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@rafitadev rafitadev released this 02 Jul 16:09
BPF5.4+Overclock
8ab5637

Exynos8890 Kernel Changelog

Galaxy Note7 Build

WARNING: This build is only for the Galaxy Note7 Exynos (8890) variant. Do NOT flash on Snapdragon models or any other devices.

One UI 8.5 / Android 16 QPR2 Performance Pack

This is one of the biggest updates ever made for the Exynos8890 kernel, featuring extensive optimizations across CPU, GPU, memory management, scheduler, power management, drivers, and overall system responsiveness.

Designed to provide a smoother daily experience, lower latency, stronger benchmark performance, improved gaming, and broader compatibility with modern Android versions.

New Features

  • Added full One UI 8.5 support.
  • Added Android 16 QPR2 GSI compatibility.
  • Added SukiSU Ultra 4.1.3 support.
  • Improved compatibility with modern Android userspace.

Performance & CPU

  • Completely reworked CPU performance tuning.

  • Expanded cpufreq_interactive boost framework.

  • Improved boost responsiveness for:

    • Input
    • Fingerprint
    • SurfaceFlinger
    • App Launch
    • Benchmark Mode

  • Better CPU burst handling.

  • Reduced input latency.

  • Improved scheduler responsiveness.

  • Faster application launch times.

  • Better sustained performance under heavy workloads.

  • Updated runtime tuning through sysfs interfaces.

GPU / Mali

  • Updated Mali GPU driver to r32p0.
  • Large Mali driver optimization pass.
  • Improved GPU scheduling.
  • Better DVFS behavior.
  • More stable GPU frequency scaling.
  • Improved sustained GPU performance.
  • Better benchmark consistency.
  • Improved GPU utilization reporting.
  • Better compatibility with kernel managers.
  • Reduced rendering latency.

Networking / BPF

  • Added Shiron 5.4 BPF implementation.
  • Improved eBPF compatibility.
  • Updated kernel networking infrastructure.
  • Better support for modern Android userspace.

Special Thanks: Thanks to Shiron for the BPF implementation.

Memory Management

  • Additional PageBoost optimizations.
  • Improved page cache behavior.
  • Better reclaim tuning.
  • Optimized VM subsystem.
  • Improved vmscan performance.
  • Better LowMemoryKiller behavior.
  • Reduced memory pressure stutters.
  • Improved multitasking responsiveness.
  • Lower background memory overhead.

Drivers

  • Updated numerous kernel drivers.
  • Large driver optimization pass.
  • General driver cleanup.
  • Improved hardware compatibility.
  • Better subsystem stability.
  • Improved device initialization.
  • Various optimizations across multiple drivers.

Power Management

  • Improved PWRCAL implementation.
  • Better DFS behavior.
  • Updated ASV handling.
  • Improved voltage management.
  • Better thermal balancing.
  • Improved MIF devfreq tuning.
  • Optimized memory bus scaling.
  • Lower unnecessary power consumption.
  • Better efficiency under both idle and heavy workloads.

Display

  • Improved DECON pipeline.
  • Faster display response.
  • Lower rendering latency.
  • Better SurfaceFlinger interaction.
  • Improved display synchronization.

Scheduler

  • Additional scheduler optimizations.
  • Better task placement.
  • Improved wake-up latency.
  • Better foreground task prioritization.
  • Improved benchmark behavior.
  • Smoother UI performance.

Filesystem & Storage

  • Improved SDFAT support.
  • MMC optimizations.
  • Storage stability improvements.
  • Better filesystem compatibility.
  • General storage cleanup.

Kernel Compatibility

  • Improved KernelSU compatibility.
  • Updated SukiSU Ultra integration.
  • Better namespace handling.
  • Improved mount compatibility.
  • Improved syscall handling.
  • Better Android 16 compatibility.
  • Snapshot fixes.
  • Wireless fixes.
  • Integer math fixes.
  • Multiple stability improvements.

Build System

  • Improved LLVM/Clang toolchain.
  • Better Makefile organization.
  • Updated build scripts.
  • Improved ARM build flow.
  • Better compiler compatibility.
  • Cleaner kernel configuration.

Runtime Optimizations

  • Updated launch optimization scripts.
  • Improved benchmark mode.
  • Better runtime tuning.
  • Updated optimization framework.
  • Improved Cronos flow.
  • Updated kernel runtime configuration.

General Improvements

  • Hundreds of kernel optimizations.
  • Extensive driver improvements.
  • General code cleanup.
  • Various upstream fixes.
  • Reduced system overhead.
  • Better stability.
  • Lower latency.
  • Improved responsiveness.
  • Better overall user experience.

Summary

This release is a major overhaul of the Exynos8890 kernel, bringing one of the largest optimization updates to date.

Highlights

  • Full One UI 8.5 support
  • Android 16 QPR2 GSI compatibility
  • Mali GPU Driver updated to r32p0
  • Added Shiron 5.4 BPF
  • SukiSU Ultra 4.1.3 support
  • Expanded CPU Boost Framework
  • Improved PageBoost implementation
  • Hundreds of kernel and driver optimizations
  • Better smoothness, gaming performance, battery efficiency, stability, and benchmark scores

Built for users who want the best possible experience on the Exynos8890 platform.

Full Changelog: https://github.com/rafitadev/RafitaChan_8890/commits/BPF5.4+Overclock

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