In the realm of operating systems, memory management is a critical element that significantly impacts performance. Android OS and applications have traditionally operated with a 4 KB page size, but the shift to 16 KB page size on ARM CPUs can provide a performance boost of 5-10%. Android 15 introduces the ability to run with either 4 KB or 16 KB page sizes, with the first 16 KB enabled Android system available as a developer option. This change affects various components of the OS, such as file systems, memory management, and application compatibility. Developers are encouraged to adapt their applications for compatibility with 16 KB devices for a more efficient Android experience in the future.
https://android-developers.googleblog.com/2024/08/adding-16-kb-page-size-to-android.html