Arch Linux performance

• This guide contains Arch Linux tweaks focused on performance and is fully ready for gaming. Guide uses existing tweaks from CachyOS.

Performance optimized repositories x86-64-v3 and additional packages

wget https://mirror.cachyos.org/cachyos-repo.tar.xz
tar xvf cachyos-repo.tar.xz
cd cachyos-repo
sudo ./cachyos-repo.sh

Download performance optimized packages

sudo pacman -Syu

Adding tweaks

Tweaks is provided by cachyos-settings

sudo pacman -S --needed cachyos-settings linux-cachyos linux-cachyos-headers

Note: You need linux-cachyos kernel, because of uksmd - I tested all stuffs with linux-cachyos, if you want to use another kernel, it should include feature uksmd.

• I didn't test another kernel, so it's up to you. My last word, I only tried with linux-cachyos.

Package cachyos-settings contains following tweaks:

Irqbalance

Irqbalance is a daemon to help balance the cpu load generated by interrupts across all of a systems cpus. Irqbalance identifies the highest volume interrupt sources, and isolates each of them to a single unique cpu, so that load is spread as much as possible over an entire processor set, while minimizing cache miss rates for irq handlers.

Ananicy Cpp

Ananicy (ANother Auto NICe daemon) — is a shell daemon created to manage processes' IO and CPU priorities, with community-driven set of rules for popular applications (anyone may add their own rule via github's pull request mechanism). It's mainly for desktop usage.

• cachyos-settings also provide own rules

uksmd - Userspace KSM helper daemon

The daemon goes through the list of userspace tasks (once per 5 seconds) and hints them to apply MADV_MERGEABLE to anonymous mappings for ksmd kthread to merge memory pages with the same content. Only long-living tasks are hinted (those that were launched more than 10 seconds ago).

System configs tweaks

These tweaks bring minor performance improvements, but it's still notable.

/etc/security/limits.d

• audio - realtime & audio adjustments.
• esync - Stability improvements.

/etc/sysctl.d/

• performance - kernel and network.
• security - kernel and network.

etc/systemd/

• ZRAM - performance, especially under heavy load on the RAM.

etc/udev/rules.d/

• AMD GPU - performance
• sata disc - performance
• Tuning I/O scheduler - performance
• HDD - performance

Reboot the system after installation.

• Enjoy faster Arch Linux and smooth gaming!