Originally Posted by tomascus
All four cores are not online at the same time all the time. At idle, only 1 core is active at min frequency 300 mhz, the other cores come online when there is demand for them. Disabling cores has never helped improve battery life in my experience, merely causing slow downs and resulting in the CPU taking longer to complete processing, using up precious power before it's able to return to min frequency.
(My limited knowledge)
If this is the case - why does kernel modules like ECO-Mode exist that shuts down two cores and converts the phone into an DC one?
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Android Devices that I am using:
1. Sony Xperia Z1 - ROM: Tweaked, debloated & rooted stock 14.4.A.0.108 / Kernel: TrinityUltimate Kernel Experimental Build
2. Sony Xperia Tablet Z - ROM: Tweaked, debloated & rooted stock 10.5.A.0.230 / Kernel: UnleaZhed XTZ v0.2