Performance-First Linux, Built on Arch
CachyOS ships every package optimized for your CPU - compiled with x86-64-v3/v4 and Zen4 instructions, LTO, and PGO - on top of a custom kernel with the tuned EEVDF scheduler. The result: a noticeably faster Arch Linux experience with the same rolling-release flexibility you expect.
Features
Why CachyOS Is Different
Most Linux distributions ship generic binaries. CachyOS rebuilds the stack — from kernel to packages — with modern CPU optimizations, delivering measurable performance where it matters.
CPU-Optimized Package Repository
Every package is compiled with x86-64-v3, x86-64-v4, and Zen4 instruction sets plus LTO. Core packages receive additional PGO and BOLT optimization — no manual rebuilds required.
Advanced Kernel with Scheduler Choice
The linux-cachyos kernel ships with with a tuned scheduler for responsive interactivity, plus options for BORE, sched-ext, BMQ, and RT. All kernel builds are CPU-optimized with x86-64-v3/v4, Zen4 and LTO.
Install Your Way
Two installers to match your workflow: a graphical Calamares-based installer for a guided setup, or a CLI installer for full control over every detail.
17+ Desktop Environments & Window Managers
Choose from KDE Plasma, GNOME, COSMIC, Hyprland, Sway, Niri, i3, XFCE, and more. Pick your preferred environment during installation — every option is fully supported out of the box.
Support CachyOS
CachyOS is an independent, community-driven project. Your financial support directly contributes to our infrastructure, development, and the continuous improvement of the operating system.
Infrastructure Costs
Keeping high-speed mirrors, build servers and website hosting operational involves recurring monthly costs.
Active Development
Donations allow our core team to spend more time optimizing the kernel, packaging software, and building new features.
Hardware Testing
Getting different hardware components helps us ensure CachyOS runs smoothly across many architectures and setups.
Ready to See the Difference?
Download CachyOS and experience what a performance-optimized Linux distribution feels like.
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