ARM cpu question

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1 Oct 2007
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Can an ARM cpu run on a single core? Say at night time when nothing is happening, shut everything down and just have 1 core running at min GHz. Or are they locked in blocks?
 
If the software forces it to one core then it's possible. But unless you go custom ROM and the kernel/ROM developer specifically bakes this feature in, then it's not possible.

I'm guessing you're trying to reduce power drainage during the night? What phone is it? I don't think limiting everything to a single core at low clocks will do much for power saving. You're better off trying to limit apps from waking the phone (eg to check new messages,etc) during that period.
 
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