Experts advise users around the world to refrain from updating to iOS 18 until new builds are released that will eliminate existing bugs and flaws. The main problem of the new version is the possibility of a decrease in the clock frequency of the processor, which leads to a decrease in battery consumption. Some experts even claim that this is not a bug, but a functional feature.
A specialist with the pseudonym Geekerwan discovered a new, unannounced feature in iOS 18 related to the gradual increase in processor clock frequency. Enthusiasts found out that the system scheduler is configured so that the chip accelerates to the maximum frequency not immediately, but in stages.
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The developers hope that this approach will have a positive effect on the autonomy of the device. However, the results of the new functionality are not impressive yet. For example, the iPhone 15 Pro Max on iOS 17 shows 2999 and 7779 points in single and multi-threaded modes, respectively, and after updating to iOS 18, these indicators decrease to 2885 and 7476 points.
Journalists from reputable publications note, that this approach can really improve the energy efficiency of gadgets, but in practice it limits iPhone owners in the ability to test the maximum performance of chipsets.