AvenorOS 1.1.0 gaming test 1 — Avenoros

Gaming test build for AvenorOS. This is a pre-release for benchmarking on real hardware. It is not a replacement for 1.0.0.

What's new

Low-latency CPU scheduler: scx_lavd (sched_ext) on the stock kernel
gamemode, which switches the CPU to performance while a game runs
amd-pstate in active mode
sysctl tuning for games (memory and scheduler settings)
zram compressed swap
Steam with Proton
NVIDIA and Radeon (Mesa) graphics drivers
MangoHud for frame-time logging
The /usr slot is now 4 GB (was 3 GB). The ISO is 5.56 GB.

Known limits

Idle RAM is about 1.1 GB in a VM, up from about 950 MB in 1.0.
Not tested on real hardware yet. amd-pstate could not be checked in the VM.
Steam starts, but its first launch was not seen finishing in testing.
No installer. Run it live from a USB stick.
The version string inside the image still says 0.3.2.

Download

The zip is over GitHub's 2 GiB file limit, so it is split into two parts. Download both, then join them:

Linux/macOS:

cat avenoros-1.1.0-gaming.1-x86_64.zip.001 avenoros-1.1.0-gaming.1-x86_64.zip.002 > avenoros-1.1.0-gaming.1-x86_64.zip

Windows (cmd):

copy /b avenoros-1.1.0-gaming.1-x86_64.zip.001 + avenoros-1.1.0-gaming.1-x86_64.zip.002 avenoros-1.1.0-gaming.1-x86_64.zip

Unzip it and write avenoros-0.3.2-x86_64.iso to a USB stick of 8 GB or more.

SHA-256

32678dd40c13586d615f23c1b8cab9f8a02616ecefeec5db9b9a1df79d7b394a  avenoros-1.1.0-gaming.1-x86_64.zip.001
ccd5160dab0826aaa52a7075b7b1f588bdfcfd8becace9866651d2908806e950  avenoros-1.1.0-gaming.1-x86_64.zip.002
e86a5daa5b0334d5076509cb5d1c2494f5a288823902cbfd6871df70e3b53dc0  avenoros-1.1.0-gaming.1-x86_64.zip
d7e6fd8c07b966205c8d02f9fc2d9e12342a0c5efeeb6c486c22a8cfc393109f  avenoros-0.3.2-x86_64.iso

BeamNG test

Run the same BeamNG.drive replay three times on Windows 11 and three times on AvenorOS, with the same settings and on the same GPU, then compare 1% and 0.1% lows with bench/beamng-lows. Full steps are in bench/README.md.