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AMD EPYC Achieves Performance Leadership In New OCUDU Project For 5G/6G RAN

Announced this week at Mobile World Congress (MWC) by the Linux Foundation was the establishing of the OCUDU Ecosystem Foundation for advancing open-source AI-RAN (Radio Access Network) innovations. OCUDU is building a reference platform and innovations around 5G and early 6G network solutions. With OCUDU being benchmark-friendly, I have been putting the early code through some performance tests on current AMD EPYC and Intel Xeon server platforms.
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systemd 260-rc2 Released With More Changes

Last week marked the release of systemd 260-rc1 with a new "mstack" feature, a new "FANCY_NAME" field for os-release, dropping System V service script support, and other changes. Out today is systemd 260-rc2 release with more changes in further working its way toward a stable release for empowering 2026 Linux distributions...
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Ubuntu Still Figuring Out A Plan For Dealing With California's Digital Age Assurance Act

The talk this week among open-source projects from Linux distributions to app stores like Flathub is how to deal with California's latest insanity: the Digital Age Assurance Act. California's AB 1043 state law is mandating that operating systems -- Linux included -- collect age information during account setup and exposing that age to eligible apps beginning on 1 January 2027. That leaves much uncertainty for Linux distributions and other repositories/stores and more. Canonical issued a statement today to clarify that they basically don't have a solution to announce yet...
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AMD DPTCi Driver Posted For Linux To Better Enhance Ryzen Gaming Handhelds

A request for comments (RFC) patch series was posted today to the Linux kernel mailing list to introduce the AMD Dynamic Power and Thermal Configuration Interface "DPTCi" driver. With this driver it would provide better upstream Linux kernel support for tuning the power / performance / thermals of modern Ryzen-powered gaming handheld devices. Though don't get too excited right away as the driver was assembled in part by AI that is already causing a bit of a ruckus on the LKML due to lack of disclosure...
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Intel Rendering Toolkit & OpenVINO AI GPU Performance On Intel Panther Lake's Xe3 B390

Over the past month I have been running a lot of Linux benchmarks on Intel's new Panther Lake using the Core Ultra X7 358H and its Xe3-based Arc B390 Graphics. The Arc B390 on Linux has been quite interesting with its OpenGL and Vulkan graphics performance compared to prior generations of Intel graphics plus the Intel Compute Runtime / OpenCL performance too. In today's article are more benchmarks of the latter in looking at the Intel Rendering Toolkit and OpenVINO AI performance on the Xe3 B390 Panther Lake graphics compared to prior Lunar Lake and Meteor Lake.
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Intel Adapting Linux's LAM In Preparing For ChkTag

Last year AMD and Intel as part of the x86 Ecosystem Advisory Group announced ChkTag for x86 memory tagging across processors to better fight buffer overflows and use-after-free errors. In preparing for ChkTag with future processors, Intel has begun adapting their Linear Address Masking (LAM) support to more nicely jive with it...
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ARCTIC Cooling Publishes ARCTIC Fan Controller Driver For Linux

A Linux driver has been published for the ARCTIC Fan Controller to be able to read fan speeds under Linux as well as setting the PWM fan speed for each of the ten fans supported by this controller. Making this driver all the more exciting is that ARCTIC Cooling is directly working on this driver rather than just being a community/third-party creation. Furthermore, ARCTIC Cooling is working on getting this driver to the upstream Linux kernel...
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AMD EPYC Turin 128 Core Comparison: EPYC 9745 "Zen 5C" vs. EPYC 9755 "Zen 5"

The AMD EPYC 9755 128-core Zen 5 server processor has been benchmarked a lot at Phoronix since the EPYC 9005 "Turin" launch as their top-end Zen 5 server processor with "full fat" cores compared to the denser Zen 5C cores that extend up to the EPYC 9965 at 192 cores. For those eyeing the 128 core per socket sweet spot, there is also the EPYC 9745 that is made up of 128 Zen 5C cores that allows for a 400 Watt TDP compared to the 500 Watt EPYC 9755. Today's benchmarking is comparing the EPYC 9745 and EPYC 9755 performance and power difference.
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Linux 7.0 Shows Off Nice Performance Gains For Databases In Small AMD EPYC Servers

Last week with my ongoing testing of the in-development Linux 7.0 kernel I found nice performance improvements for PostgreSQL and other workloads when testing on a 128-core AMD EPYC 9755 "Turin" server. Curious if those wins were due to optimizations focused on better scalability with today's "big" servers, I also ran some comparison Linux 7.0 benchmarks on the smaller AMD EPYC 4005 class servers too. Some nice wins carried over...
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