Linux 6.5-rc4 Brings Change For Enabling STIBP On AMD Zen 4 Auto IBRS Systems

Last weekend I wrote about Zen 4’s Automatic IBRS security feature needing STIBP enabled for protecting user-space processes. Single-Threaded Indirect Branch Predictors though haven’t been enabled up to now with the Auto IBRS functionality on Linux. But the x86/urgent pull request sent out today ahead of the Linux 6.5-rc4 tagging makes that change…

Source: Phoronix – Linux 6.5-rc4 Brings Change For Enabling STIBP On AMD Zen 4 Auto IBRS Systems

Intel Linux Driver Lands Workaround To Sharply Speedup Cyberpunk 2077 Shader Compilation

A new per-application workaround/optimization to the open-source Intel “ANV” Vulkan Linux driver has sharply reduced the time required for compiling Cyberpunk 2077 game shaders for this popular title running on Linux by way of Valve’s Steam Play…

Source: Phoronix – Intel Linux Driver Lands Workaround To Sharply Speedup Cyberpunk 2077 Shader Compilation

Linux 6.5-rc4 Fixes Support For Reporting Negative Temperatures On AMD Industrial CPUs

Going back to May I wrote about AMD’s “k10temp” Linux temperature driver being updated to handle negative temperature readings and now finally merged on Friday as a fix ahead of Linux 6.5-rc4 is a change to that open-source driver for properly displaying negative temperatures…

Source: Phoronix – Linux 6.5-rc4 Fixes Support For Reporting Negative Temperatures On AMD Industrial CPUs

KDE Plasma 6 Making Progress On Sound Themes, Lower Cursor Latency On Wayland

With most developers having recovered from the recent Akademy KDE developer conference, Plasma 6 is back to seeing a lot of new development activity for what will be the next major open-source desktop release likely debuting in early 2024…

Source: Phoronix – KDE Plasma 6 Making Progress On Sound Themes, Lower Cursor Latency On Wayland

Running The AMD EPYC 9754 "Bergamo" CPUs With A 320W cTDP To Enhance Power Efficiency

The new AMD EPYC Bergamo and Genoa-X processors have been very fascinating in the lab from the performance angle and the many different features and knobs provided by these new high-end server processors focused on dense cloud and energy-efficient deployments and HPC/AI, respectively. With Bergamo the flagship AMD EPYC 9754 provides 128 cores with SMT and the Zen 4C cores still boast AVX-512. Another nifty aspect on this high core count CPU catering to cloud service providers is the adjustable TDP from 320 to Watts. Prior Phoronix benchmarks have looked at the default 360 Watt performance and the 400W at the high-end with power determinism mode while today’s article is looking at the efficiency gains made possible by pulling back to a 320W cTDP.

Source: Phoronix – Running The AMD EPYC 9754 “Bergamo” CPUs With A 320W cTDP To Enhance Power Efficiency

Richard Hughes Developing New "Passim" Local Caching Server

Richard Hughes is the Red Hat developer who is most prominently known for leading the Linux Vendor Firmware Service (LVFS) and Fwupd development as well as formerly being behind the ColorHug monitor color calibration hardware effort and PackageKit, among other open-source software. He’s recently been developing a new software project called Passim that today he announced to the world…

Source: Phoronix – Richard Hughes Developing New “Passim” Local Caching Server