Phoronix

AMD has carried out a timely release of their RDNA 2 ISA documentation for those interested in working on any compiler support around these very latest graphics processors or working on other shader optimization approaches, etc...

A new SDL2 library release is being prepared for this widely-used, cross-platform abstraction layer popular with games for supporting a wide range of input devices / peripherals and other vast subsystem coverage in a portable manner...

There have been many workarounds and changes to the SDMA (System DMA) copy support within the RadeonSI Gallium3D driver since the support was introduced years ago, but it's now been outright removed due to too many generations of AMD Radeon hardware having issues with it enabled...

QEMU 5.2 was released on Tuesday as the latest feature release for this open-source processor emulator that plays an important role in the open-source Linux virtualization stack...

Intel's Deep Neural Network Library currently known as oneDNN as part of the oneAPI suite (and formerly known as MKL-DNN and DNNL) has reached version 2.0 as an open-source project...

The open-source Intel Graphics Compiler (IGC) that is currently used by their oneAPI Level Zero and OpenCL implementations but likely to see Intel driver Mesa usage in 2021 has a new feature dubbed "IMF LA" that aims to help with the performance and close the gap with Windows...

Four years after Google began developing the "Fuchsia" operating system complete with its own kernel, Google is now becoming more open with Fuchsia development and also accepting community code contributions...

Back in October RISC-V minded startup SiFive announced the HiFive Unmatched development board as the best RISC-V development board we've seen to date. But only having 8GB of RAM was one of the few critiques which the company is now addressing...

Well here is a surprise for those that have long used CentOS as the community-supported rebuild of Red Hat Enterprise Linux... CentOS 8 will end in 2021 and moving forward CentOS 7 will remain supported until the end of its lifecycle but CentOS Stream will be the focus as the future upstream of RHEL...

After the Radeon RX 6800 series launched just under a month ago, the flagship AMD Radeon RX 6900 XT is launching today. This is currently the most powerful RDNA 2 graphics card and should work under Linux with the open-source driver stack but the card is likely to be scarcer than even the RX 6800 series...

The Qt Company has officially released Qt 6.0 as the latest major release to this open-source, cross-platform toolkit...

With the Linux 5.10 kernel expected to be released this weekend, here is a look at some of the most interesting changes and new additions. Besides being the last kernel release of 2020, Linux 5.10 is significant in that it's also serving as a Long Term Support (LTS) release...

After Zen 3 support was sent out and merged into GCC 11 last week, the LLVM Clang compiler support has now been published for this newest member of the AMD Zen family...

The set of MSM DRM driver improvements have now been submitted to DRM-Next that are targeting the Linux 5.11 merge window for enhancing the Qualcomm Adreno mainline kernel graphics driver support...

GNU Bash 5.1 was released on Monday as the newest feature release to this popular POSIX shell implementation with many extra features...

HP today announced a new Ubuntu Linux offering for select mobile workstations and notebooks in the form of the "Z by HP Data Science Software" package. This isn't just pre-loading the Ubuntu 20.04 LTS OEM version on the notebook but calling it a day, rather it's been pre-loaded as well with a variety of data science software packages...

Proton 5.13-3 is out today as the latest version of this Wine downstream that powers Valve's Steam Play for running Windows games rather well on Linux...

One of the NVMe specification additions that was ratified this year is the "simple copy" command that allows for copying multiple contiguous ranges to a single destination. That simple copy operation is offloaded to the SSD controller. The Linux kernel support for NVMe simple copy is now being prepared...

Vulkan 1.2.164 is out today with the usual assortment of documentation fixes/clarifications plus two new extensions...

While most hardware vendors don't support Linux to the extent that any products with configurable RGB lighting controls will officially be supported, OpenRGB has been one of the successful community projects for allowing many different devices to enjoy configurable, cross-vendor. and open-source RGB lighting controls...

For those that may find their hands on an Intel Tiger Lake laptop this holiday season with the "Gen12" Xe Graphics, here are some Linux OpenGL/Vulkan benchmarks in varying driver configurations if you are left wondering whether it makes sense upgrading your kernel or Mesa for better performance...

The Webboot project has been in development now for more than one year as an easy means of booting Linux ISO images from the web. From this minimal boot environment users can configure their network connection and download a new ISO or use a pre-existing ISO. From there Webboot allows kexec'ing into that ISO for booting it up...

Back in October there were engineers from Tencent proposing DMEMFS as the "Direct Memory File-System" for Linux. DMEMFS is about reserving some RAM that is not managed by the kernel to avoid that overhead and in turn expose it directly to virtual machines in the cloud. Those initial DMEMFS kernel patches have now been updated by Tencent as they continue working to get this functionality into the Linux kernel...

With my testing of the Radeon RX 6800 series graphics cards last month it's been off Linux 5.10 (aside from when using the Radeon Software for Linux package driver) due to the Linux Git state often offering the best performance and features particularly for brand new hardware. As mentioned in the launch day article for the RX 6800 / RX 6800 XT, there was also an issue being encountered on Linux 5.9. Fortunately, that bug is indeed fixed with the recently released Linux 5.9.12 kernel...

The Valve-backed ACO shader compiler for Mesa's Radeon Vulkan "RADV" driver has been an enormous success story where this year it's been the default as opposed to AMD's officially supported AMDGPU LLVM shader compiler back-end as pretty much for all major Linux gaming workloads is delivering superior performance. RADV+ACO performance has been so great that gamers have been eager to see the RadeonSI Gallium3D driver also adapted to see ACO as an option to the same AMDGPU LLVM back-end. Well, experimental patches have finally materialized...

While for a while the Linux 5.10 development was trending concerningly high on changes late in the cycle, 5.10-rc7 is out today and Linus Torvalds appears comfortable in planning to release the 5.10 kernel next weekend...

While the Debian 11 "Bullseye" freezes don't get started until January, the Debian Installer for Bullseye has been in alpha for just over a year. Today marks the third alpha release of the Debian Installer for Bullseye...

Given all the headaches and concerns from the early days of UEFI SecureBoot, for longtime Linux users hearing Microsoft is working on another firmware-level standard in the name of security may raise concerns... Microsoft in conjunction with Intel has been spearheading the Platform Runtime Mechanism (PRM) that is about moving more code out of the System Management Mode (SMM) and executing it within the OS/VMM context. PRM remains a work-in-progress but the Windows support is already ready within Windows Insiders builds while the Linux support will come after the ACPI specification around it has been finalized...

Following last month's Phoronix Test Suite 10.2 Milestone 1 development release that brought many improvements to our open-source, cross-platform automated benchmarking software a second development release is now available...

One of the surprises this year in the Linux kernel world was Paragon Software wanting to upstream their "NTFS3" kernel driver that supports read-write operations on Microsoft NTFS file-systems and is much more full-featured than the existing read-focused NTFS kernel driver or the user-space NTFS FUSE driver. The driver hasn't yet been mainlined but continues to be updated in preparing for that milestone...

Dell's Linux engineers continue working on improving the Linux kernel's handling around S0ix ACPI sub-states for greater energy savings...

Better support for Microsoft Surface laptops on Linux is slowly coming to the mainline kernel...

PureLiFi, one of the leaders when it comes to Li-Fi for high-speed, light-based wireless technology, has been spending the past few months bringing up their open-source Linux driver to the mainline kernel for their devices...

Well before Intel bought out AI startup Habana Labs this company with their compelling AI training and inference accelerators has been maintaining an open-source kernel driver in the Linux kernel. That has fortunately continued under Intel's ownership to no surprise and coming up with the Linux 5.11 cycle are more improvements to this accelerator driver for both the Gaudi AI Training and Goya AI Inference products...

After a long run and being one of the early boutique Linux PC vendors, California-based laptop/desktop/server vendor ZaReason is the latest casualty of the COVID-19 pandemic...

Debian 11 is starting its release dance next month with the initial transition and essentials freeze while the actual stable release should make it out later in the year. For now Debian 10 remains the current stable series and this weekend marks the debut of Debian GNU/Linux 10.7...

Coming to the Linux 5.11 is the Auxiliary Bus infrastructure that allows creating an auxiliary device and binding an auxiliary driver to it. This is for a new core driver feature around increasingly complex devices that rely upon several drivers for support/operation...

Earlier this week I looked at the Spectre mitigation performance impact on AMD Zen+ / Zen 2 / Zen 3 processors given the recent launch of the Ryzen 5000 series and those newest CPUs still requiring some mitigation handling. Questions were raised about the Spectre mitigation handling on Windows, so I ran some quick tests there as I happened to have a Windows 10 install on the Ryzen 9 5900X test box at the moment for some unrelated Windows vs. Linux gaming...

A few days ago AMD finally sent out the initial AMD Zen 3 "znver3" support to the GCC compiler with the LLVM Clang support to follow. That initial "-march=znver3" targeting support has now been merged for GCC 11...

Following yesterday's release of Wine 6.0-RC1 that is kicking off the release process for this annual release of Wine, the Wine-Staging experimental/testing blend of Wine is also updated...

Wasmer is one of the leading software solutions aiming to bring WebAssembly (WASM) to the desktop rather than largely isolated to the web browser as is the case now. Wasmer aims to allow WASM programs anywhere and on any client while quickly closing in on its 1.0 release...

KDE developers have been busy so far in December making improvements from seemingly never-ending Wayland improvements to new features like easier support for accented character input without having to remember key sequences or changing your keyboard layout...

While the Linux kernel has supported Kernel Address Space Layout Randomization (KASLR) for a decade and a half in varying forms, it hasn't been supported for all hardware targets. Only in 2021 is the mainline Linux kernel seeing KASLR working for the MIPS-based Loongson64 platform...

As expected, the first release candidate of Wine 6.0 is now available for testing for this annual update to Wine for running Windows programs and games on Linux and other platforms...

Just in time for any holiday Raspberry Pi purchases, an updated Raspberry Pi OS is available today for the Debian-based Linux distribution optimized for these budget ARM SBCs...

Google today is announcing the open-sourcing of Atheris, a Python fuzzer they developed internally for automatically finding bugs within Python code and native extensions...

Last week I provided some benchmarks looking at the IBM POWER9 mitigation for the L1 data cache needing to be flushed upon entering the kernel and on user accesses due to a recently disclosed vulnerability. POWER9 allows speculatively operating on validated data in the L1 cache, but when it comes to incompletely validated data paired with other side channels it could lead to local users potentially obtaining improper access to data in the L1 data cache. When benchmarking the impact on a POWER9 4c/16t CPU the overall impact was fairly modest while since then I fired up some benchmarks as well on a large POWER9 server with 44 cores / 176 threads to see the performance impact of this default Linux kernel change.

For the "Video Core Next 2" hardware like Navi as well as Renoir APUs, HEVC "sample adaptive offset" support has landed in Mesa 21.0...

Pacman, the excellent package manager on Arch Linux, is working on becoming even more compelling with the in-development Pacman 6.0...

The Fedora Engineering and Steering Committee (FESCo) approved a fresh batch of changes this week for Fedora 34 that is due out next spring...