Linux kernel

Tech Optimizer
April 4, 2026
An engineer from Amazon/AWS reported a significant performance regression in PostgreSQL when running on the nearly finalized Linux 7.0 kernel, with throughput dropping to about half of previous kernel versions. The regression, observed on a Graviton4 server, is attributed to increased time spent in a user-space spinlock due to changes in preemption modes in Linux 7.0. A patch to revert to PREEMPT_NONE as the default preemption model has been submitted but may not be adopted. Peter Zijlstra suggested that PostgreSQL should adapt to utilize the Restartable Sequences (RSEQ) time slice extension to mitigate the performance drop. If this adaptation is accepted, the responsibility for the performance decline may shift to PostgreSQL, potentially affecting users until the database is updated. The stable release of Linux 7.0 is expected in about two weeks, coinciding with the launch of Ubuntu 26.04 LTS.
Winsage
March 31, 2026
Microsoft plans to enhance the Windows Subsystem for Linux (WSL) in 2026, focusing on several key improvements for developers. These enhancements include: - Faster file performance between Linux and Windows to address current latency issues. - Improved network compatibility and throughput for better communication between environments. - A streamlined setup and onboarding experience to simplify installation for newcomers. - Enhanced enterprise management and security features to improve control and safety in corporate settings.
Winsage
March 29, 2026
Gaming on Linux has seen advancements, particularly with the introduction of NTSYNC, which replicates the Windows NT synchronization system in the Linux kernel. This integration aims to improve synchronization for games ported from Windows, reducing CPU burden and enhancing performance. Fedora 44, set to release around April 14th, will automatically implement NTSYNC, benefiting users of Wine and Proton without the need for manual activation. This development is expected to improve frame rates and compatibility for Linux gamers.
Winsage
March 26, 2026
The latest release of Wine, version 11, introduces a feature called NTSYNC, a kernel driver that enhances performance for Windows games running on Linux, achieving performance gains of up to 678%. This is accomplished through a new device, /dev/ntsync, which allows the Linux kernel to handle thread synchronization natively, replacing the previous Remote Procedure Call method. Wine 11 also completes the WoW64 implementation, enabling seamless running of both 32- and 64-bit games without multilib libraries. Other enhancements include improvements to the Wayland driver, EGL as the default backend for OpenGL rendering, initial support for hardware-accelerated H.264 decoding, improved force feedback support, a new Bluetooth driver, support for Zip64 compression, Unicode 17.0.0 support, TWAIN 2.0 scanning for 64-bit apps, and IPv6 ping functionality. Wine 11 is available in most Linux distributions' default repositories, except for Ubuntu 24.04, which lacks the necessary kernel support.
Winsage
March 24, 2026
Microsoft has introduced several updates for Windows 11, including a simplified installation process for the Windows Subsystem for Linux (WSL), allowing users to install it with a single command or via the Microsoft Store. Additionally, there are enhancements in interoperability between Windows and Linux file systems, as well as improvements in networking capabilities. WSL provides a genuine Linux kernel and supports GUI applications, facilitating seamless communication with the Windows environment.
Winsage
March 6, 2026
FRANK OS is a newly launched open-source graphical desktop operating system specifically designed for microcontrollers, with its first official version, 1.0, now available. It is built on FreeRTOS rather than the Linux kernel, optimized for the RP2350 microcontroller, which has approximately 520 KB of SRAM and dual CPU cores. The operating system features a desktop environment reminiscent of Windows 95, including overlapping windows, a taskbar, and a start-menu-style launcher. It supports standard desktop behaviors and allows users to switch between applications using an Alt+Tab-style interface. FRANK OS comes preloaded with nine lightweight applications, such as an interactive terminal, a C compiler, classic games, and a ZX Spectrum emulator. Programs can be compiled as ARM ELF binaries and loaded from an SD card. The system is aimed at hobbyists and experimental use.
Winsage
January 29, 2026
Microsoft developers and enterprise technology leaders are increasingly choosing Linux over Windows for development tasks, driven by performance concerns, workflow inefficiencies, and the rise of cloud-native development. The Windows Subsystem for Linux (WSL) has facilitated this shift by allowing developers to work in a Linux environment while still using Windows. Tools like Docker, Kubernetes, and Terraform, which are primarily designed for Linux, have led to a reevaluation of desktop strategies across various industries. Linux provides direct access to the same kernel and toolchain used in production, reducing discrepancies that can lead to bugs. It typically requires less memory at idle compared to Windows, making it more efficient for developers managing multiple containers or virtual machines. Microsoft has responded by investing in platform-agnostic tools like Visual Studio Code and embracing Linux on its Azure cloud platform, where over 50% of virtual machines run Linux. The introduction of WSL2 has improved compatibility and performance, but it has also highlighted Windows' limitations, leading to frustrations among developers. Security considerations favor Linux due to its open-source nature, allowing for greater customization and auditing. Financially, Linux can be more economical for enterprises due to lower licensing costs and reduced hardware requirements. Organizations that have switched to Linux report significant improvements in build times and overall developer experience. Hybrid strategies are emerging to accommodate developer preferences while ensuring security, with cloud-based development environments gaining traction. The trend toward Linux workstations reflects broader industry movements toward open source and platform independence, as companies adapt to attract and retain technical talent.
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