Phoronix

Nearly one year ago Intel published the X86S specification (formerly stylized as "X86-S") for simplifying the Intel architecture by removing support for 16-bit and 32-bit operating systems. X86S is a big step forward with dropping legacy mode, 5-level paging improvements, and other modernization improvements for x86_64. With the Linux 6.9 kernel more x86S bits are in place for this ongoing effort...

A "request for comments" patch series was posted on Monday for a new dynamic kernel stacks feature for Linux. Early testing has shown the potential for significant memory savings...

After two years of talking about Intel FRED as Flexible Return and Event Delivery for overhauling how transitions are done between privilege levels (CPU rings), the support code was finally in good shape for merging now with the Linux 6.9 kernel...

This is their LLVM/Clang-based shader compiler for compiling HLSL programs into the DirectX Intermediate Language (DXIL) that can then be fed to DirectX GPU drivers from the different vendors. While Microsoft Windows is obviously the main focus, today's update does improve the Linux build support...

SUSE's David Sterba sent out the Btrfs updates today for the Linux 6.9 merge window. Besides stabilization and bug fixes there are also some minor performance optimizations to see with this next kernel...

The in-development Linux 6.9 kernel is finally landing support for AMD Preferred Core as part of the power management updates for this mid-2024 kernel release...

Intel this morning released Continuous Profiler as open-source, a software solution developed by Intel Granulate for aiming to help boost CPU performance...

GNU Linux-libre 6.8-gnu is out as the newest downstream kernel variety endorsed by the Free Software Foundation that takes the upstream Linux kernel but does away with proprietary module support and stripping out drivers/functionality contingent upon binary-only microcode/firmware and other elements not deemed up to their free software standards...

The Ubuntu 24.04 LTS release next month will roll out initial support in its server installer for being able to handle root file-system setups on NVMe-over-TCP scenarios for remote drives...

The x86/core changes were submitted today for the now-open Linux 6.9 merge window. Among other changes, the x86 CPU security mitigation options within the Linux kernel Kconfig have been adjusted where appropriate to make more clear the options/features are for security mitigations...

While Linux 6.8 carries some elements of Zen 5 CPU support, more upstream Linux enablement for the next-generation AMD processors remains ongoing. Sent out this morning were the initial patches around AMD Zen 5 performance monitoring and events for the perf subsystem...

Igalia continues maintaining the Broadcom V3D open-source graphics driver code that is used by the Raspberry Pi single board computers. With a new patch series posted today for the V3D DRM driver, support for Super Pages is enabled to help with enhancing the graphics performance. In many benchmarks having Super Pages can enhance the performance by a few percent but in some extreme cases can be 19~42% faster...

A number of x86-related pull requests were already submitted today for kicking off the new Linux 6.9 merge window. With the x86/cpu pull for this new kernel cycle there is just one patch and it's for slightly easing future AMD Zen processor enablement under Linux...

Linus Torvalds has gone ahead and released Linux 6.8 as stable today rather than drawing this cycle into overtime...

Depending upon how Linus Torvalds is feeling today, Linux 6.8 could debut today as stable and in turn mark the opening of the Linux 6.9 merge window... Otherwise it will be punted off by one week. In any event, there's a lot of interesting work queuing for Linux 6.9 as shared in today's preview...

The AMD P-State CPU frequency scaling driver works with Zen 2 and newer processors supporting ACPI Collaborative Processor Performance Controls (CPPC) but to date this hasn't worked for Threadripper 3000 series processors with the TRX40 chipset. That though is finally being fixed up with Linux 6.9 thanks to a one-line code change...

Thanks to the nature of open-source and AMD making their Radeon Memory Visualizer "RMV" open-source under the GPUOpen umbrella, outside of AMD graphics drivers it's found usage elsewhere. Back in January I wrote how Intel's open-source Vulkan driver was adapted for being able to interface with the Radeon Memory Visualizer. Now this week the Qualcomm Adreno "TURNIP" Vulkan driver has also been wired up for enabling RMV integration...

Niri is an interesting scrollable tiling Wayland compositor inspired by PaperWM that has been gaining user interest in recent months. This weekend marked the v0.1.3 release of this Wayland compositor...

All of the Rust feature patches have already been submitted in a pull request to Linus Torvalds ahead of the upcoming Linux 6.9 merge window...

Last year saw a lot of code clean-up work on the Linux kernel and working to remove support for obsolete hardware no longer being actively maintained within the mainline kernel tree for years. On the CPU side one of the efforts has been to remove unused SPARC 32-bit CPU support for old Sun workstations. The patches for removing unused SPARC32 code was updated this weekend and now undergoing review...