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I'm going to test it out and see how much of a power hit it takes. Looks like it may be a better idea to manually edit the file rather than just renaming it. By editing the file you can make sure the processor stays at full speed but still keep all the rest of the files power saving settings like screen brightness.
I wish I had a second iPad to do side by side testing.
also note that this really isn't over clocking the CPU. The settings file just tells the iPad that when it is on battery power to reduce the processor a little to save on battery life. Removing the file or editing it tells the ipad to work at full power, the same as it would if it was plugged into the AC wall charger.
What to alter int the file if you want to edit:
Drill down into the the SystemProfileDefaults key
You will find 5 key dictionaries. For each one you want to check under both of the "Battery Power" and "UPS Power" keys.
Make sure the "Dynamic Power Step" is set to 1
Make sure the "Reduce Processor Speed" is set to 0
Remember to always make a backup before changing anything
Last edited by MikesTooLz; 07-13-2010 at 02:09 PM.
Before testing this, there needs to be an app we can use to actually tell us the clock of the processor on the iPad. Otherwise, its the blind leading the blind.
So, is there a functional app that reports the processor speed?
What you are doing is changing the power settings so that it doesnt choke back the processor speed when running on battery to increase battery life. The speed would be the same as when you use the ipad while plugged in and charging. Not really any noticeable difference.
I understand, but I would still like to be able to see how much it underclocks the CPU for battery savings to determine if a hack like this is worth it for the inevitable loss in battery life. Seeing as how I have had no slowdowns on any application thus far, its not worth it at this point, but who knows.
Thanks for testing this Mike.
One less thing to fiddle with
The current model works fine so I'll not bother trying to improve it.
Just buy the next version as soon as it's released.
Mike, did you actually edit the file or did you just do plug in for one and unplug for the other?
The title of this thread is very misleading. It's no different than modifying the power settings on your laptop. My iPad is fast enough for anything that I throw at it right now. No need to kill my battery life for an extra unnoticeable trickle in CPU availability.