Phoronix

For those not yet on the GCC 11 or GCC 12 stable series, GCC 10.4 is out today as the latest in that older stable series...

A "sched/fair" scheduler change queued this morning into TIP's sched/core for Linux 5.20 aims to enhance the efficiency when searching for an idle CPU under heavy system load. The change led by Intel should improve the kernel's efficiency when the system is overloaded but as with most low-level tuning does run the risk of regressions...

A decade after Luc Verhaegen started the Lima driver effort for reverse-engineering Arm Mali graphics, developers continue occasionally working on improvements to this Gallium3D driver for older generations of Mali hardware. The most recent feature work is finally enabling 4x MSAA support...

Last month for their Vision conference, Intel announced the Habana Labs Gaudi2 accelerator. Gaudi2 is the second-generation offering from Intel-owned Habana Labs for training and inference. The open-source Linux kernel driver support for Gaudi2 is now getting underway along with accompanying open-source user-space software stack support...

Git 2.37 is out today as the latest feature update to this widely-used, distributed revision control system...

The Rust-GCC front-end that allows Rust code to be compiled with the GNU Compiler Collection (GCC) could possibly be upstreamed for next year's GCC 13 compiler release but not necessarily complete at that stage. In any case, it's good seeing progress on Rust-GCC as an alternative to Rust's official LLVM-based compiler...

Merged today to Mesa 22.2 was a four month old merge request for the open-source Radeon Vulkan driver "RADV" that significantly improves the 16-bit FidelityFX Super Resolution (FSR) performance...

Coming about last week was a Fedora 37 change proposal to improve the profiling and debugging of Fedora packages but with possible performance costs. That suggested change is about adding "-fno-omit-frame-pointer" to the default CFLAGS/CXXFLAGS when building packages so the frame pointer is always available for improving the debugging/profiling of the stock Fedora packages. Unfortunately, it can come with significant performance costs as these benchmarks show.

One of Intel's many wonderful open-source projects for creators is OSPRay Studio that is their interactive visualization and ray-tracing application built atop their OSPRay portable ray-tracing engine. OSPRay Studio has been making steady progress since its 2020 debut and out today is their newest update...

The Firefox 102.0 release is now available for download ahead of its stable release announcement tomorrow...

Google engineers are working on the notion of "memory modes" for the Flash-Friendly File-System (F2FS) with the intent on introducing a "low memory" mode for storage devices that would alter its behavior. Presumably Google is working on this new F2FS feature for low-end Android devices...

Linus Torvalds just released Linux 5.19-rc4 as the newest weekly test candidate. There are more patches this week than in the prior Linux 5.19-rc versions but nothing too scary as well as having some notable patches in tow...

Jens Axboe, Linux storage expert and IO_uring lead developer, released liburing 2.2 this weekend as the newest version of this helper library that makes it easier for user-space software to make use of the Linux kernel's IO_uring support...

NVIDIA has contributed support to the FFmpeg multimedia library for being able to take advantage of AV1 GPU-accelerated video decoding by way of the VDPAU API when using the latest-generation NVIDIA RTX 30 "Ampere" GPUs...

Last month Microsoft issued the first production release of CBL-Mariner 2.0, its in-house Linux distribution used for powering services from Microsoft Azure to WSL use-cases and more. CBL-Mariner 2.0 this weekend saw a rather large monthly update with a number of fixes, package updates, and new additions to this "Common Base Linux" platform...

Shotcut remains one of the leading open-source, cross-platform video editors built atop the MLT Multimedia Framework with FFmpeg. Out this week is Shotcut 22.06 as the newest feature update to this non-linear video editing solution...

2022 is certainly looking to be interesting on the open-source graphics driver front... You probably didn't have Imagination publishing an open-source PowerVR Vulkan driver on your 2022 bingo card nor NVIDIA working on an open-source GPU kernel driver. The latest 2022 surprise is the OpenChrome driver project is hoping to finally be mainlined in Linux 5.20 for open-source VIA graphics for those still running vintage VIA x86 hardware...

LLVM developers are eyeing Zstandard "Zstd" use within this compiler stack as a secondary compression method to Zlib. Zstd could be used for compressing ELF debug sections, AST data structures, and other purposes within this open-source compiler stack...

While Arch Linux itself is quite easy to get setup these days thanks to Archinstall for a quick installation process and sane defaults, for those looking for a nice and polished experience EndeavourOS remains one of the nice Arch-based desktop Linux distributions...

KDE released Plasma 5.25.1 this week with the first batch of bug fixes to the Plasma 5.25 desktop while yet more fixes are coming down the pipe to Plasma and other KDE software components...

Intel's open-source Linux graphics driver developers remain very busy preparing the open-source driver stack for Arc Graphics DG2/Alchemist hardware. While much of the base enablement work is complete and now with Linux 5.19 the compute support is even exposed to user-space, one of the areas seeing more work in recent times has been around power management...

One of the great defaults when installing Pop!_OS or receiving a pre-loaded laptop/desktop from System76 or the new HP Dev One is that it encourages full-disk encryption and prominently shown during the install process. I highly recommend full-disk encryption especially for laptops. As it's been a few years since running benchmarks looking at the overhead of LUKS encryption, here are some benchmarks of Pop!_OS 22.04 on the HP Dev One with the full disk encryption enabled and then a fresh install without encryption.

While many Red Hat open-source projects end up being relatively instant successes that then end up being widely adopted in the open-source community, Red Hat's Stratis Storage effort seems to be trending as one of the exceptions. Red Hat continues investing in Stratis but it doesn't seem to have the sizable adoption or widespread interest that tends to come with most of their projects. In any event, Fedora 37 later this year should ship with the newest Stratis tech...

Google's Stadia cloud gaming service since its 2019 launch has relied upon custom Vega-based GPUs in their Linux servers but now it looks like they may be quietly transitioning to using NVIDIA GPUs...

Following this week's Chrome 103 release, Google has now promoted Chrome 104 to beta...

With the recent release of Ubuntu 22.04 LTS it is shipping systemd-oomd by default on their desktop for trying to better handle low-memory / out-of-memory situations. However, in real-world use systemd-oomd is too easily killing user-space applications like Firefox and Chrome when approaching memory pressure. This is a poor Ubuntu 22.04 user experience but the developers now have an idea for their approach to addressing this solution...

Fedora developers are weighing adding an option to the default compilation flags for Fedora 37 that can enhance the performance profiling and debug-ability of generated packages but possible performance overhead implications -- possibly a few percent based on prior figures...

Stemming from a recent reader request around seeing some fresh OpenJDK performance benchmarks, here are benchmarks of OpenJDK 9 through OpenJDK 18 plus the early access OpenJDK 19 builds. Additionally, OpenJ9 and GraalVM CE were tossed in as alternative implementations.

A set of patches have been posted for making the "-O3" compiler optimization level more easily accessible when building the Linux kernel but still it's not recommended and some kernel developers do not even want to see it as a Kconfig option...

This week's DRM-Misc-Next pull request was sent out of new DRM changes ready for queuing ahead of Linux 5.20. There isn't too much to get excited about for this week's code updates going to DRM-Next, but there is "fbcon: Improve scrolling performance" that did get my attention...

From 2011 to 2017 while Ubuntu had been using the LightDM display manager developed by Canonical, their engineers were actively supporting it and making new releases to coincide with new Ubuntu Linux updates. But with Ubuntu now using GDM as its default desktop display manager, there hasn't been a new LightDM release in three years and not much in the way of upstream activity. Today Canonical's lead LightDM maintainer issued a status update for the project...

The first beta of Krita 5.1 for this leading open-source digital painting program is now available for testing...

Adding to the list of features slowly building up that will be destined for the Linux 5.20 cycle, Jens Axboe has queued up the support for async buffered writes with XFS when using IO_uring can deliver some significant performance advantages...

OpenZFS 2.1.5 was released this afternoon as the newest maintenance release for this open-source ZFS file-system implementation that currently works on Linux and FreeBSD systems...

Last year I signed up for SpaceX's Starlink satellite Internet service with hopes of using it to replace the Internet connection used for running Phoronix. After months of using Starlink and carrying out thousands of benchmarks, Starlink in the US midwest / Chicagoland area has proven reliable but the performance can be rather volatile still and it was frustrating at first waiting for some Starlink accessories to ship, but the self-service nature and simplicity of the setup were great.

Back in March there were Linux kernel patches posted for review to boot Linux on the Nintendo Wii U game console after this Linux porting work has long been done out-of-tree. A new iteration of those Wii U enablement patches for the Linux kernel have now been posted...

Wine developers have released VKD3D 1.4, the newest version of their Direct3D 12 on Vulkan implementation that is useful with Wine for enjoying newer Windows games on Linux...

After AMD announced FidelityFX Super Resolution 2.0 back in March, as of today they have made good on their word to open-source it...

The open-source Mesa "R600" Gallium3D driver for supporting AMD graphics processors prior to the Radeon HD 7000 series, a rewritten NIR back-end has been published that enables better performance and proper FP64 usage...

With the AMD Radeon "HIP" acceleration in Blender 3.2 with the Cycles back-end, an unfortunate early limitation is that this is limited to just AMD RDNA2 (Radeon RX 6000 series) graphics processors while prior generation RDNA1 GPUs have issues with some textures like those used in the benchmarks. This week though AMD did post a new patch for Blender enabling HIP support on Windows and Linux for Vega/GFX9 graphics...

One of the multi-year efforts in the GNOME Wayland camp has been on deep color support and it's been of interest to Ubuntu developers among other parties. After not hearing about any progress on GNOME Wayland deep color support in a while, some progress is now being made...

Merged yesterday into Linux 5.19 as a post merge window change is making the kernel's signature verification code FIPS compliant...

AMD today released a new update to AMDVLK, their official open-source Radeon Vulkan driver for Linux systems that is derived from their internal Vulkan driver sources while plumbed to use the open-source LLVM AMDGPU shader compiler back-end. For Linux gamers this driver doesn't remain as popular as Mesa's RADV but the update today does deliver on some game performance optimizations...

Google today released Chrome 103 as the newest monthly feature update to its cross-platform web browser...

The PCI SIG today announced the PCI Express 7.0 specification that doubles the data rate to 128 GT/s and should be released to members in 2025...

To complement the AMD HIP, NVIDIA CUDA, and NVIDIA OptiX acceleration in Blender 3.2, Intel engineers are still hoping to have their Intel oneAPI SYCL support ready to premiere in Blender 3.3 for Intel GPU-based Cycles acceleration with Intel integrated and discrete graphics processors...

It's been known for a while that The Khronos Group and its Vulkan working group has been working on a cross-vendor extension for mesh shaders akin to what is offered already by Direct3D 12 and with NVIDIA by their VK_NV_mesh_shader extension. A few more details about the forthcoming Vulkan mesh shader support were detailed today...

Last week Feral Interactive released Total War: WARHAMMER III for Linux as a native port of this game that debuted earlier this year on Windows. This latest Total War game port to Linux by Feral relies on the Vulkan API for graphics and comes with a modest system requirements. For those curious about the performance of this latest high profile game port, here are benchmarks across 24 different AMD Radeon and NVIDIA GeForce graphics cards on Ubuntu Linux.

RISC-V International announced their first batch of new specifications for 2022. This includes approving of Efficient Trace for RISC-V (E-Trace), RISC-V Supervisor Binary Interface (SBI), RISC-V UEFI, and RISC-V Zmmul multiply-only extensions...

At the Embedded World conference happening this week in Nürnberg, Think Silicon is showing off the first production RISC-V 3D GPU design...