Phoronix has published a benchmark review examining the performance of the Liquorix kernel, derived from Linux 6.18, against the upstream Linux 6.18 LTS on an AMD Ryzen Threadripper workstation. The comparison highlights Liquorix's optimizations for enthusiast workloads like gaming and audio production. Tests were conducted on high-end hardware running a development version of Ubuntu.
The review, titled 'Linux 6.18 LTS vs. Liquorix Kernel On AMD Ryzen Threadripper Workstation Performance,' evaluates how Liquorix stacks up in terms of responsiveness and efficiency. Liquorix is a downstream variant of the Linux kernel, tailored for creators and enthusiasts. It incorporates specific tweaks such as Zen interactive tuning, the PDS process scheduler, and the Kyber I/O scheduler, which is applied even on NVMe storage systems. Unlike the standard kernel, Liquorix opts for ACPI CPUFreq over AMD P-State on Ryzen processors, along with various patches and configuration adjustments.
Details on these modifications and pre-built binaries for distributions like Ubuntu and Debian are available at Liquorix.net. For the benchmarks, Phoronix used a pre-built Liquorix 6.18 kernel and compared it to the upstream Linux 6.18 LTS from the Ubuntu Mainline Kernel PPA. The test system features the AMD Ryzen Threadripper PRO 9995WX processor, AMD Radeon AI PRO R9700 graphics card, 128GB of DDR5-6400 memory, and runs on an Ubuntu 26.04 development snapshot, modified only for the kernel variations.
This analysis comes at the start of 2026, aiming to assess Liquorix's advantages in scenarios beyond default upstream performance, particularly for demanding tasks in gaming, audio/video production, and other interactive workloads. The review provides insights into how these kernel differences play out on flagship AMD hardware, offering valuable data for Linux users seeking optimized setups.