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Windows WSL 2.7.0 Released with Newer Linux 6.6 LTS Point Release, Many Fixes
4 months ago
- Microsoft released WSL 2.7.0, the latest version of Windows Subsystem for Linux.
- WSL 2.7.0 uses a downstream Linux kernel derived from Linux 6.6.114 LTS.
- Despite newer LTS kernels (6.12 and 6.18), WSL remains on the 6.6 branch for stability.
- The update includes security fixes, bug fixes, settings improvements, and restored WSL2_VM_ID environment variable.
- Translation updates and other minor changes are also part of this release.
- WSL 2.7.0 is available on GitHub for those interested in the open-source project.
Linux 6.19's Significant ~30% Performance Boost for Old AMD Radeon GPUs
4 months ago
- Linux 6.19 kernel will default to the AMDGPU driver for old AMD GCN 1.0/1.1 GPUs, replacing the legacy Radeon driver.
- Performance improvements of up to ~30% are expected for these older GPUs with the new driver.
- Valve's contributions have enabled feature parity for GCN 1.0/1.1 GPUs, making the switch to AMDGPU possible.
- AMDGPU offers better performance, RADV Vulkan support, and ongoing updates compared to the Radeon driver.
- Testing was conducted with a Radeon HD 7950 GPU, Mesa 26.0-devel, and an Ubuntu 25.10 host.
Are We Loong Yet?
4 months ago
- LoongArch support has been integrated into most parts of the open-source Linux infrastructure.
- Despite the incomplete release of the LoongArch manual, public information (e.g., QEMU and Linux changes) has made instruction encoding and behaviors effectively public.
- Optimization efforts for LoongArch are no longer hindered by the absence of manuals.
- The LoongArch new-world ecosystem is expected to evolve rapidly in 2023-2024.
- The site is community-maintained and welcomes contributions.
- JIT runtimes supporting LoongArch include .NET ≥ 9.0, JavaScriptCore, LuaJIT, Mono, OpenJDK, sljit, SpiderMonkey ≥ 107, V8 ≥ 9.5.3, Wasmtime, and Xbyak LoongArch64.
- Distributions supporting LoongArch include Alpine Linux ≥ 3.21.0, ALT Linux, Android (AOSP), Anolis OS ≥ 23.1, Buildroot, CLFS for LoongArch, Debian, deepin ≥ 23, Fedora, Freedesktop SDK, Gentoo, LFS LoongArch Edition ≥ 12.0, Loong Arch Linux, LoongFire, NixOS / Nixpkgs ≥ 25.11, OpenCloudOS L3 ≥ 9.4, OpenCloudOS Stream ≥ 23, openEuler ≥ 24.03, OpenWrt ≥ 24.10, Proxmox VE, Slackware, T2 SDE ≥ 24.5, Yongbao, and AOSC OS ≥ 11.2.1.
Meta Is Using the Linux Scheduler Designed for Valve's Steam Deck on Its Servers
4 months ago
- Meta is using the Linux scheduler SCX-LAVD, originally designed for Valve's Steam Deck, on its servers.
- SCX-LAVD, developed by Igalia for Valve, performs similarly or better than EEVDF for gaming handhelds.
- The scheduler is also used by CachyOS Handheld Edition, Bazzite, and other Linux gaming initiatives.
- Meta engineers presented findings at LPC 2025, showing SCX-LAVD works well on large servers too.
- Meta refers to SCX-LAVD as 'Meta's New Default Scheduler' for its server fleet.
- The scheduler adapts well to varying CPU and memory configurations and balances load effectively.
- Meta's research indicates SCX-LAVD is suitable for general use-cases without needing specialized schedulers.
Phoenix: A modern X server written from scratch in Zig
4 months ago
- Phoenix is a new X server written in Zig, designed as a modern alternative to Xorg.
- Currently, Phoenix can only run nested within an existing X server and supports GLX, EGL, and Vulkan graphics.
- Goals include simplicity (supporting a subset of X11 protocol for modern apps), security (with Zig's safety features), and better hardware support (multi-monitor, VRR, HDR).
- Security features include automatic protocol message parsing, application isolation, and permission prompts for interactions.
- Improvements over Xorg include no tearing by default, built-in compositor, and lower vsync/compositor latency.
- Phoenix aims to support new standards like per-monitor DPI and extend the X11 protocol for features like HDR.
- Wayland compatibility is planned, either natively or via a bridge like 12to11.
- Non-goals include replacing Xorg entirely, supporting X11 screens, and implementing GrabServer or indirect GLX.
- Differences from X11 include not implementing mandatory font operations and using UTF-8 for strings unless specified otherwise.
- Installation involves Zig build commands, with dependencies including Zig 0.14.1, x11, wayland, drm, and OpenGL.
Wayback 0.3 Released
4 months ago
- Third Wayback preview release, version 0.3, announced just before 2026.
- Available on GitLab releases page or through distribution updates.
- Alpha-quality release; bug and feature reports are encouraged.
- Presented at X.Org Developer’s Conference 2025 by kaniini, with progress and roadmap discussed.
- Recording and slides from the conference available on YouTube.
- Progress since version 0.2 includes availability in stable repositories of popular Linux distros.
- Moved to Alpine Linux’s community repository and available on Fedora 42 and 43.
- Manual pages updated, typo fixes, and command line option parser overhauled.
- Future work includes moving away from Xwayland’s rootful mode to rootless for better features.
- New participants welcome in #wayback IRC channel on Libera.Chat or Matrix.
- Git shortlog highlights contributions from various developers.
Ultimate-Linux: Userspace for Linux in Pure JavaScript
4 months ago
- A fun project to build a tiny Linux distribution using JavaScript and a bit of C.
- The project includes an 'Ultimate Linux Shell' with commands like ls, cd, cat, mkdir, mount, and exit.
- Discussion on Linux's unique position as a kernel shipped independently from the OS, unlike BSDs.
- Exploration of Linux's stable syscall ABI as its contract with software, contrasting with macOS's approach.
- Insight into how pure Go binaries can target the Linux kernel directly via syscalls, bypassing system libraries.
- Mention of the u-root project and its relevance to static binaries.
- Addressing criticisms about discussions on C, Go, Rust, and the nature of Linux as a kernel.
- Creation of a libc-less micro Linux distribution in JavaScript, with a transpilation step through C.
- Instructions for downloading and setting up QuickJS and musl libc for the project.
- Steps to transpile JavaScript to C, link with system operations, and produce a standalone ELF file.
- Guide to building an initramfs and running the Ultimate Shell in a VM using QEMU.
- Demonstration of the shell's functionality, including mounting proc and inspecting system information.
I'm a laptop weirdo and that's why I like my new Framework 13
4 months ago
- The author sold their M1 Max Macbook Pro to buy a Framework 13 DIY Edition laptop, embracing the ability to tinker and upgrade.
- Recalls nostalgic memories of modifying past laptops, starting with a Samsung NC10 Netbook, upgrading RAM, SSD, and even turning it into a Hackintosh.
- Explored lightweight Linux distros like CrunchBang, Arch, and experimented with tiling window managers to maximize the small screen utility.
- Used a tool called GMABooster to enhance the performance of the GMA950 graphics chip, later maintaining the AUR package for it.
- Transitioned to a 2011 Macbook Pro in college, upgrading RAM beyond Apple's specs and replacing the CD drive with an SSD, triple-booting OSX, Windows, and Linux.
- Shifted to a ThinkPad X1 Carbon Gen 7 but found it unmodifiable, marking a period of less tinkering.
- Received a high-spec M1 Max Macbook Pro as part of a severance package but felt constrained by its lack of repairability and macOS's limitations.
- Chose the Framework 13 for its repairability and upgradeability, inspired by its iterations and a friend's positive experience.
- Highlights the Framework 13's ability to change RAM, SSD, and repair the screen, contrasting with most modern laptops.
- Embraces the identity of a 'laptop weirdo,' celebrating eccentricity and the joy of hardware tinkering.
Ubuntu 26.04 LTS – The Roadmap
4 months ago
- Ubuntu 26.04 LTS development cycle begins with a focus on stability, refinement, and cohesive user experience.
- GNOME 50 will be introduced with new default applications: Showtime (video player) and Resources (system monitor).
- Wayland session improvements aim for better performance and stability, especially on Nvidia GPUs.
- Fingerprint reader enhancements include secure, SPDM-based authentication for better biometric support on OEM devices.
- Better snap integration to make snap applications feel native with improved desktop file identification and behavior.
- PipeWire audio stack improvements focus on easier updates and maintenance without replacing Debian packages.
- Automated snap updates and migration to core24 base for Canonical-maintained snaps.
- Accessibility improvements include better installer and first boot experience, keyboard navigation, and screen reader support with Piper neural speech engine.
- TPM-backed full disk encryption enhancements offer more user control, including PIN/passphrase management post-installation.
- Redesigned permission prompts with a cleaner, modern look aligned with GNOME’s style.
- App Center to centralize software management, replacing older tools like Software Properties.
- Enterprise integration improvements include enhanced cloud authentication, OIDC broker support, and Microsoft MFA login flows.
- Ubuntu on WSL focuses on reliability, testing, and documentation for developers on Windows.
- Major documentation push for Ubuntu 26.04, including migration of tutorials and a new Ubuntu wiki.
- Key release milestones: Feature Freeze (Feb 16, 2026), Beta (Mar 23, 2026), Final Release (Apr 23, 2026).
tc-ematch(8) extended matches for use with "basic", "cgroup" or "flow" filters
4 months ago
- Extended matches (ematch) are used with 'basic', 'cgroup', or 'flow' filters in Linux.
- Syntax for ematch includes logical operators (and/or), grouping with parentheses, and various match modules like 'cmp', 'meta', 'nbyte', 'u32', 'ipset', 'ipt', and 'canid'.
- Examples of ematch usage include comparing packet data, checking metadata attributes, testing against ipset membership, and matching CAN frames.
- The ematch infrastructure was added by Thomas Graf and is part of the iproute2 project.
- Bug reports and updates for the manual page can be sent to [email protected] or [email protected].
The Performance of Arch Linux Powered CachyOS on AMD EPYC Servers
4 months ago
- CachyOS, an Arch Linux-based OS, is developing a server edition set for release in 2026.
- CachyOS is known for its performance optimizations, inspired by Intel's defunct Clear Linux.
- Benchmarks were conducted on an AMD EPYC server comparing CachyOS, Arch Linux, and Ubuntu.
- Tested systems included Ubuntu 24.04.3 LTS, Ubuntu 25.10, Arch Linux, and CachyOS.
- Hardware used: 96-core AMD EPYC 9655P, Supermicro H13SSL-N, 12x64GB DDR5-6000, 3.2TB NVMe SSD.
- Performance and power consumption metrics were evaluated to assess performance-per-Watt.
- Future plans include testing CachyOS Server Edition on AMD EPYC and Intel Xeon servers post-release.
Linux 7.0 Expected to Bring IO_uring Iopoll Polling Improvements
4 months ago
- Linux 7.0 (or 6.20) is expected to include IO_uring IOPOLL polling improvements.
- Jens Axboe, IO_uring lead developer, has queued a patch to improve IOPOLL polling for asynchronous I/O.
- The patch changes the IOPOLL completion list from singly linked to doubly linked, allowing easier removal of completed requests.
- This improvement helps when different devices or disparate I/O operations are involved in the same polling ring.
- Fengnan Chang of Bytedance originally proposed the improvement, sharing benchmark results showing significant performance gains.
Win32 is the stable Linux ABI
4 months ago
- The concept of 'Win32/Linux' or 'loss32' is introduced, combining Linux with Win32 software running under WINE.
- Aims to create a free and open-source OS where users can run .exe files directly, targeting power users and those who prefer this approach.
- Critiques ReactOS for its limitations in hardware compatibility and stability, proposing loss32 as a more viable alternative built on Linux and WINE.
- Highlights the practicality of running Win32 software on Linux for accessing a vast library of applications, especially in creative fields and gaming.
- Mentions ongoing development to smooth out rough edges and package the environment for easier installation.
- Invites collaboration and feedback, especially from those with expertise in WINE, ReactOS userland, or related areas.
Show HN: Replacing my OS process scheduler with an LLM
4 months ago
- BrainKernel is a TUI process manager that uses an LLM to analyze processes beyond just CPU usage.
- v3.4.0 'The Silent Guardian' Update includes features like Diplomatic Immunity, Stealth Mode, and Roast Mode.
- It distinguishes between essential and unnecessary processes, e.g., protecting browsers but killing bloatware.
- Supports both cloud (Groq) and local (Ollama) models, optimized for low CPU usage (<1%).
- Includes safety features like PID Safety Lock and debouncing to prevent accidental kills.
- Users can interact via key commands for actions like roasting processes or setting a Focus App.
- Designed to be safe with hardcoded protections for certain process categories.
- Open to contributions for identifying new bloatware processes.
XFCE-Winxp-Tc
4 months ago
- A project to replicate Windows XP experience on XFCE/Linux, including themes, icons, cursors, and programs.
- Not intended for easing non-technical users into Linux; aimed at enthusiasts.
- No attempt to hide Linux base; 'Windows XP on Linux kernel' approach.
- Massively under construction by a single developer; requests for perfection discouraged.
- Motivation: Loss of support for Luna theme on Windows 7/10, leading to Linux switch.
- Aims for pixel-perfect replication, beyond what themes alone can achieve.
- GTK3 themes may appear broken in some programs; issues should be reported to the project.
- Theme based on Adwaita for better compatibility and easier bug fixes.
- Source code licensed under GPL 2.0; Microsoft assets remain copyrighted.
- No formal roadmap; goal is to replicate all aspects of Windows XP.
- Future plans include a user-friendly setup application and possibly an OOBE for nostalgia.
Windows 11 Outperforming Linux on an Intel Arrow Lake H Laptop
4 months ago
- Windows 11 outperforms Linux on Lenovo ThinkPad P1 Gen 8 with Intel Arrow Lake H processor.
- Linux traditionally leads in performance, especially in demanding creator workloads like Blender rendering.
- Unexpected results show Windows 11 winning in benchmarks where Linux usually dominates.
- Lenovo and Intel teams investigated but found no hardware or firmware issues.
- Future tests needed to determine if this is an isolated case or a new trend.
Mastodon Stories for Systemd v259
4 months ago
- Systemd v259 was released on December 17.
- A series of 25 posts on Mastodon highlighted new features under #systemd259.
- Key features include systemd-resolved hooks, Musl libc support, and NvPCR support.
- Upcoming posts for systemd v260 will use the #systemd260 hashtag.
- Previous blog posts for systemd v258, v257, and v256 are referenced.
A love song for Linux gamers with old GPUs
4 months ago
- AMD GPUs are well-supported on Linux, but older GCN1 (Southern Islands) and GCN2 (Sea Islands) GPUs had issues.
- The author worked on improving the amdgpu kernel driver for these older GPUs to enhance the default Linux user experience.
- RADV (Vulkan driver) already supported GFX6-7 GPUs, but the kernel driver (amdgpu) was not enabled by default, leading to poor user experiences.
- Key issues included display features (analog connectors, DP/HDMI audio), VCE1 video encoding, and power management.
- The author fixed analog connector support in DC (Display Core), addressing issues like flickering, black screens, and incorrect display clocks.
- DP/HDMI audio support was improved, with DP audio now working on Tahiti GPUs for the first time on Linux.
- Power management fixes were implemented, including disabling ASPM on SI GPUs to prevent random hangs.
- VCE1 video encoding support was added, enabling H264 encoding up to 2048 x 1152 on SI GPUs.
- The author acquired multiple SI and CIK GPUs for testing, ensuring broad compatibility.
- The work ensures that older GPUs remain supported, benefiting users who rely on older hardware.
- Future work includes supporting DRM format modifiers, TRAVIS/NUTMEG display bridges, and retiring legacy code.
- The author learned that kernel development is approachable and maintainers are supportive, despite development latency challenges.
DENT: A network operating system (NOS) for everyone else
4 months ago
- Build an ecosystem around a Linux-supported network operating system and control plane.
- Foster an open-source community for network OS, control, and management plane use cases.
- Enable collaboration across developers, providers, and users in the networking stack.
- Establish a neutral home with governance, infrastructure, and operations.
- Invite the networking ecosystem to participate in building a common network OS.
Linux Addressing Out-of-Memory Killer Inaccuracy on Large Core Count Systems
4 months ago
- A patch by Linux developer Mathieu Desnoyers is being introduced to fix inaccuracies in the OOM killer on large core count systems.
- The issue was reported in early 2025, affecting systems with 250+ cores/threads, causing significant memory usage inaccuracies.
- The inaccuracies led to incorrect OOM killing decisions and impeded monitoring, with some services experiencing tens of megabytes of deviation from expected memory usage.
- The patch improves accuracy but comes with performance trade-offs, such as up to 12% slower execution for short-lived processes and 9% increased system time in certain workloads.
- The patch is expected to be included in the Linux 6.20~7.0 kernel cycle.

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#linux

Windows WSL 2.7.0 Released with Newer Linux 6.6 LTS Point Release, Many Fixes

Linux 6.19's Significant ~30% Performance Boost for Old AMD Radeon GPUs

Are We Loong Yet?

Meta Is Using the Linux Scheduler Designed for Valve's Steam Deck on Its Servers

Phoenix: A modern X server written from scratch in Zig

Wayback 0.3 Released

Ultimate-Linux: Userspace for Linux in Pure JavaScript

I'm a laptop weirdo and that's why I like my new Framework 13

Ubuntu 26.04 LTS – The Roadmap

tc-ematch(8) extended matches for use with "basic", "cgroup" or "flow" filters

The Performance of Arch Linux Powered CachyOS on AMD EPYC Servers

Linux 7.0 Expected to Bring IO_uring Iopoll Polling Improvements

Win32 is the stable Linux ABI

Show HN: Replacing my OS process scheduler with an LLM

XFCE-Winxp-Tc

Windows 11 Outperforming Linux on an Intel Arrow Lake H Laptop

Mastodon Stories for Systemd v259

A love song for Linux gamers with old GPUs

DENT: A network operating system (NOS) for everyone else

Linux Addressing Out-of-Memory Killer Inaccuracy on Large Core Count Systems