what we did so far (amp meter hooking)... That's why I was talking about the old fashioned kind of power benchmarking. This kind of measurement is giving you the overall consumption as Jase was saying, but you can do a differential measurement, right?

I mean... If I measure the power consumption while the processor is idle and the power consumption while the processor is executing some application and then compute the difference... that would give me the power consumed by the application, right? Am I doing anything wrong?

Anyways... I was trying to find a method (some application) to double check our measurements, but I guess there isn't such an app for BlackBerry...
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