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KawaKernel Source Code for SM-A217M/F

Based on A217MUBSBDWK1

About

KawaKernel is a performance oriented kernel tuned for pushing as much performance as possible from the device.

Features

I recommend using KernelManager to change kernel settings

Compiler

  • Azure Clang compiler (Clang 15)
  • Polly optimization flags
  • Exynos 3830 optimization flags

Performance

  • NET: Default TCP Congestion Control: BBR + fq_codel qdisc
  • NET: Enabled ECN negotiation by default
  • NET: Improved network proformance by using TCP_NODELAY
  • MEM: Backported linux-5.17 lib/LZ4
  • MEM: ZRam enabled with LZ4 as default compression algorithm
  • MEM: KSM enabled (turned off by default)
  • CPU: Overclocked to 2210 Mhz and underclocked to 130 Mhz
  • CPU: Default CPUFREQ Governor: SCHEDUTIL
  • GPU: Overclocked to 1196 Mhz and underclocked to 100 Mhz
  • GPU: High speed frequency is 754 Mhz by default
  • GPU: Adaptive power policy (default)

Battery savings

  • Implemented Capacity Aware Superset Scheduler
  • Implemented Boeffla wakelock blocker v1.1.0
  • Implemented Powersuspend v2.0 driver
  • Dynamic Fsync
  • Kernelspace battery saver mode
  • Samsung state notifier

Misc

  • Disabled SELinux audit logs
  • Disabled Samsung Knox
  • Disabled some of DEBUGFS
  • Disabled some log spam
  • Kernel support for Wireguard vpn
  • Mass storage support (DriveDroid, etc)
  • Prerooted with KernelSU
  • Implemented SchedTune Assist
  • CPU and GPU voltage control
  • Kernel upstream

And many more

Download

Installation

  • Follow instructions and install TWRP
  • Press install button then find "KawaKernel-A217X.zip"
  • Proceed to flash
  • Boot

KernelSU App

  • Download the KernelSU APK
  • This app can be used to install modules and give apps root access

Credits

xxmustafacooTR: KernelManager, voltage control implementation, overclock implementation. Physwizz: Initial project and overclock And those who are on the contribution list including on reference commits

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