linux-xanmod

XanMod kernel build for Archlinux.

Modified to support (stable only):

• Architecture optimizations (does it matter? not enabled by default)
• Waydroid (PSI enabled by default)
• System76's scheduler (needs debug info to be enabled apparently)
• Other various patches

Run just --list for a list of the possibilities

Version

Official package

• Edge : 5.18.4-xanmod1

• Stable : 5.18.4-xanmod1

• LTS : 5.15.47-xanmod1

• TT (LTS) : 5.15.47-xanmod1-tt

Build

git clone https://github.com/blacksky3/linux-xanmod.git
cd linux-xanmod/{edge,stable,lts,tt-lts}
env_compiler=(1 or 2) makepkg -s

Build variables

_compiler

• Will set compiler to build the kernel :

    1 : GCC
    2 : CLANG+LLVM
  

If not set it will build with GCC by default.

Prebuild package

Prebuild package are available at https://repo.blacksky3.com/x86_64/kernel

You can add this repo to your pacman.conf

[kernel]
SigLevel = Optional TrustAll
Server = https://repo.blacksky3.com/$arch/$repo

CPU Scheduler

TT CPU Scheduler

Task Type (TT) is an alternative CPU Scheduler for linux.

The goal of the Task Type (TT) scheduler is to detect tasks types based on their behaviours and control the schedulling based on their types. There are 5 types:

1. REALTIME
2. INTERACTIVE
3. NO_TYPE
4. CPU_BOUND
5. BATCH

Find the descriptions and the detection rules in tasks.ods

The benefit of task types is to allow the scheduler to have more control and choose the best task to run next in the CPU.

TT gives RT tasks a -20 prio in vruntime calculations. This boosts RT tasks over other tasks. The preemption rules are purely HRRN where RT tasks have a priority since their vruntimes are relatively less than other types. The reason of using HRRN instead of hard level picking is to smooth out the preemtions and to prevent any chance of starvation.

Update GRUB

sudo grub-mkconfig -o /boot/grub/grub.cfg

Info

You can refer to this Archlinux page that have lots of useful information to build the kernel and debugging if you have some issues https://wiki.archlinux.org/index.php/Kernel/Traditional_compilation

Contact info

blacksky3@tuta.io if you have any problems or bugs report.

Donation

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