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Phoronix: news regarding free and open-source software



Linux 6.19 Enables Per-CPU BIO Caching By Default For Helping Performance

([Linux Storage] 1 Minute Ago File-System Performance)

Last week saw the main set of block and IO_uring feature patches for the Linux 6.19 merge window but some additional block subsystem material was merged on Monday. There are various NVMe updates now merged plus enabling per-CPU BIO caching by default to help with file-system performance.



FFmpeg Integrates Video Encoder For Advanced Professional Video (APV)

([Multimedia] 5 Minutes Ago APV Encoder)

One week ago FFmpeg merged decode support for Samsung's Advanced Professional Video "APV" codec. APV is designed for professional-grade video recording purposes and is a royalty-free video codec geared for prosumers. Now arriving within FFmpeg Git is APV video encode support.



AWS Graviton4 96-Core Performance vs. AMD EPYC & Intel Xeon CPUs

([Processors] 1 Minute Ago)

Last week I published some initial benchmarks of the Amazon/AWS Graviton4 processors now available within the EC2 cloud using the new "R8g" instances. That initial comparison was a 64 vCPU comparison of Graviton4 against AMD EPYC and Intel Xeon 64 vCPU AWS instances. In today's article is a look at the 96-core Graviton4 bare metal performance using the "r8g.metal-24xl" AWS instance type. The Graviton4 r8g.metal-24xl performance was then compared in today's article against various bare metal AMD EPYC, Ampere Altra Max, and Intel Xeon processors in the lab at Phoronix.



AerynOS 2025.12 Brings Many Package Updates

([Operating Systems] 15 Minutes Ago AerynOS 2025.12)

AerynOS 2025.12 is available today as the latest installment of this from-scratch Linux distribution originally known as Serpent OS.



Canonical To Distribute AMD ROCm Libraries With Ubuntu 26.04 LTS

([Ubuntu] 5 Hours Ago AMD ROCm + Ubuntu 26.04 LTS)

AMD previously talked of simplifying the in-box Linux support for ROCm during the second half of 2025. So far we haven't seen any groundbreaking changes from that initiative besides AMD working on various package archives/repositories to make it easier to install the latest ROCm on different Linux distributions. But today a big announcement is now public that Canonical with next year's Ubuntu 26.04 LTS release will provide official ROCm packages along with other libraries.



Linux Foundation's Newest Endeavor: The Agentic AI Foundation

([Free Software] 5 Hours Ago Agentic AI Foundation)

The Linux Foundation today announced it's formed another foundation under its growing umbrella that extends well beyond the traditional "Linux" landscape: the Agentic AI Foundation.



Firefox 147 Beta Released With XDG Base Directory Support

([Mozilla] 6 Hours Ago Firefox 147 Beta)

With Firefox 146 released, which is exciting for delivering fractional scaling on Wayland, Firefox 147 Beta is now available and it's also quite exciting to Linux users for another reason.



Scheduler Woes: Bisecting Early Performance Regressions Found In Linux 6.19

([Software] 7 Hours Ago 10 Comments)

Yesterday I noted some early performance regressions I've found on the Linux 6.19 kernel compared to Linux 6.18 LTS stable. Those initial benchmarks were on an AMD EPYC server. Since then I've seen many of the same workloads regressing similarly on an AMD Ryzen Threadripper workstation between Linux 6.18 and Linux 6.19 Git. Given the significant impact and AMD Threadripper processors always helping out to speed-up Linux kernel build times to make for a quicker and more manageable kernel bisecting experience, here is a look at some of the results for the Linux 6.19 performance regressions.



AMD EPYC Embedded 2005 Series Announced For BGA Zen 5 CPUs

([Processors] 8 Hours Ago 2 Comments)

AMD today announced their newest member of their expansive EPYC family: the EPYC Embedded 2005 series. The new AMD EPYC Embedded 2005 Series are intended primarily for networking, storage, and industrial devices while these BGA processors will likely see other interesting thin-server uses as well.



Microsoft Has Many Hyper-V Virtualization Improvements For Linux 6.19

([Microsoft] 9 Hours Ago Linux 6.19 Hyper-V Improvements)

For benefiting their Azure cloud and other users of Hyper-V virtualization at large, Microsoft has rolled out a number of feature additions and improvements for their Hyper-V kernel code in Linux 6.19.



Bug-Catching "Smatch" Static Analysis On The Linux Kernel Under Threat Due To Funding Gap

([Linux Kernel] 12 Hours Ago Smatch Static Analysis)

For the past 15 years the Smatch static analysis tool has been routinely run for uncovering countless bugs within the Linux kernel. Dan Carpenter who authored Smatch and has been routinely analyzing the Linux kernel with it has authored more than 5,568 patches over the years to become one of the top bug fixers for the kernel. But his funding at Linaro has been cut and the project's future now in question.



Linux 6.19 Enables Per-CPU BIO Caching By Default For Helping Performance

([Linux Storage] 12 Hours Ago File-System Performance)

Last week saw the main set of block and IO_uring feature patches for the Linux 6.19 merge window but some additional block subsystem material was merged on Monday. There are various NVMe updates now merged plus enabling per-CPU BIO caching by default to help with file-system performance.



F2FS Brings More Performance Optimizations To Linux 6.19

([Linux Storage] 12 Hours Ago F2FS Optimizations)

The Flash-Friendly File-System "F2FS" is enjoying more performance optimizations and other improvements for the Linux 6.19 kernel cycle.



Rust-Based Project Aims To Provide Modern Thumbnails For Audio/Video Files On GNOME

([GNOME] 8 December 08:42 PM EST gst-thumbnailers)

Since Showtime replaced Totem as the default video player of GNOME, the desktop has lacked thumbnail capabilities for audio and video files. But to address that defect, the Rust-based gst-thumbnailers project has been in development to leverage GStreamer and paired with Rust to provide safe thumbnail generation capabilities for audio and video content.



Mesa 26.0 Lands Initial Support For Adreno Gen 8 - Including For The Snapdragon X2

([Mesa] 8 December 08:21 PM EST Freedreno Gallium3D)

The newest Mesa 26.0-devel code as of today has landed initial support for Qualcomm Adreno Gen 8 graphics into the Freedreno Gallium3D driver. The Adreno Gen 8 graphics so far are most notably used by the new Snapdragon X2 Elite laptop SoC with its X2-85 GPU as well as the new Snapdragon 8 Elite Gen 5 with Adreno 840 graphics.



Linux 6.19's Hung Task & System Lockup Detectors Can Provide Greater Insight

([Linux Kernel] 8 December 04:00 PM EST More Dumping)

Beginning with the Linux 6.19 kernel, the hung task detector and system lock-up detector are now optionally able to provide greater insight into the issues by dumping additional system information. The new lockup_sys_info and hung_task_sys_info sysctl knobs were merged over as part of the pull requests managed by Andrew Morton.



Live Update Orchestrator "LUO" Merged For Linux 6.19

([Linux Kernel] 8 December 03:17 PM EST Live Update Orchestrator)

Google engineers for the past number of months have been working on the Live Update Orchestrator as a new way of applying live Linux kernel updates. The Live Update Orchestrator "LUO" builds atop the Kexec Handover "KHO" functionality already within the kernel. Google has since been deplyoing LUO in their production environments for faster security updates to kernels, especially when involving VMs. LUO is now upstream in Linux 6.19.



Meson 1.10 Build System Adds OS/2 Support, Experimental C++ "import std"

([Programming] 8 December 01:22 PM EST Meson 1.10)

Meson 1.10 is out today as the newest feature release for this popular cross-platform build system.



Firefox 146 Now Available With Native Fractional Scaling On Wayland

([Mozilla] 8 December 11:24 AM EST Firefox 146)

The Mozilla Firefox 146.0 release binaries are now available with a very exciting improvement for Linux users relying on Wayland.



Intel Arc B580 vs. AMD Radeon RX 9000 vs. NVIDIA RTX 50 Series For Llama.cpp Vulkan Performance

([Display Drivers] 8 December 10:50 AM EST 10 Comments)

Recently there were Phoronix benchmarks looking at the Intel Battlemage GPU compute performance since last year when the Arc B580 graphics card launched as well as the OpenGL and Vulkan graphics performance for the B580 on Linux since launch. There was much progress on the open-source Intel Linux graphics drivers at large this year but especially for Battlemage. Following that a Phoronix Premium reader asked about seeing some fresh Llama.cpp AI benchmarks with its Vulkan back-end now for the Arc B580 compared to competing AMD and NVIDIA graphics cards. Here are those benchmarks as requested.



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