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chickernel-stable-2.zip 2024-08-27 23.2 MB
README.md 2024-08-26 6.7 kB
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/*
* Your warranty is no longer valid, unless you lie.
*
* I am not responsible for bricked devices, strained relationships,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this kernel
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*
*/

A kernel carefully optimized for

  • low-memory, cpu, f2fs and scheduling performance
  • battery and power savings
Speciifically crafted for 4GB variant in mind ❤️
  • Supports tapas/topaz/sapphire/sapphiren

XDA Forums thread SourceForge mirror

📋 Click here to see new changes introduced in this release compilation: - tune our compiler specifically for sm6225-AD to achieve bigger performance improvements - bump clang from 18.0.1 -> 19.0.0 sched: - update the Capacity Aware Superset Scheduler (CASS) implementation mm: - stop kswapd when it is not needed to save resources. - various performance improvements cpuidle: - revert teo util-awareness to reduce power usage - various performance improvements - various power usage improvements kernel: - disable profiling support so we can reduce the kernel size - unselect unrelated platform support to reduce kernel size - unselect unneeded errata workarounds not affecting our SoC to improve performance - build `ZRAM` and `ZSMALLOC` modules into the kernel image, as most of the time, the external modules are outdated merge: - CAF (Qualcomm) changes - Xiaomi changes
📋 Click here to see changelog from previous release(s) mm: - mlgru: enable mlgru by default to reduce app killings in background usb: - fix usb tethering - stop system from panicking upon enabling usb-tethering in android settings wakelocks: - add timeout to wakelocks to stop system from not entering deep-sleep at all - alarmtimer: minimize wakeup time to reduce power consumption - avoid excessive and unnecessary wakeup attempts sched: - cass: add capacity aware superset scheduler (CASS) to improve single-core performance and latency - fair: reduce PELT half-life time to increase interactivity - core: reduce overhead and latency net: - set google's 'BBR' as the default TCP congestion algorithm to improve network performance - add 'westwood' TCP congestion algorithm for users who prefer it - use fq_codel by default freezer: - reduce freeze timeout to avoid draining battery unnecessarily governor: - make 'performance' the default CPU governor to improve boot performance - this will be reverted once boot completes anyway mm: - reduce swappiness to 35 since we have mlgru enabled to reduce aggressive swapping and reduce power consumption - disable watermark boosting as it's a mess, and hurts performance on low-memory devices - don't hog the CPU and zone lock in rmqueue_bulk to reduce system latency - lower the non-hugetlbpage pageblock size to reduce scheduling delays - micro-optimize PID maps - reduce measurable overhead cpuidle: - introduce teo util-awareness to reduce wakeup latency from deep-sleep and such - add timer to stop wi-fi from staying idle to reduce power consumption - prioritize 'teo' over 'menu' scheduler - minor optimizations f2fs: - force fsync for better data integrity and lower data corruption risk - reduce timeout for uncongestion to lower I/O latency - reduce GC thread urgent sleep time to 50ms to improve performance on unencrypted system - enlarge min_fsync_blocks to 20 to improve fsync performance - enable ATGC and GC_MERGE by default to improve efficiency of garbage collection rcu: - enable lazy-rcu by default to increase battery savings on idle or low system load - panic on RCU stall so we don't have to restart on deadlock manually - minor optimizations arm: - assign unbound workqueues to little CPU cluster by default to reduce power consumption - import new optimized strcmp from ARM (manufacturer) - disable legacy 16-bit calls support to reduce kernel image size anykernel3: - support sapphire/sapphiren compilation: - compile with clang -O3 optimizations for maximal performance debug: - binder: disable debugging and logging prints to reduce wasted cycles - arm64: disable self-hosted debug by default

This is a stable 5.15.148 release built with latest clang-19.0.0 (-O3 optimization)

Installation guide:

  1. Download the kernel zip below
  2. Reboot to recovery and install it
  3. Enjoy

What about KernelSU?

  • This kernel is not built with kernelsu, and i suggest using LKM (loadable kernel module) variant of KernelSU instead
  • And also so you can use magisk without any conflict, or unnecessarily having/loading two superuser managers

Credits

⚠️ Report any bugs and problems here

Please, if you Ctrl-C + Ctrl-V my kernel, at least provide some credit for my efforts

GitHub Releases SourceForge

Source: README.md, updated 2024-08-26