Ubuntu 25.04 Boosting AMD EPYC 9005 Performance Even Higher: ~14% Faster Than Ubuntu 24.04 LTS
If comparing side-by-side the common state of Ubuntu 24.04 LTS with the hardware enablement stack (Linux 6.11, same as Ubuntu 24.10) against Ubuntu 25.04 beta, here's the breakdown:
With Ubuntu 25.04 there were some very significant gains to find with Ubuntu 25.04 for high performance computing (HPC) workloads like OpenFOAM CFD and Altair's OpenRadioss. Within a number of OpenJDK Java workloads was better performance too even with OpenJDK Java 21 being the major version used across the Ubuntu releases. There were also some very nice gains to find with Ubuntu 25.04 thanks to Python 3.13 by default. For those on older kernels like the non-HWE Ubuntu 24.04 LTS environment, moving to the newer kernel also spells big improvements for AES-XTS kernel crypto performance. The default switch with the AMD EPYC 9005 series from ACPI CPUFreq to the AMD P-State CPU frequency scaling driver help with some workloads too.
When taking the geometric mean of 90 benchmarks run across the tested Ubuntu Linux releases, Ubuntu 25.04 beta was 8% faster than Ubuntu 24.10 from just six months ago. This was a very nice improvement over Ubuntu 24.10 considering GCC 14.2 is still the default compiler and AMD EPYC Turin was already running well on Ubuntu 24.04/24.10, especially compared to the Intel Xeon 6 competition. Compared to Ubuntu 24.04 LTS on Linux 6.8 as it shipped last April, the same AMD EPYC 9755 hardware on Ubuntu 25.04 is 14% faster. For AMD in effect it's just icing on the cake at this point with the strong AMD EPYC 9005 series performance already with Ubuntu 24.04/24.10 over Intel Xeon 6700/6900 processors (sans select AI / AMX workloads or very memory intensive with MRDIMM advantage) as well as for much stronger performance over Ampere Altra / AmpereOne.
Ubuntu 25.04 is performing great on AMD EPYC Turin as shown by these EPYC 9755 2P server benchmarks. More benchmarks of other AMD EPYC 9005 servers on Ubuntu 25.04 as well as older AMD EPYC and then the Intel Xeon and Ampere Altra competition will be coming up on Phoronix too this month for showing off the latest Ubuntu Linux state on these server platforms. Even if you're not going to deploy Ubuntu 25.04 due to its non-LTS state, these metrics are interesting for seeing what further software potential is on the table as well as now being at the halfway point until Ubuntu 26.04 LTS.
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