Early Linux 6.19 Benchmarks On AMD EPYC 9965 2P Excelling For AI & HPC Performance

Written by Michael Larabel in Software on 14 December 2025 at 03:26 PM EST. Page 2 of 4. 5 Comments.

👁 Timed Node.js Compilation benchmark with settings of Time To Compile. Linux 6.18 was the fastest.

👁 Timed Linux Kernel Compilation benchmark with settings of Build: allmodconfig. Linux 6.18 was the fastest.

With the Linux 6.19 scheduler regressions noted and bisected a few days ago on Phoronix, there were code compilation performance regressions spotted. Unfortunately, this is still present with Linux 6.19-rc1 and also was reproduced on this AMD EPYC 9965 2P flagship server. Build times were coming in slower when running on Linux 6.19 compared to Linux 6.18. At least for some workloads the difference was small and will hopefully be ironed out ahead of the Linux 6.19 stable release in February.

👁 oneDNN benchmark with settings of Harness: Deconvolution Batch shapes_1d, Engine: CPU. Linux 6.19 12 Dec was the fastest.

👁 Llama.cpp benchmark with settings of Backend: CPU BLAS, Model: Llama-3.1-Tulu-3-8B-Q8_0, Test: Prompt Processing 2048. Linux 6.19 12 Dec was the fastest.

👁 Llama.cpp benchmark with settings of Backend: CPU BLAS, Model: Mistral-7B-Instruct-v0.3-Q8_0, Test: Prompt Processing 2048. Linux 6.19 12 Dec was the fastest.

👁 Llama.cpp benchmark with settings of Backend: CPU BLAS, Model: Qwen3-8B-Q8_0, Test: Prompt Processing 512. Linux 6.19 12 Dec was the fastest.

👁 Llama.cpp benchmark with settings of Backend: CPU BLAS, Model: Qwen3-8B-Q8_0, Test: Prompt Processing 2048. Linux 6.19 12 Dec was the fastest.

When turning to more of the AI and HPC workloads on this dual AMD EPYC 9965 server, the results were looking positive for this next version of the Linux kernel.

👁 RELION benchmark with settings of Test: Basic, Device: CPU. Linux 6.19 12 Dec was the fastest.

In fact, some nice wins on Linux 6.19 Git for this AMD EPYC 9965 2P server compared to Linux 6.18.

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URL: https://www.phoronix.com/review/amd-epyc-9965-linux-619/2

⇱ Early Linux 6.19 Benchmarks On AMD EPYC 9965 2P Excelling For AI & HPC Performance - Phoronix

Early Linux 6.19 Benchmarks On AMD EPYC 9965 2P Excelling For AI & HPC Performance