Your Android phone could soon feel faster without the need for a new chip or hardware upgrade. Google has introduced a new optimization technique called AutoFDO that squeezes more performance out of Android devices by improving the compilation of the operating system’s core code.
AutoFDO targets the core part of Android, the kernel, which sits between your apps and the phone’s hardware. It handles tasks like memory management, scheduling apps, and communicating with hardware, which ultimately takes up 40% of CPU time on Android devices.
For this reason, optimizing the kernel can make the device run faster, scrolling smoother, apps launching faster, and responsiveness when switching between apps.
How exactly does AutoFDO make Android faster?
AutoFDO stands for Automatic Feedback Directed Optimization and is intended to help the Android compiler make smarter decisions. Typically, when compiling software, the compiler tries to guess which parts of the code will be executed most frequently. These guesses determine how the code is arranged and optimized.
With AutoFDO, Google takes the guesswork out of it. Instead, the system collects real performance data from devices running apps. The system records which parts of the kernel are used most often and feeds this information back to the compiler. The next time the kernel is built, it will prioritize the frequently used code paths so that they run faster.
To collect this data, Google runs workloads that simulate how people actually use their phones. Tests include app launching, automated app exploration, and background system activity. Google says it used the 100 most popular Android apps to mimic real-world usage patterns.
The tech giant claims that these simulated workloads reflect approximately 85% of real device behavior, making the optimizations extremely realistic.
AutoFDO is introduced in the latest versions of the Android kernel (specifically the Android 15 and Android 16 branches). Android has come a long way since it was first released in 2008, and Google plans to extend this technique to newer kernel versions in the future.
However, you won’t see a new toggle in Settings or an icon on your screen as this update happens entirely in the background.
