Description

Unofficial x86-64-v2 CachyOS Kernels

Meet CachyOS team!

linux-cachyos and linux-cachyos-lts use as default the BORE-EEVDF 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

Announcement 2024/06/16: Support for sched-ext schedulers has been added to the stable branch kernels. Installation instructions can be found on the addons repo page.

GCC-compiled kernels

The kernels in this repository are compiled with GCC. We have a seperate repo with Clang-compiled LTO kernels, which can be found here.

The Clang-compiled kernels give better performance, but may have issues with some kernel modules.

Features

• AMD PSTATE Preferred Core and enabled as default
• Latest BTRFS and XFS improvements & fixes.
• Latest & improved ZSTD 1.5.5 patch-set.
• UserKSM daemon from pf.
• Improved BFQ Scheduler.
• Back-ported patches from linux-next.
• BBRv3 tcp_congestion_control.
• Scheduler patches from linux-next/tip.
• General improved sysctl settings and upstream scheduler fixes.
• OpenRGB and ACS Override support.
• HDR Patches for AMD GPU's and gamescope.
• Default support for Steam Deck.
• Sched-ext scheduler support. Installation instructions can be found here.
• 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 default kernel. Otherwise you will end up with a non-functioning operating system! If it detects only x86_64_v2, you can use the LTS kernel.

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 SERVER

sudo dnf copr enable miaeldui/kernel-cachyos-v2

sudo dnf install kernel-cachyos-server kernel-cachyos-server-devel-matched

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
Fedora 42	x86_64 (6)*	Fedora 42 (6 downloads)
Fedora rawhide	x86_64 (0)*	Fedora rawhide (0 downloads)

* Total number of downloaded packages.