Completely separate from the big performance regression I noted earlier this week for the Linux 6.15 Git kernel and fixed yesterday in the upstream codebase, another significant performance issue was also uncovered and fixed this week in Linux 6.15 Git...

New Linux kernel patches have been posted adding the necessary Device Tree files so that Linux is able to boot on the Qualcomm Snapdragon X1 powered Dell Inspiron 14 Plus laptop...

Mesa has supported on-disk shader cache for years to help speed-up game load times and overall system efficiencies. They had shifted from a multi-file cache layout to a single file cache for greater space savings. Steam also added support for the single-file cache. But now upstream Mesa is shifting back from the single-file cache default to the multi-file cache over performance issues...

At the end of last year the upstreaming efforts began for a Raspberry Pi HEVC decoder driver for getting H.265/HEVC accelerated decode working on the Raspberry Pi 4 and Raspberry Pi 5 single-board computers with the mainline kernel. Nearly a half-year later that effort is still ongoing but yesterday brought the third iteration of this driver...

The latest bit of hardware enablement coming out of Asahi Linux and queued for introduction in the mainline kernel the next cycle is PCI Express (PCIe) support for the Apple M2 Pro SoC...

AMD has published as open-source their "GPU-IOV Module" used for virtualization with Instinct accelerators. It's also reported on their roadmap for bringing virtualization support to their client (Radeon) discrete GPUs...

OpenMandriva Lx 6.0 Rock is now available with the KDE Plasma 6 desktop shipping by default while still offering both Wayland and X11 session options. There is also now an official server edition of OpenMandriva...

The Linux 6.15 kernel has just merged a fix for the big performance regression I spotlighted yesterday on Phoronix with a huge hit to the Nginx HTTPS web server performance that could see a 3x regression from the in-development Linux 6.15 kernel code. It turns out other workloads/applications also were negatively impacted by this regression. While a stumper at first even with the bisected commit, the issue was luckily resolved very quickly.

Mesa 25.1-rc2 is now available for testing as the newest weekly test version of this collection of OpenGL and Vulkan drivers. Mesa 25.1 continues working its way toward a stable release in May...

Earlier this month Canonical announced Ubuntu Linux support for the Orange Pi RV2 as a low-cost RISC-V developer board. The Orange Pi RV2 with eight RISC-V cores and 8GB of RAM costs just around $64 USD. The price point and specs were interesting that I ordered one and have been running performance benchmarks on it since for seeing how capable this is as finally an interesting, low-cost and readily available RISC-V board.

The newest open-source Linux driver being worked on by AMD engineers is a Remote Direct Memory Access (RDMA) solution for their Pensando networking hardware...

Back in March some ideas were talked about by Canonical engineers for Ubuntu Linux to move to Rust Coreutils and other Rust-written system components. Some of this is likely to materialize for the Ubuntu 25.10 release due out in October to allow for sufficient testing ahead of the all important Ubuntu 26.04 LTS release next year. Today the more solidified plans have been laid out for moving to the Rust Coreutils as a replacement to GNU Coreutils with Ubuntu 25.10...

Following a lot of work in this direction toward the end goal of removing GNOME X11 support, this milestone may finally be acheived for the Fedora 43 cycle due out by the end of the year. A change proposal has been filed for removing the GNOME X11 packages in the repository and in turn making the GNOME desktop Wayland-only on Fedora Linux...

One of the biggest surprises of last year was finding out that VMware has been working on shifting VMware Workstation from proprietary code to building atop the upstream KVM code within the Linux kernel. Following the initial patches from last October, an updated patch series was sent out on the Linux kernel mailing list yesterday for working on this transition...

The Google Pixel 4a smartphones launched in mid-2020 and now in mid-2025 it looks like we might finally be close to seeing mainline kernel support for the Pixel 4a devices and other hardware making use of Qualcomm Snapdragon 730/730G/732G SoCs...

QEMU 10.0 was released today as the newest version of this emulator code that plays an important role in the open-source Linux virtualization stack...

With the Linux 6.15 kernel settling down nicely, I've been testing out the current Linux Git state on more systems in looking for any performance changes. Unfortunately this week I ran into a large performance regression affecting the Nginx HTTP(S) web server. Here's a look at that problem currently affecting Linux Git.

The April 2025 ISO update is out today for CachyOS, the Arch based Linux distribution known for its aggressive out-of-the-box performance on modern hardware...

Mesa's NVK Vulkan driver had been Vulkan 1.4 conformant for Turing and newer GPUs, but now with Mesa 25.2-devel it's Vulkan 1.4 conformant going back to Maxwell GPUs. This change is exported to be back-ported to the upcoming Mesa 25.1 release as well for those interested in using this open-source NVIDIA Vulkan driver...

For those that have been wondering about the Linux support and more details around the Ryzen AI Max 300 "Strix Halo" APUs on Linux, here's a brief update...

Today's Linux benchmarking at Phoronix is looking at how the Intel Core Ultra 9 285K performance has evolved since its launch last October. Taking the launch-day benchmarks from October with the same hardware, we are revisiting the Intel Arrow Lake performance under Linux today using the newest system BIOS and the newly-released Ubuntu 25.04 for seeing how the performance has evolved roughly over the past half-year.

One of the early features being merged for what will become the GCC 16 compiler following last week's GCC 15 code branching is CPU targeting support for the XuanTie RISC-V processors...

Eugen Hristev of Linaro sent out a "request for comments" patch series today proposing kmemdump for the Linux kernel as a new means to assist in debugging driver/system problems by making it easier to dump memory for specific areas/regions...

The Linux kernel has seen safeguards for select prior Intel CPU cores due to bugs around the MONITOR/MWAIT implementation with the processors. MWAIT/MONITOR bugs was found to be the cause of annoying issues at boot for Lunar Lake laptops and also previously plagued Goldmont Atom cores. It also turns out that Ice Lake servers can be subject to similar MWAIT/MONITOR behavior...

Merged yesterday to Mesa Git for next quarter's Mesa 25.2 release is an improvement for the Intel Vulkan ray-tracing code with an eye on next-gen Xe3 graphics hardware...

Last year a patch was raised for the Linux kernel that would report outdated CPU microcode versions as a security vulnerability. With Intel routinely issuing new CPU microcode updates for security vulnerabilities and addressing other functional issues, the Linux kernel would begin warning users when recognizing that outdated CPU microcode is deployed for a given processor. That patch has now been queued into a tip/tip.git branch and thus looking like it will be submitted for the upcoming Linux 6.16 kernel cycle...

With the recently released AMD ROCm 6.4 release for this open-source GPU compute stack for Radeon and Instinct hardware there are yet more indications around AMD's growing software ecosystem expansion. With ROCm 6.4 are additions to the HIP API for allowing linking of SPIR-V code objects, which is the intermediate representation used by Vulkan as well as with OpenCL and other Khronos APIs...

A 2021 era patch for the GNU Compiler Collection (GCC) has been revived and discussed in recent days around simplifying the memcpy and memset inlining strategies when compiling code with the "-mtune=generic" option. The patch takes the approach during that generic tuning to try to avoid branches. In doing so, some nice performance benefits are observed in some benchmarks...

Earlier this month was a look at the AMD RDNA 3.5 graphics between Windows 11 and Ubuntu 25.04 using a Ryzen AI 7 PRO 360 "Strix Point" SoC within a Lenovo ThinkPad T14s Gen 6. That was an interesting benchmark battle and providing a fresh look at the open-source AMD Linux graphics driver stack relative to Radeon Software on Windows. For those curious about the current Zen 5(C) performance, today's article are all of the CPU benchmarks for the AMD Ryzen AI 7 PRO 360 performance under the newly-released Ubuntu 25.04 and Windows 11 as pre-loaded by Lenovo.

Intel engineers have recently been working on the notion of cache-aware scheduling / load balancing for benefiting the likes of Intel and AMD processors sporting multiple caches. Posted today was the newest iteration of these patches that are still seeking to get more feedback and testing around this potential useful addition to the Linux kernel...

One year ago we covered Micron working on FamFS as a new file-system for fabric-attached memory with an emphasis on Compute Express Link (CXL) devices. That started off as a conventional kernel driver while now the newest patches posted this weekend are morphing it into a user-space driver via FUSE...

Merged last year in Linux 6.11 was getrandom() support in the vDSO for x86/x86_64 and then in Linux 6.12 was extended to LoongArch and ARM64. With the upcoming Linux 6.16 cycle, this support for faster while still secure RNG for user-space is set to come to RISC-V...

After missing its bi-weekly development release regiment this past Friday, Wine 10.6 was tagged on Sunday as the newest routine update to this open-source software that enables Windows applications and games to run on Linux and other platforms...

Easter doesn't get in the way of Linus Torvalds' weekly kernel release regiment: Linux 6.15-rc3 is now available for testing the latest kernel fixes ahead of the stable Linux 6.15 kernel release coming around the end of May...

Merged for the Linux 6.15 kernel were the very early boilerplate code around the NOVA driver as a new, open-source and Rust-written NVIDIA Linux kernel graphics/display driver. This successor to the Nouveau kernel driver is going to leverage the NVIDIA GPU System Processor (GSP) to make it easier to develop and maintain this open-source driver. But depending upon the GSP also means the NOVA driver will only work with RTX 20 class GPUs and newer. This driver is going to be built up gradually within the mainline Linux kernel and coming out this Easter were a new set of 16 patches for further laying the NOVA groundwork...

Sway 1.11-rc1 is out today as a test release ahead of this next Wayland compositor feature release. Sway 1.11 is bringing a number of new features for this i3-inspired Wayland compositor while also building off the new features laid out in the recent wlroots 0.19-rc1 library...

The FreeType library for rendering text onto bitmaps that is widely used by a variety of applications has landed a set of three patches today providing an important performance improvement to address a significant inefficiency within the existing FreeType codebase...

Greg Kroah-Hartman has released a few new Linux kernel stable point releases today for Easter and also capping off the Linux 6.13 kernel cycle in the process...

The long-in-development OpenVPN DCO kernel driver for providing data channel offloading (DCO) to yield faster OpenVPN performance looks like it's now in a state for upstreaming with the Linux 6.16 kernel...

Just a few days ago there was talk of potentially removing the Apple HFS and HFS+ file-system drivers from the Linux kernel considering they had been orphaned for a decade and beginning to cause a maintenance burden. After briefly being marked for deprecation, it now looks like the drivers may be maintained with new maintainers alleging to step-up to the role...