Svobodný software

NVIDIA's Olympus are the ARM64 cores found within the upcoming Vera CPU that will be paired with Rubin. Olympus cores are claimed to be twice as fast as NVIDIA's current CPU cores found in Grace and based on Neoverse-V2. Earlier this year the open-source compilers landed initial support for Olympus while now a proper CPU scheduling model has been upstreamed into LLVM 22...

Added to the Linux kernel earlier this year was the new X86_NATIVE_CPU Kconfig option to enable compiler optimizations for the local/native CPU in use when building the Linux kernel. In effect about ensuring that the "-march=native" compiler flag is set for the kernel build for optimizing the Linux kernel build for your processor being used. Back with Linux 6.16 I ran some benchmarks of the Linux kernel build with X86_NATIVE_CPU to gauge the impact. Now with the current Linux 6.19 kernel and some different hardware, here are some additional on/off benchmarks for evaluating the impact of the Linux kernel build with X86_NATIVE_CPU...

InputPlumber 0.70 is out today as the newest feature update to this open-source input router and re-mapper daemon for Linux systems. With more gaming handhelds coming to market and other controllers as well as the upward trajectory of Linux gaming, InputPlumber is becoming more applicable for this daemon to combine various input devices into different virtual device formats...

An important fix has made it into the X.Org Server XWayland codebase ahead of the new year. XWayland has been fixed to avoid sending incorrect pointer coordinates to X11 clients on pointer enter events...

The open-source OpenGL and Vulkan drivers making up Mesa had another very successful year. Even with all the years being invested into Mesa largely by Intel, AMD, Valve, Red Hat, and others, the upward trajectory continues for Mesa on expanding the hardware support, punctually adding new Vulkan extensions, and racking up other wins...

In demonstrating one of the gaps of man pages in modern times and likely having hindered the adoption of the Linux kernel's new mount API, it took more than six years for those system calls to be properly documented within man pages. The Linux "new" mount API was introduced back in mid-2019 with Linux 5.2 and since supported by key file-systems after several years but not until weeks ago was this file descriptor based mount API scoped out within man pages...

Ve WebAssembly je definováno asi dvě stě různých SIMD (vektorových) instrukcí. Dnes si popíšeme vybrané vektorové instrukce, z nichž některé umožňují provádění i dosti složitých operací (zhruba na úrovni SSE2).

Hyprland 0.53 was released today as the last feature update to this Wayland compositor for 2025...

One of the more interesting announcements over the holiday period thus far is that moving into 2026, CachyOS is looking to develop a server edition for their Arch Linux based operating system. CachyOS has garnered quite a following among Linux enthusiasts and gamers for its competitive out-of-the-box performance, employing some of the optimizations by Intel's now defunct Clear Linux distribution, and pulling in all of the goodness from upstream Arch Linux. It will be very interesting to see how CachyOS Server Edition takes shape and whether it will develop a foothold in any prominent enterprise environments. While CachyOS Server Edition isn't yet released and still in its early stages, over the holidays I decided to see how CachyOS in its current form currently looks for AMD EPYC servers.

One of the unexpected Linux kernel surprises of 2025 was NTFSPLUS being announced as a new driver for Microsoft's NTFS file-system with better performance and more features compared to the classic read-only NTFS driver or the "NTFS3" kernel driver that Paragon Software submitted upstream. That NTFSPLUS driver has continued expanding its feature set and robustness and sent out today was the third iteration of the patches. Now this driver is simply being called "NTFS" with no longer going by the NTFSPLUS name...

One of the many interesting Linux kernel innovations I have closely been following this year has been the proposed Cache Aware Scheduling support. I have shown the Cache Aware Scheduling performance on AMD EPYC as well as the Intel Xeon 6 Granite Rapids performance, but what about desktops? In this article is a quick look at Cache Aware Scheduling with the Ryzen 9 9950X3D...

Open-source developer Derek J. Clark continues leading the efforts on improving the Lenovo Legion Go series hardware support under Linux. Posted today was the second iteration of the HID driver work for the Legion Go and Legion Go S for configuration support with the built-in controller HID interfaces...

The next Linux kernel cycle, which will be known as Linux 6.20 or more than likely Linux 7.0, is expected to land some IO_uring improvements for better IOPOLL polling...

Longtime Linux users likely have fond memories of SuperTux as the open-source jump-n-run game that used to be included on some early Linux live CD/DVDs for this Super Mario Bros inspired game. There hasn't been a new release of SuperTux in over four years but out today is the beta of SuperTux 0.7 as a major overhaul to the free software, family-friendly game title...

In addition to today's blog post calling out the need for others to takeover the This Week In Plasma series, KDE developer Nate Graham also published another blog post to highlight the successes of the Plasma desktop over 2025. In particular, the KDE Plasma Wayland transition "nears completion" as it works to become Wayland-only in early 2027...

Tým Mageia zveřejnil plán pro další verzi své distribuce, Mageia 10. Debian získává vlastní systém podobný PPA s názvem Debusine. Phoenix je nový X server napsaný kompletně od nuly v programovacím jazyce Zig.

Linus Torvalds just released Linux 6.19-rc3 to ship this week's fixes. Linux 6.19-rc3 is coming in light as expected due to the Christmas week with many corporate developers getting paid time off and others taking part in year-end festivities...

Between the DXVK and VKD3D(-Proton) projects there is good support for Direct3D 8 through Direct3D 12 implementations atop the Vulkan API for Linux gaming usage. For those preferring more retro classic gaming, D7VK came about more recently for Direct3D 7 as a DXVK fork. Out today is D7VK 1.1 and besides delivering fixes for its D3D7 implementation has also now tacked on an experimental D3D6 front-end...

Similar to AMD GCN 1.0/1.1 GPUs where there was product overlap between the Radeon and AMDGPU kernel drivers (and now using AMDGPU by default for those aging Radeon GPUs with Linux 6.19), the Intel Arc A-Series "Alchenist" graphics cards are in a similar boat. By default the Alchemist and Meteor Lake graphics use the i915 kernel driver by default but they can optionally use the Xe kernel driver instead as what is Intel's modern open-source kernel graphics driver. As part of our various year end 2025 benchmarks, today is a look at the current i915 vs. Xe driver performance for the Intel Arc Graphics A580.

Fedora Linux this year continued in punctually shipping the very latest upstream Linux innovations from the freshest Wayland components to Linux kernel features and continuing to leverage other improvements in the open-source world...