Description

Official port linux-cachyos-bore and linux-cachyos-bore-lto for Fedora

Meet CachyOS team!

linux-cachyos-bore and linux-cachyos-bore-lto uses as default the EEVDF-BORE scheduler

• BORE - (Burst-Oriented Response Enhancer) CPU Scheduler by firelzrd (BORE)
• EEVDF - (Earliest Eligiable Virtual Deadline) First EEVDF is a replacement for the CFS Scheduler from Peter Zijlstra

Features

• Choose between LLVM/LTO or GCC.
• Improved BFQ Scheduler.
• Back-ported patches from linux-next.
• MEMCG MG LRU Patchset.
• Latency Nice Patchset included usuage with ananicy-cpp feature branch.
• Scheduler patches from linux-next/tip.
• RCU fixes and improvements.
• printk patches.
• BBRv2 tcp_congestion_control.
• Latest & improved ZSTD 1.5.5 patch-set.
• Latest BTRFS/XFS/EXT4 improvements & fixes.
• AMD PSTATE EPP Driver enabled by default and with enhancements patches/fixes.
• Clearlinux Patchset.
• Futex fixes and winesync is available.
• OpenRGB and ACS Override support.
• HDR Patches for AMD GPU's and gamescope.
• KVM Performance Improvement from Yu Zhao.
• Objtool Patches to reduce the memory usage.
• Default support for Steam Deck.
• UserKSM daemon from pf.
• per VMA lock.
• Lenovo Legion Patchset.
• Surface Patches.
• GPLv2 license.
• GitHub copr-linux-cachyos.

Checking for the cpu support

Check support by the following the command

/lib64/ld-linux-x86-64.so.2 --help | grep "(supported, searched)"

If it does not detect x86_64_v3 support do not install the kernel. Otherwise you will end up with a non-functioning operating system!

SElinux and cachyos kernel

sudo setsebool -P domain_kernel_load_modules on

If you are using SElinux. Enable the above policy to load kernel modules.

Installation Instructions

FEDORA WORKSTATION

sudo dnf copr enable bieszczaders/kernel-cachyos

sudo dnf install kernel-cachyos-bore

OR

If you build external modules (e.g. for Nvidia graphics card drivers) and use the -lto kernel, you need to install the following dependencies:

sudo dnf install clang clang-devel llvm lld

sudo dnf install kernel-cachyos-bore-lto

FEDORA SILVERBLUE

cd /etc/yum.repos.d/

sudo wget https://copr.fedorainfracloud.org/coprs/bieszczaders/kernel-cachyos/repo/fedora-$(rpm -E %fedora)/bieszczaders-kernel-cachyos-fedora-$(rpm -E %fedora).repo

sudo rpm-ostree override remove kernel kernel-core kernel-modules kernel-modules-core kernel-modules-extra --install kernel-cachyos-bore

sudo systemctl reboot

OR

If you build external modules (e.g. for Nvidia graphics card drivers) and use the -lto kernel, you need to install the following dependencies:

sudo rpm-ostree install clang clang-devel llvm lld

sudo rpm-ostree override remove kernel kernel-core kernel-modules kernel-modules-core kernel-modules-extra --install kernel-cachyos-bore-lto

sudo systemctl reboot

OPTIONAL (HIGHLY RECOMMENDED) FOR BETTER PERFORMANCE

Install UKSMD.

Active Releases

The following unofficial repositories are provided as-is by owner of this project. Contact the owner directly for bugs or issues (IE: not bugzilla).

Release	Architectures	Repo Download
Centos-stream 9	x86_64 (36)*	Centos-stream 9 (9 downloads)
EPEL 9	x86_64 (137)*	EPEL 9 (14 downloads)
Fedora 37	x86_64 (11948)*	Fedora 37 (568 downloads)
Fedora 38	x86_64 (8841)*	Fedora 38 (756 downloads)
Fedora rawhide	x86_64 (343)*	Fedora rawhide (130 downloads)

* Total number of packages downloaded in the last seven days.