Phoronix

While not as exciting as features like HDMI 2.1 FRL and Display Stream Compression itself, as part of AMD's efforts to provide a fully open-source HDMI 2.1 driver implementation for AMDGPU, new code is being prepped for their kernel driver to support the HDMI compliance testing efforts...

Among the Kernel-based Virtual Machine (KVM) work being queued ahead of the upcoming Linux 7.2 merge window are preparations for supporting Advanced Performance Extensions within KVM virtual machines...

Initially introduced in RDNA3 (GFX11) GPUs is INST_PREF_SIZE to specify the number of instruction bytes to prefetch prior to a wavefront beginning execution. The Mesa Radeon Vulkan driver "RADV" is now making use of this feature in RDNA3/RDNA4 GPUs for better instruction cache prefetching...

Made public today is CVE-2025-10263 as a "critical" security vulnerability affecting many different Arm CPU cores. CVE-2025-10263 could allow for privilege escalation on affected systems due to a specific timing condition during a memory permission change. Fundamentally it comes down to completion of affected memory accesses might not be guaranteed by the completion of a TLBI...

Alpine Linux, the Linux distribution popular especially for containers / micro-services and embedded devices, is out with its newest feature release...

Asahi Linux is warning its users from trying out the new macOS 27 "Golden Gate" beta released this week by Apple. With macOS 27 beta, the Asahi Linux partition is no longer visible and thus unable to boot to your Apple Silicon Linux installation...

Recently I published some initial SpacemiT K3 benchmarks for that first-to-market RISC-V RVA23 SoC with the K3 Pico-ITX mini computer. In there was a comparison against modern Intel Core Ultra and AMD Ryzen desktop CPUs along with the likes of the Raspberry Pi 5, Loongson 3B6000, and SiFive HiFive Premier. For those curious about the longer-term RISC-V performance, here is a look at how far the RISC-V hardware performance has come compared to the SiFive HiFive Unmatched RISC-V board from five years ago.

In addition to Redox OS continuing to evolve quite nicely for that from-scratch, Rust-based open-source OS, Asterinas OS is also continuing to move forward for that Rust-based operating system striving for Linux compatibility...

Following the recent Hygon C86-4G CPU support added to the GCC 17 compiler, the open-source LLVM Clang compiler has similarly seen Hygon c86-4g-m4 / c86-4g-m6 / c86-4g-m7 CPU support merged...

Going back to the launch of 1st Gen Xeon Scalable processors in 2017 was Intel Key Protection Technology (KPT) promoted and there have been Key Protection Technology references in QuickAssist (QAT) documentation since 2016. Surprisingly we are only now seeing Key Protection Technology references for the upstream Linux QAT driver as Intel engineers prepare for their next-gen "Gen6" QuickAssist hardware support...

Pragtical, the lightweight open-source code editor that prides itself on using just ~50MB of RAM and ~10MB of disk space while being a full-featured code editor, is tacking on more features. Most notable with the new Pragtical release is adding an SDL-based GPU back-end for this MIT-licensed editor...

The open-source developers at Georgia Tech working on Vortex as an OpenCL-compatible RISC-V GPGPU implementation are out with their next major release for this open-source GPU design...

Back in March, Martin Wimpress stepped down as the longtime Ubuntu MATE leader and was looking for contributors to keep this Ubuntu derivative going with its GNOME2-derived desktop. That change in leadership paired with no Ubuntu MATE 26.04 release having occurred led to some concerns among users, but the plan is still for Ubuntu MATE to continue moving forward...

Following the official Fedora 44 images released one month ago, Fedora 44 RISC-V images were published today for those wanting to run this newest Fedora Linux on RISC-V hardware...

Linux's ufshcd-pci as the Universal Flash Storage host controller PCI driver has supported a variety of Intel devices to this point while for Linux 7.2 the first AMD device is set to be added...

Last week I ran benchmarks of CachyOS with the BORE scheduler using its "linux-cachyos-bore" kernel option. The results didn't end up being as enticing as anticipated but the developer behind the BORE scheduler commented in the forums that he recently received reports from users experiencing game stuttering while using BORE that was attributed to CachyOS' default use of Ananicy-Cpp. So over the weekend I did another CachyOS BORE run without that CachyOS default...

Recent testing of the Intel Arc B580 Battlemage desktop graphics card has shown that the upcoming Linux 7.1 kernel release is delivering superior graphics performance over the current stable Linux 7.0 kernel.

The belated "This Month in Redox" was posted today for covering improvements made to this open-source, Rust-based operating system during the month of May. Most notable in May is seeing the Xfce desktop ported over to Redox OS...

Canonical engineers are again evaluating the impact of building the Ubuntu Linux archive for the x86-64-v3 "amd64v3" micro-architecture feature level for its performance benefits on modern Intel and AMD systems. An amd64v3 archive is available of Ubuntu 26.10 for testing with the packages targeting this level that allows for AVX/AVX2 and other newer CPU x86_64 ISA capabilities of the past decade...

Ahead of NVIDIA Vera ramping up, the upcoming Linux 7.2 kernel is adding the ACPI CPPC v4 support authored by a NVIDIA engineer...

Flatpak 1.18 is out today for providing the latest improvements to this leading open-source app sandboxing and distribution tech...

An interesting quandary has arose on the Linux kernel mailing list over maintainership of old, unmaintained code within the Linux kernel. Someone has stepped up to maintain an old, very rare file-system driver but admittedly doesn't even use it and just submitted basic fixes. Or is it just better removing that old code?..

As the discussions continue among developers over potentially branching off some of the older Mesa drivers, the AMD R600 Gallium3D driver saw 59 commits on Sunday to Mesa 26.2. Making this code restructuring and code cleaning all the more notable is that the improvements to this old AMD Radeon graphics driver was done in part by GitHub Copilot...

As a friendly reminder, if you wanted to join Phoronix Premium at a discounted rate to show your support for the 22nd birthday of Phoronix.com during these difficult times in the web publishing space, that special is ending later today...

In addition to the SpacemiT K1 and K3 RISC-V SoC Device Tree updates sent out last week, the RISC-V T-HEAD Device Tree "DT" changes were also sent out last week ahead of the upcoming Linux 7.2 kernel merge window...

Last week Linux 7.1-rc6 was larger than Linus Torvalds wished for and for Linux 7.1-rc7 it has come in still heavier than typically seen this late in the cycle, but is shrinking and making Linus comfortable in hopefully releasing Linux 7.1 stable next Sunday...

As an exciting development for GPU-accelerated video decoding within the Mozilla Firefox web browser, initial support for Vulkan Video has landed in the web browser!..

Simon Ser just published Wayland Protocols 1.49 as the latest version for this primary set of Wayland protocol definitions...

A month ago I wrote about Linux scheduler work to help boost gaming performance on old "potato" hardware with Intel engineer Peter Zijlstra noting that Linux cgroup scheduling has continued to be "a pain in the arse." This work continues advancing with a third iteration of these "flatten the pick" patches being posted...

The VK_GOOGLE_display_timing extension for obtaining display timing information that can be useful for frame-pacing and eliminating micro-stuttering in games now has direct display mode support with KHR_display for the Mesa Vulkan drivers. This now merged addition immediately benefits the Intel ANV and Radeon RADV drivers as well as the PowerVR, Turnip, and V3DV drivers too...

Ahead of the Linux 7.1-rc7 test kernel release due out later today, a pull request has been submitted of some "x86 fixes" for this kernel release. Most notable with this pull request is acknowledging some additional AMD Zen 6 CPU models...

Broadcom V3D 3.3 and V3D 4.1 graphics IP is set to be deprecated and removed from the V3D kernel graphics/display driver after the Mesa driver support was removed two years ago already. The situation in both cases amount to lack of hardware by developers for testing and with that likely no other known users of these particular Broadcom graphics in selects SoCs...

FreeBSD 15.1 was supposed to be out at the start of June but a second release candidate pushed it back by a week and now a third needed release candidate has pushed out the stable release by an additional week...

GNOME Sushi as the file previewer component for the GNOME Files (Nautilus) file manager has now been adapted to make use of GTK4 as well as delivering other enhancements for a nicer file previewing experience on GNOME...

OpenCV 5.0 released today as a major update to this widely-used, open-source computer vision (CV) library...

Daniel Schurmann of Valve's Linux team has posted a new VK_AMD_anti_lag implementation for the RADV open-source Radeon Vulkan driver...

Ape is a new open-source Vulkan driver written in the Zig programming language and not dependent upon any Mesa code...

KDE developers continue with last minute bug fixes ahead of the Plasma 6.7 desktop release later this month as well as preparing early feature work toward Plasma 6.8 and also landing more fixes for the current Plasma 6.6 stable series...

For those looking for open-source food nutrition software, GNU's GNUtrition has seen its first new release in 14 years...

Today marks 22 years since I started Phoronix.com to focus on Linux hardware reviews. It's been quite a journey from the early state of Linux hardware support.....

It's unfortunately another busy week in the Linux 7.1 kernel space with not everything slowing down so well, late in the cycle and leading to the upcoming 7.1 stable release. This week's DRM pull request of kernel graphics/accelerator drivers is again heavy on fixes and also ends up disabling an ioctl interface given ongoing security concerns from that code merged last year...

Jean Baptiste Lallement of the Canonical Desktop Team today posted a roadmap of many development items they are hoping to tackle for Ubuntu 26.10 due out in October. Some of these desktop plans are more ambitious and will take multiple release cycles to fully realize, but it goes to show their continued investment into the Ubuntu desktop...

Last month CUDA-Oxide was introduced as an experimental Rust-to-CUDA compiler. From pure Rust programming language code, one can write CUDA GPU kernels in a "safe(ish)" manner with the CUDA-Oxide compiler emitting NVIDIA PTX output directly. Out today is the second update to CUDA-Oxide...

NVIDIA's Vera CPU is delivering the fastest ARM performance I have ever seen. For putting it into perspective how far the ARM server CPU hardware has come in just the last decade and for some "fun" benchmarks as part of Phoronix marking 22 years of Linux hardware reviews and benchmarking, here are some benchmarks showing the Ampere eMAG from September 2018 to the performance now with NVIDIA Vera. Not even factoring in the many software optimizations across the stack over the period, from simply the hardware side the ARM server CPU performance has advanced by more than 7x in eight years and in some workloads nearly 15x faster.

After three weeks without any Vulkan API spec updates, Vulkan 1.4.353 was released today to deliver the latest documentation updates for this high performance graphics/compute API as well as introducing three new extensions...

In addition to Apple M3 Device Trees for Linux 7.2, the SpacemiT RISC-V SoCs are seeing some notable Device Tree improvements with this next version of the Linux kernel...

Danilo Krummrich sent out the main set of DRM Rust subsystem changes on Thursday that are targeting the Linux 7.2 kernel. NVIDIA's open-source Nova driver continues seeing a bulk of the DRM Rust work as this modern successor to Nouveau continues taking shape...

In addition to AMDGPU finally seeing HDMI 2.1 FRL support in Linux 7.2, another change worth noting in this week's AMDGPU pull request is the continued work on enhancing the AMDGPU/AMDKFD kernel driver support for non-4K page size kernel builds. In particular this helps out with AMD graphics and ROCm for the likes of ARM and POWER...

EGLStreams was NVIDIA's original route to supporting Wayland with their official Linux graphics driver stack. Adoption was limited and driver vendors outside of NVIDIA didn't end up going with EGLStreams/EGLDevice. Thankfully, NVIDIA corrected course long ago with DMA-BUF, GBM, and KMS support that aligns with the rest of the ecosystem, and now that old code path is being removed from GNOME Mutter...

Earlier this week I ran benchmarks of different CachyOS Linux kernel flavors that proved interesting from the performance overhead of their hardened kernel build to various other interesting performancr takeaways. One kernel flavor I hadn't tested though was their build with the BORE scheduler. Given the interest and feedback from Phoronix readers, here is an article focused on looking at the performance of the BORE scheduler for the Linux kernel on CachyOS.