CachyOS Performance Checklist for True PerformanceHeads

CachyOS already includes a lot of performance optimizations by default. They will not be included here apart from the purpose of clarification or exception relating to hardware or software combination.

Packages

• Package repository for your specific generic architecture (x86_64-v3, x86_64-v4, znver4, etc)

Kernel

• Custom schedulers
  • BORE+EEVDF (best idle performer - normal computer usage without background load)
  • scx_lavd (topology unaware, works with most Intel CPUs, accordingly won't work well with CPUs that have 2 CCX such as the 7950X)
  • scx_bpfland (best for non-gaming related workloads, unparalleled responsiveness under stress)

Compilation options (most of these are already defaults)

• Full tickless
• 1000HZ running tick rate
• Full preempt
• Native AMD/Intel compiler optimizations
• O3 level compiler optimizations
• Transparent Hugepages

Graphics

• Replace mesa package with mesa-git [Source-1]

Filesystem

• BTRFS (at zstd:3 compression)[Source-1]
• XFS

CPU

• Performance CPU governor
• Disable security mitigations (mitigations=off) depending on your CPU [Source-1 Source-2 Source-3]

AMD

• amd_pstate=active if >= Zen2 (enabled by default)

BIOS

• RAM timings (AMD EXPO, Intel XMP)
• Undervolting

Programs

• Discord -> OpenAsar, Vesktop
• Firefox -> Cachy Browser

Gaming

• Proton GE
• Use X11 instead of Wayland for now because of performance regressions yet to be resolved (TIMESTAMP: 2024-04-22) [Source-1] Fixed for the most part, with some caveats.