Phoronix

Intel engineers have posted the initial Linux kernel patches providing AVX-512 optimized versions of common crypto algorithms. The AVX-512 optimized versions do pan out and promise to offer huge speed-ups but are disabled by default at this stage over the negative CPU frequency/performance impact that running AVX-512 can have on CPU cores / shared threads...

Back in September Arm began talking about their "2020 extensions" for the A-profile architecture. Initial support for these new additions as ARMv8.7-A is beginning to land in the LLVM compiler stack...

Over the past nearly two months we have been running a lot of Linux benchmarks on the AMD Ryzen 5000 series, but what about the BSD operating systems with these Zen 3 desktop CPUs? Recently I got around to trying out a few of the BSDs on a Ryzen 9 5900X desktop as well as running some FreeBSD 12.2 vs. Ubuntu Linux benchmarks, including with Linux on OpenZFS and Clang.

For those running PostgreSQL database servers (and potentially similar workloads) on AMD EPYC servers, Linux 5.11 is bringing a very nice Christmas gift in the form of better performance for at least some 2P server configurations...

While the Linux 5.11 merge window is only half-way through with prominent pull requests like the DRM / graphics driver updates already have been merged some of the testing has already begun at Phoronix of this new kernel. With the Radeon RX 6800 XT "RDNA 2" graphics continuing to mature, we are seeing slight uplift in some benchmarks when moving from Linux 5.10 stable to Linux 5.11 Git...

As expected, the Wayland 1.19 release dance has begun...

The Fedora Project is the latest open-source software project working to migrate their Git repositories off using the existing default branch name of "master" and instead using "main" but for some repositories will be "rawhide" where it better aligns with the usage in Fedora Rawhide packages to their development development...

Lavapipe (nee Vallium) continues picking up more functionality for this software-based Vulkan implementation just as LLVMpipe is to OpenGL...

Arcan, the rather unique and innovative display server in development for about five years, is now matching or even surpassing the feature parity with the X.Org Server and have also issued a new release of their "Durden" desktop environment build atop Arcan...

The main feature change for the XFS driver code in Linux 5.11 is adding a new "needs repair" feature flag. When the XFS code marks a file-system as needing repair, it will refuse to mount until the xfs_repair operation is run on it...

Revealed earlier this year was the Arm Straight Line Speculation (SLS) vulnerability. SLS was a Google discovery for modern ARMv8 CPUs where speculative execution past unconditional changes in control flow could lead to information disclosure via side-channel analysis. Arm recommended compiler-based mitigations to insert speculation barriers after vulnerable instructions, which GCC and LLVM began adding opt-in protections right away. This weekend some additional SLS functionality was added for LLVM...

Building off Friday's release of Wine 6.0-RC3 is now an updated Wine-Staging build for those that want a more experimental/testing blend of Wine...

The KVM (Kernel-based Virtual Machine) changes were sent in today for the Linux 5.11 cycle...

It looks like Mozilla Firefox very soon will be enabling support for AVIF as the image format based on AV1 video coding...

After undergoing review the past several months, Intel's Platform Monitoring Technology (PMT) is merged with the Linux 5.11 kernel...

The pandemic isn't slowing down work on GNOME 40... In addition to this week's release of GTK 4.0, GNOME Shell developers continue progressing on some visible improvements slated for this 2021 desktop update...

Intel released a new version of their SPMD Program Compiler (ISPC) this weekend that brings new improvements for this compiler that supports a variant of C focused on single-program, multiple-data programming for Intel's CPU and GPU targets...

Announced back in 2018 by the MIPI Alliance was the I3C Host Controller Interface (HCI) 1.0 specification whereby a common I3C HCI driver could support a range of multi-vendor sensors and other components relying on I3C...

Taking many by surprise was the news last week of CentOS 8 being EOL'ed next year as what has been a popular downstream of Red Hat Entrprise Linux that is free of charge and often adapted for use within large organizations. Instead, IBM-owned Red Hat is looking to position CentOS "Stream" in front of RHEL as its upstream. That still isn't sitting over well for many and today is a new post on the CentOS Blog...

This first week of the Linux 5.11 merge window continues to be very active with many of the kernel maintainers looking to land their changes ahead of the Christmas week where they are often taking time off work...

Winter holidays haven't yet slowed down the pace of improvements for the KDE desktop stack. It was another busy week enhancing KDE Plasma and related desktop components with new functionality and fixes...

The Debian project's current website has arguably a rather dated look and feel but work is underway on modernizing the website to give it a fresh look. This week the project rolled out a redesigned homepage...

The Flash-Friendly File-System (F2FS) continues seeing new work around its transparent data compression, optional case insensitive behavior, and native encryption support with the new code queued for Linux 5.11...

Announced just over one month ago to the day was the AMD Instinct MI100 and as part of that the ROCM 4.0 software stack. ROCm 4.0 didn't end up actually shipping then but today its sources were uploaded and release builds made available...

There has been some early success geting Ubuntu up and running on Apple's M1 ARM hardware with using the Apple Hypervisor Framework but it looks like a much better experience is on the way with the forthcoming Parallels Desktop for Apple Silicon...

AMD noted that EPYC Milan "Zen 3" server processors would be shipping to select customers this quarter ahead of the formal launch in Q1. That's accurate with at least one enterprise now making public inquiries over Linux kernel versions for the EPYC 7003 series. The recent Linux 5.10 kernel debut being a Long-Term Support (LTS) release is coming just in time for those users...

The third weekly release candidate of Wine 6.0 ahead of the stable release expected in January...

With no new X.Org Server releases on the horizon but Red Hat / Fedora wanting to ship updated XWayland support that is developed as part of the X.Org Server code-base, Red Hat engineers are now stepping up to carry out such XWayland-only releases derived from the same source tree but stripping out the code not relevant to XWayland support...

In recent years Red Hat engineers have been contributing to WebRTC in Chromium and related projects as part of Wayland screen sharing support that also works with the likes of PipeWire and XDG-Desktop-Portal. Looking forward to 2021, more WebRTC improvements in Chromium/Chrome are on the way...

The OpenRISC and RISC-V processor architecture updates have both been submitted for the ongoing Linux 5.11 merge window...

Following last week's release of Qt 6.0, The Qt Company has now released Qt Creator 4.14 and Qt Design Studio 2.0 as accompanying assets...

The ACPI / power management and thermal pull requests were all sent out and merged this week for the ongoing Linux 5.11 development...

It's been seven years since Intel last provided a stable release of their "xf86-video-intel" X.Org driver and nearly six years to the day since they even provided their last development snapshot of what was to be xf86-video-intel 3.0. But there still are the occasional commits to this Intel DDX driver such as this week enabling the "TearFree" functionality by default...

Kent Overstreet who developed the Bcachefs file-system out of the Linux kernel's block cache code has sent out the latest patches for review and to also serve as a possible pull request for mainlining the code...

For the past several months we've seen Intel Key Locker support being worked on for Linux as a new feature coming to future processors for better securing AES keys. That initial Key Locker support was initially focused on the open-source compilers with the new instructions while now the Linux kernel patches have been published in preliminary form...

The networking subsystem updates have landed for the in-development Linux 5.11 kernel...

The Linux 5.11 merge window continues being very active this week with Linus Torvalds hoping kernel maintainers will get in all of their new feature code well before Christmas...

At the start of the month AMD released AOCC 2.3 as the newest version of the AMD Optimizing C/C++ Compiler. AOCC is one of several LLVM/Clang downstream versions maintained by the company with this one being about delivering flagship AMD Zen family compiler support. From an AMD EPYC 7002 "Rome" series processor I recently wrapped up fresh benchmarks of AOCC 2.3 against the current GCC 10 and Clang 11 compiler releases.

As part of the areas of the kernel overseen by Greg Kroah-Hartman is the USB subsystem. The USB (and Thunderbolt) updates are now in mainline as part of the ongoing Linux 5.11 merge window...

A new feature release of POCL is now available that is the "Portable Computing Language" offering OpenCL execution atop CPUs and other devices like NVIDIA CUDA that have an LLVM back-end...

The latest hardware enablement around Intel's Alder Lake for the Linux kernel is audio support...

The ARM64 architecture updates were sent in already for Linux 5.11 along with the various ARM SoC additions, DeviceTree additions for new hardware support, and similar changes. There is a lot of new hardware support as always being brought up by the mainline kernel...

Wayland 1.18 came back in February while until now there wasn't much talk about a "Wayland 1.19" since at this stage the core functionality of Wayland is quite mature and stable. But now work is underway on Wayland 1.19 with aims to likely ship it in January...

The input subsystem changes for the Linux 5.11 kernel have now been submitted and merged. Along related lines, the HID subsystem changes were also submitted with notable updates as well...

Mesa 20.3 shipped earlier this month while those waiting for the first point release to upgrade to this quarterly series can now safely make the shift as Mesa 20.3.1 was released today...

The previously reported on work for frequency invariance calculations for AMD CPUs with a focus on the AMD EPYC 7002 series has been merged for Linux 5.11 as part of the "sched/core" material...

GTK 4.0 has been officially released as the latest major iteration of this open-source toolkit...

UBports developers and the open-source community continue to push along Ubuntu Touch for smartphones/tablets. Ubuntu Touch still hasn't yet been able to complete the transition from Ubuntu 16.04 to a 20.04 base, but they have made other improvements and new device support with today's Ubuntu Touch OTA-15 release...

Last week we looked at the Windows vs. Linux performance on the AMD Ryzen 9 5900X where there was some very friendly competition and much closer results than we are used to seeing for modern, high-end x86_64 processors between the two operating systems. As a follow-up to that testing, here are results of Windows 10 October 2020 Update with Windows Subsystem for Linux (both WSL1 and WSL2) compared to the performance in turn off bare metal Ubuntu 20.04.1 LTS and Ubuntu 20.10 on the same system.

The latest Mesa 21.0 improvement is support for building Microsoft's Direct3D 12 Gallium3D driver code for Windows Subsystem for Linux 2 (WSL2)...