Posted by Mayank Jain – Product Supervisor and Jomo Fisher – Software program Engineer

Get able to improve your app’s efficiency as Android embraces 16 KB reminiscence web page sizes

Android’s transition to 16 KB Web page measurement

Historically, Android has operated with the 4 KB reminiscence web page measurement. Nevertheless many ARM CPUs (the commonest processors for Android telephones) assist the bigger 16 KB web page measurement, providing improved efficiency beneficial properties. With Android 15, the Android working system is page-size-agnostic, permitting gadgets to run effectively with both 4 KB or 16 KB web page measurement.

Beginning November 1st, 2025, all new apps and app updates that use native C/C++ code concentrating on Android 15+ gadgets submitted to Google Play should assist 16 KB web page sizes. It is a essential step in the direction of making certain your app delivers the absolute best efficiency on the most recent Android {hardware}. Apps with out native C/C++ code or dependencies, that simply use the Kotlin and Java programming languages, are already suitable, however for those who’re utilizing native code, now’s the time to behave.

This transition to bigger 16 KB web page sizes interprets immediately into a greater consumer expertise. Gadgets configured with 16 KB web page measurement can see an total efficiency enhance of 5-10%. This implies quicker app launch occasions (as much as 30% for some apps, 3.16% on common), improved battery utilization (4.56% discount in energy draw), faster digicam begins (4.48-6.60% quicker), and even speedier system boot-ups (round 0.8 seconds quicker). Whereas there’s a marginal enhance in reminiscence use, a quicker reclaim path is value it.

The native code problem – and the way Android Studio equips you

In case your app makes use of native C/C++ code from the Android NDK or depends on SDKs that do, you will must recompile and doubtlessly modify your code for 16 KB compatibility. The excellent news? As soon as your software is up to date for the 16 KB web page measurement, the similar software binary can run seamlessly on each 4 KB and 16 KB gadgets.

This desk describes who must transition and recompile their apps

We’ve created a number of Android Studio instruments and guides that may provide help to put together for migrating to utilizing 16 KB web page measurement.

Detect compatibility points

APK Analyzer: Simply determine in case your app comprises native libraries by checking for .so information within the lib folder. The APK Analyzer also can visually point out your app’s 16 KB compatibility. You may then decide and replace libraries as wanted for 16 KB compliance.

Alignment Checks: Android Studio additionally offers warnings in case your prebuilt libraries or APKs are usually not 16 KB compliant. It is best to then use the APK Analyzer device to evaluate which libraries should be up to date or if any code adjustments are required. If you wish to detect the 16 KB web page measurement compatibility checks in your CI (steady integration) pipeline, you’ll be able to leverage scripts and command line instruments.

Lint in Android Studio now additionally highlights the native libraries which aren’t 16 KB aligned.

Construct with 16 KB alignment

Instruments Updates: Rebuild your native code with 16 KB alignment. Android Gradle Plugin (AGP) model 8.5.1 or larger routinely permits 16 KB alignment by default (throughout packaging) for uncompressed shared libraries. Equally, Android NDK r28 and better compile 16 KB-aligned by default. When you depend upon different native SDK’s, in addition they should be 16 KB aligned. You may want to succeed in out to the SDK developer to request a 16 KB compliant SDK.

Repair code for page-size agnosticism

Eradicate Hardcoded Assumptions: Establish and take away any hardcoded dependencies on PAGE_SIZE or assumptions that the web page measurement is 4 KB (e.g., 4096). As a substitute, use getpagesize() or sysconf(_SC_PAGESIZE) to question the precise web page measurement at runtime.

Check in a 16 KB setting

Android Emulator Help: Android Studio gives a 16 KB emulator goal (for each arm64 and x86_64) immediately within the Android Studio SDK Supervisor, permitting you to check your functions earlier than importing to Google Play.

On-Machine Testing: For suitable gadgets like Pixel 8 and eight Professional onwards (beginning with Android 15 QPR1), a brand new developer possibility permits you to change between 4 KB and 16 KB web page sizes for real-device testing. You may confirm the web page measurement utilizing adb shell getconf PAGE_SIZE.

Do not wait – put together your apps right now

Leverage Android Studio’s highly effective instruments to detect points, construct suitable binaries, repair your code, and completely check your app for the brand new 16 KB reminiscence web page sizes. By doing so, you will guarantee an improved finish consumer expertise and contribute to a extra performant Android ecosystem.

As at all times, your suggestions is vital to us – test recognized points, report bugs, recommend enhancements, and be a part of our vibrant neighborhood on LinkedIn, Medium, YouTube, or X.