Phoronix

Calculate Linux has now issued its v23 release as the project marks fifteen years of being a Gentoo Linux built distribution focused on suitable Linux deployments within organizations / corporate environments...

Merged just over a year ago into the Linux kernel was DAMON as an Amazon-developed solution for monitoring data accesses. In the year since being merged, DAMON has continued to see more functionality added and new users and developers becoming involved with this data access monitoring...

With the end of the year upon us it's a great time to see how the Windows vs. Linux gaming performance is looking as we enter 2023. In particular, it's interesting on the AMD Radeon side with the open-source Linux graphics driver stack having made great gains this year thanks to the continued investment by AMD and heavy contributions by Valve to the Mesa RADV Vulkan driver that is used by the Steam Deck and commonly in general by Linux gamers. Here is a look at the Windows vs. Linux GPU performance both for the mature RDNA2 support as well as the recently-released RDNA3 graphics.

Valve developers investing heavily into the open-source 3D graphics driver stack, AMD continuing their big contributions to Mesa, the Apple AGX Gallium3D driver taking shape, Microsoft continuing to leverage Mesa for various purposes on Windows, Zink maturing for OpenGL atop Vulkan, and other efforts all culminated with the most ever code growth to Mesa in a single year as well as nearly the most ever commits to this 3D graphics driver project...

Earlier this month prolific open-source GPU driver developer David Airlie at Red Hat picked up work again on Vulkan Video support for the RADV driver. Initially that RADV Vulkan Video work was focused on H.264 and H.265 video decoding while since then he has shifted focus to preliminary video encode support with H.264...

When the Retbleed security vulnerability was introduced earlier this year mitigating it for Intel Skylake and Skylake-derived CPU cores required imposing Indirect Branch Restricted Speculation (IBRS) that further tanked the out-of-the-box performance for these aging Intel CPUs. But being introduced now with Linux 6.2 is a new mitigation technique named Call Depth Tracking that is helping recover some of that lost performance and in turn extending the usefulness of the Skylake-derived processors still in service.

More than a few Phoronix readers have written in that have been early adopters to the Linux 6.1 kernel released as stable earlier this month and now finding their HDMI audio outputs no longer working. Fortunately, the issue has been sorted out by upstream developers and a fix is on the way...

OpenCV 4.7 was released today as the newest version of this widely-used, open-source computer vision library...

With the end of the year upon us, it's interesting and fun running GitStats on various prominent open-source projects and looking at some of the key growth metrics over the past year. Here is a look at how systemd's Git activity has paced in 2022 compared to years prior...

LLVM's GPU/device offloading support continues to advance and this open-source compiler stack has now added basic JIT (Just In Time) compilation support to its OpenMP offloading capabilities...

Following yesterday's article looking at the performance of Intel's Clear Linux running on AMD EPYC 4th Gen "Genoa" with great performance results even though Clear's kernel was limited to 320 of the 384 available logical CPU cores for the EPYC 9654 2P setup, the kernel has now been adjusted to handle up to 512 CPUs...

Now that the merge window for Linux 6.2 is over, here is a look at all the prominent features on deck for the Linux 6.2 kernel that will be released as stable in about eight weeks.

Updated patches were sent out today that aim to reduce the maximum memory usage while compiling the Linux kernel. In turn for memory constrained systems that attempt to compile the kernel this should lead to less swapping and faster build times...

The Restartable Sequences "RSEQ" system call merged a few years ago into the Linux kernel and is now used by the GNU C Library and friends for faster user-space operations on per-CPU data. Now coming next year with Linux 6.3 is set to be some notable additions to the RSEQ support...

Intel engineer Huang Ying sent out a set of patches today to implement batch TLB flushing for page migration within the migrate_pages() function and is showing very promising results...

For a long while there has been requests for having a dark mode version of Phoronix.com available for reading content that matches your system's dark theme. The lightened work around Christmas and the holidays finally allowed for me to tackle that sought after feature with CSS dark mode integration...

Intel engineers had submitted support for Linear Address Masking (LAM) with the recently-closed Linux 6.2 merge window but it was rejected by Linus Torvalds. In working toward re-submitted it for the v6.3 cycle or later, an updated Linux LAM patch series was posted today...

Ahead of the early February planned debut of the LibreOffice 7.5 open-source office suite, the release candidate was made available today for testing...

Similar to the great results of Intel's performance-optimized Clear Linux on the Ryzen 9 7950X, making use of Clear Linux on the new 4th Gen EPYC "Genoa" processors also helps in maximizing performance for these AVX-512 server processors. Here are some initial benchmarks.

With the in-development Linux 6.2 kernel there is the new compute accelerator "accel" subsystem/framework as part of the Direct Rendering Manager area. The creation of that new subsystem was pulled together by Intel (Habana Labs) and now their AI accelerator driver is preparing to move from the "char/misc" catch-all to this new subsystem...

As a long awaited gift for those using UBports' Ubuntu Touch, for Christmas the open-source, community-driven crew published a beta/RC build of Ubuntu Touch re-based atop Ubuntu 20.04 LTS...

A few months back we looked at the Solidigm P41 Plus NVMe SSD from this company that formed when SK hynix acquired Intel's NAND/SSD business. The P41 Plus was a budget-friendly consumer SSD with QLC memory while recently they launched the P44 Pro as a step-up and based on the SK hynix Platinum P41 design. I've been testing the Solidigm P44 Pro 1TB and 2TB PCIe 4.0 NVMe SSDs under Linux to great performance.

While the Linux 6.2 kernel merge window just wrapped up, AMD's P-State EPP driver was deemed not ready for making it this cycle. However, with AMD having now iterated it to a ninth revision, it's looking like this P-State "Energy Performance Preference" functionality over the existing P-State driver support will be ready for merging come Linux 6.3...

The xf86-video-modesetting work covered a month ago over "TearFree" page flipping support has been merged to the X.Org Server for whenever the next release ends up happening...

It's been one year and a few days since the introduction of Mold 1.0 as a high performance linker alternative to GNU Gold and LLVM LLD while debuting today is Mold 1.8 as the newest feature release...

Prior to the holiday weekend Qualcomm engineers posted a set of "request for comments" Linux kernel patches to implement USB audio offloading support for Qualcomm SoCs with a dedicated audio DSP...

Following the two week long Linux 6.2 merge window colliding with Christmas day, Linus Torvalds just released Linux 6.2-rc1 as capping off the merge window and moving on to the testing and bug fixing phase of this release cycle...

Sway 1.8 is out this Christmas as the newest feature release to this i3-inspired Wayland compositor...

Ruby programming language developers have issued a Christmas release of the latest iteration of this language focused on simplicity and productivity...

The IRQ pull request that was merged early in the Linux 6.2 cycle has a big rework to the Message Signaled Interrupts (MSI) subsystem...

Merry Christmas and Happy Holidays to all those celebrating at the end of 2022 as we get ready for the New Year...

A request for comments patch series sent out by AMD Linux graphics driver engineers ahead of the holidays is implementing support for user-mode queues in conjunction with Radeon RX 7000 "Navi 3x" graphics cards and newer...

After two years of work, the Serpent OS Linux distribution has released its first public image for this innovative and original open-source operating system...

Among many open-source software project releases timed for the holidays is Manjaro 22.0 now being available for this popular desktop distribution built atop Arch Linux...

Christmas week didn't slow down KDE developers with there still being a number of features and fixes for this open-source desktop environment to land...

It was back in July 2021 that Haiku R1 Beta 3 was released for this spiritual successor to the BeOS operating system. Now before Christmas and closing out 2022, Haiku R1 Beta 4 has been released as the latest major milestone for this open-source operating system effort...

As a timely gift to programmers using the speedy and very successful Meson build system, the Meson 1.0 stable release has debuted just in time for Christmas. Besides the holiday, today is also notable in marking ten years to the day since Meson started development...

While AMD provided upstream open-source driver support for the Radeon RX 7900 series launch, the initial user experience can be less than desirable if running a new Radeon GPU but initially running an out-of-date kernel or lacking the necessary firmware support. With a new patch series posted AMD is looking to improve the experience by being able to more easily fallback to the firmware frame-buffer when their AMDGPU kernel graphics driver fails to properly load...

A change proposal to be evaluated still by FESCo would help ensure that system shutdowns and reboots can happen faster on Fedora Linux...

Embark Studios has released a new version of Rust-GPU that has a goal of making Rust a first-class programming language and ecosystem for GPU shader development...

If you are running the newest Intel Raptor Lake processors with integrated graphics and the latest Intel Arc Graphics discrete graphics cards under Linux, you are currently relying on the Intel "i915" DRM kernel graphics driver... As implied by the name, it's been used with Intel graphics going back to the old 915G chipset days nearly twenty years ago. But Intel has been working on a new "Xe" kernel graphics driver they have initially announced today and aim to make it production-ready in 2023 for supporting their modern Xe Graphics hardware...

Ahead of the Linux 6.2 merge window ending this weekend, a second batch of the perf subsystem changes have been submitted for this next Linux kernel version. Notable among the various additions to the powerful Linux kernel perf code is handling for various new performance monitoring events with new AMD Zen 4 processors...

The Qt Group has released Qt 6.5 beta just in time for Christmas as what will be their next toolkit feature release premiering as stable around the end of Q1...

Following the basic AMD Zen 4 "znver4" target enablement that was merged for the GCC 13 compiler in October, patches to begin providing tuned support have begun merging for this next GNU Compiler Collection release...

While this week saw the ratification of the Vulkan Video 1.0 extensions in stable form after being out as provisional extensions since early 2021, one of the sad aspects of it is still lacking support for the popular royalty-free VP9 and AV1 codecs. Fortunately, at least, it's been re-affirmed for VP9/AV1 support in 2023...

Fedora is looking at disallowing X.Org/XWayland clients of difference CPU endianness from connecting to the X.Org Server. Such a combination of different endianness between the X.Org Server and clients is rather rare these days but is yet another "large attack surface" of the X.Org Server that needs addressing...

Ampere Computing's SMPro is a system control processor that is an Arm Cortex-M3 serving as a co-processor and handles interfacing with the BMC, error handling, system booting, power fail detection, and other tasks. The SMPro is found starting with Ampere Computing's current Ampere Altra server processors while in Linux 6.2 a lot of its functionality is finally being upstreamed into the mainline Linux kernel...

OpenBMC 2.12 has finally been tagged as the first new version since January 2021 for this open-source, Linux-powered baseboard management controller (BMC) software stack...

Intel's OpenVINO toolkit for deep learning is out with a major release ahead of the holidays and now has full support for Xeon Scalable "Sapphire Rapids" as well as full support now for their discrete GPUs...

Following the Wine 8.0-rc1 and code freeze from earlier this month, Wine 8.0-rc2 is out today as an off-schedule-due-to-holidays release...