CachyOS

CachyOS ships improved kernels that improve performance and other aspects.

The Schedulers listed below are supported:

We provided all of these schedulers because each scheduler performs differently and depends on usage. Please test it and choose what suits your requirements.

• BORE (Burst-Oriented Response Enhancer) CPU Scheduler by firelzrd (BORE)
  • linux-cachyos - Default kernel and we decided to ship BORE by default, but the scheduler could be changed in the future.
  • linux-cachyos-bore - If we decide to change the scheduler in the future, we still want to provide BORE.
• Task Type Scheduler by Hamad Marri (TT) - linux-cachyos-tt / linux-tt
• BitMap Queue (BMQ) Alfred Chen Scheduler - linux-cachyos-bmq
• Priority and Deadline based Skiplist multiple queue scheduler (PDS) - Alfred Chen Scheduler » linux-cachyos-pds
• CacULE and CacULE-RDB created from Hamad Marri, maintained by CachyOS - linux-cachyos-cacule
• Standard Scheduler Completely Fair Scheduler (CFS) - linux-cachyos-cfs

All kernels are prebuilt in two different march versions (x86-64 and x86-64-v3) and also with the LTO-enabled kernels in the cachyos repositories.

• Very customizable PKGBUILD with many features and improvements.
• 5 Different scheduler are supported, CacULE-,CFS-,tt-,bmq-,bore-, and pds scheduler
• GCC/CLANG Optimization with automatically found CPU arch or also selectable CPU architecture.
• Choose between LLVM/LTO or GCC.
• Choose between 300Hz, 500Hz, 600 Hz ,750Hz and 1000Hz # default 750 Hz.
• Improved BFQ Scheduler.
• Back-ported patches from linux-next.
• General improved sysctl settings and upstream scheduler fixes.
• Latest LRU (v15) Patch-set, default enabled.
• Maple Tree from linux-next.
• MM Demotion from linux-next.
• Latency Nice Patchset included usuage with ananicy-cpp feature branch.
• NEST Scheduler.
• rcu fixes and improvements.
• latest DAMON improvements and fixes.
• BBRv2 tcp_congestion_control.
• LLVM THIN-LTO Kernels prebuilt in x86-64-v3 and x86-64 in the CachyOS repositories.
• LRNG Framework. (default enabled)
• Latest & improved ZSTD patch-set.
• Latest BTRFS/XFS/EXT4 improvements & fixes.
• KSMBD Module for Samba3 Server.
• AMD PSTATE EPP Driver enabled by default and with enhancements patches/fixes.
• Clearlinux Patchset.
• Kernel Control Flow Integrity (kCFI) selectable when using LLVM. (patched llvm can be found in the cachyos-repositories)
• ZFS Filesystem Support and prebuilt in the repository.
• WINESYNC Fastsync.
• Use entropy optimization for zRAM.
• UserKSM daemon from pf.
• support for bcachefs.

• Complete patch for simple patching on the kernel
• It is planned to implement into our kernel builder from cachyos buildsystem, which works also on other distributions.

Its a community maintained ebuild from a user, which can be used for a dynamic building right here

Or simply run:

eselect repository enable ROKO__
emaint sync -r ROKO__

How to add our repositories automatically with compatibility detection (if x86-64-v3 is supported) is described below:

Run following commands:

1. Get archive with script

wget https://mirror.cachyos.org/cachyos-repo.tar.xz

If don't have wget, install them by sudo pacman -S wget

2. Extract and jump into the archive

tar xvf cachyos-repo.tar.xz && cd cachyos-repo

3. Run script under sudo

sudo ./cachyos-repo.sh

The script performs automatic march detection and changes the pacman.conf

1. Add key

sudo pacman-key --recv-keys F3B607488DB35A47 --keyserver keyserver.ubuntu.com

2. Add key

sudo pacman-key --lsign-key F3B607488DB35A47

3. You can download first initial packages

sudo pacman -U 'https://mirror.cachyos.org/repo/x86_64/cachyos/cachyos-keyring-2-1-any.pkg.tar.zst' 'https://mirror.cachyos.org/repo/x86_64/cachyos/cachyos-mirrorlist-13-1-any.pkg.tar.zst' 'https://mirror.cachyos.org/repo/x86_64/cachyos/cachyos-v3-mirrorlist-13-1-any.pkg.tar.zst' 'https://mirror.cachyos.org/repo/x86_64/cachyos/pacman-6.0.2-7-x86_64.pkg.tar.zst'

1. Check support by the following the command

/lib/ld-linux-x86-64.so.2 --help | grep "x86-64-v3 (supported, searched)"

add following under the arch repos the "-v3" repos only if they are supported:

# cachyos repos
## Only add if your CPU does v3 architecture
[cachyos-v3]
Include = /etc/pacman.d/cachyos-v3-mirrorlist
[cachyos]
Include = /etc/pacman.d/cachyos-mirrorlist

This script will also backup your old pacman.conf. This script will auto-detect you architecture, if your CPU have x86-64-v3 support, it will automatically use the repos which are optimized with this flag > and some other flags. Also all provided Kernels, Browsers, ... are optimized and compiled.

• Remove or Backup the config located at /etc/pacman.conf
• then run sudo mv /etc/pacman.conf.bak /etc/pacman.conf
• Then run following command to switch the packages to the default arch packages sudo pacman -Suuy

More information's you will find here CachyOS or Discord

Not needed anymore, just install the latest dkms version from our repo.

Discord: https://discord.gg/qJqj94uFwE
Telegram: https://t.me/+zCzPX4cAFjk1MTYy

PayPal: https://paypal.me/pttrr
Patreon: https://www.patreon.com/CachyOS

BTC: bc1qmwglfchlc335du6pcu6w64cexu7cck0mzhyw42
ETH: 0xc2dc77327F78A7B85Db3941Eb49e74F41E961649

Hamad Marri for the CacULE and TT Scheduler
Archlinux for the great linux operating system
And all other Kernel Developers and Supporters