Trending Now - Google Enhances Android for Improved Speed and Battery Life

WHO:

Google, Android LLVM toolchain team

WHAT:

Google is updating the Android kernel with Automatic Feedback-Directed Optimization (AutoFDO).

AutoFDO aims to make Android phones feel faster and improve battery life.

In early tests, Google found improvements including a 2.1% faster boot time and a 4.3% faster cold app launch time.

The kernel accounts for roughly 40% of CPU time on Android devices.

WHERE:

Tests were conducted in a controlled lab environment using Pixel phones.

WHEN:

The announcement was made in March 2026.

The changes are being deployed in the android16-6.12 and android15-6.6 kernel versions, with plans for the upcoming android17-6.18 release.

WHY:

The update is designed to guide the compiler along the most common execution paths to reduce CPU load and improve battery life.

HOW:

AutoFDO uses real-world execution patterns captured by recording the CPU’s branching history.

Data was collected by simulating usage of the top 100 most popular apps on smartphones.

The system identifies frequently used parts of the code, referred to as "hot" code, and optimizes the kernel around them.

(UPDATED March 11, 2026 23:08 UTC)

Google has announced an update to the Android kernel featuring Automatic Feedback-Directed Optimization, or AutoFDO, which aims to enhance the speed and battery life of Android devices. Early tests on Pixel phones showed promising results, including a 2.1% faster boot time and a 4.3% quicker cold app launch time, with the kernel update being deployed in the latest versions. This optimization works by analyzing real-world usage patterns from the top 100 apps to reduce CPU load and improve overall performance.