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 4 of 4. 5 Comments.

Altair's OpenRadioss software was showing some significant improvements for this 5th Gen AMD EPYC dual socket server when the workloads were run on Linux 6.19 Git compared to Linux 6.18 stable.

👁 OpenFOAM benchmark with settings of Input: drivaerFastback, Small Mesh Size, Mesh Time. Linux 6.19 12 Dec was the fastest.

👁 OpenFOAM benchmark with settings of Input: drivaerFastback, Small Mesh Size, Execution Time. Linux 6.19 12 Dec was the fastest.

The OpenFOAM computational fluid dynamics (CFD) software was showing some benefits too on Linux 6.19 Git.

👁 PostgreSQL benchmark with settings of Scaling Factor: 1000, Clients: 800, Mode: Read Write. Linux 6.19 12 Dec was the fastest.

👁 PostgreSQL benchmark with settings of Scaling Factor: 1000, Clients: 800, Mode: Read Write, Average Latency. Linux 6.19 12 Dec was the fastest.

👁 PostgreSQL benchmark with settings of Scaling Factor: 1000, Clients: 1000, Mode: Read Write. Linux 6.19 12 Dec was the fastest.

👁 PostgreSQL benchmark with settings of Scaling Factor: 1000, Clients: 1000, Mode: Read Write, Average Latency. Linux 6.19 12 Dec was the fastest.

The PostgreSQL 18 database server was showing some small gains on this AMD EPYC dual socket server under Linux 6.19 Git.

👁 ClickHouse benchmark with settings of 100M Rows Hits Dataset, First Run / Cold Cache. Linux 6.19 12 Dec was the fastest.

ClickHouse is looking good too on AMD EPYC.

👁 Blender benchmark with settings of Blend File: BMW27, Compute: CPU-Only. Linux 6.19 12 Dec was the fastest.

👁 Blender benchmark with settings of Blend File: Barbershop, Compute: CPU-Only. Linux 6.19 12 Dec was the fastest.

👁 OSPRay Studio benchmark with settings of Camera: 2, Resolution: 4K, Samples Per Pixel: 1, Renderer: Path Tracer, Acceleration: CPU. Linux 6.19 12 Dec was the fastest.

👁 OSPRay benchmark with settings of Benchmark: particle_volume/scivis/real_time. Linux 6.19 12 Dec was the fastest.

👁 OSPRay benchmark with settings of Benchmark: particle_volume/pathtracer/real_time. Linux 6.19 12 Dec was the fastest.

👁 SVT-AV1 benchmark with settings of Encoder Mode: Preset 13, Input: Bosphorus 4K. Linux 6.18 was the fastest.

👁 Kvazaar benchmark with settings of Video Input: Bosphorus 4K, Video Preset: Medium. Linux 6.18 was the fastest.

👁 Kvazaar benchmark with settings of Video Input: Bosphorus 4K, Video Preset: Very Fast. Linux 6.19 12 Dec was the fastest.

👁 Liquid-DSP benchmark with settings of Threads: 256, Buffer Length: 256, Filter Length: 512. Linux 6.19 12 Dec was the fastest.

For many applications the Linux 6.19 kernel upgrade did not equate to any substantive performance difference.

That's an initial look at Linux 6.19 on AMD EPYC 9965 2P flagship hardware. There are some nice wins in the HPC workloads while regressions around the kernel scheduler and code compilation performance are hopefully to be addressed over the weeks ahead in leading up to the early February stable debut of Linux 6.19. More Linux 6.19 kernel benchmarks coming up on Phoronix over the holidays.

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URL: https://www.phoronix.com/review/amd-epyc-9965-linux-619/4

⇱ 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