Phoronix

Since Intel's Alder Lake launch one of the test requests to come in a few times has been about the Intel P-State CPU frequency scaling driver and how its performance differs with the various governor choices available for altering the CPU frequency scaling behavior. Now that Linux 5.16 stable is out and running in good shape on Alder Lake, here are some Core i9 12900K benchmarks looking at various CPU frequency scaling choices and their impact on raw performance as well as CPU thermals and power consumption.

This will hopefully be the year that PipeWire becomes commonplace on the Linux desktop across all major distributions for audio/video stream management. But for as good as PipeWire is already, frequent point releases continue evolving the functionality and ironing out compatibility improvements for existing JACK and PulseAudio integration. PipeWire 0.3.44 is out today as another step in the right direction...

As of yesterday Intel's contributed Programmable Services Engine "PSE" support has been merged into mainline Coreboot for supporting this Arm-based dedicated offload engine found within select Intel processors...

One of Microsoft's Linux/open-source surprises for 2021 was publishing of CBL-Mariner as their internal Linux distribution used for a variety of purposes at the company. Microsoft has kept to updating CBL-Mariner publicly on a monthly basis and continuing to make it easier to test out and enhance its usefulness. Last night they published their January 2022 build of Microsoft's Linux operating system...

The DirectFB library had been a popular option for embedded systems in running off the Linux frame-buffer to avoid the full overhead of an X11 server. But a number of years ago DirectFB disappeared and ultimately stopped being maintained. Meanwhile Wayland has been making lots of inroads into mobile/embedded and areas once popular for DirectFB use. But now it turns out DirectFB2 is in development as a fork of the original DirectFB...

In addition to this week seeing Raptor Lake S support added for Mesa 22.0, the Alder Lake N additions have also been merged for this quarter's Mesa update...

Archinstall as the quick and easy-to-use installer for the Arch Linux distribution is out with a new point release delivering a few worthwhile enhancements to the text-based OS installer...

Intel's "i915" kernel graphics driver has been patched for a software issue that could lead to malicious user-space trigger DMAR read/write faults or worse is the possibility of user-space gaining access to random memory pages. Unfortunately, the security fix comes with performance implications...

After slipping from the original shipping target of Q4 due to component shortages, Valve is making good on their Q1'2022 shipping plans for the Steam Deck...

With today's SDL2 Git, Wayland is now preferred over X.Org/X11 by default without having to set the SDL video driver environment variable...

Yet another open-source Radeon Vulkan "RADV" driver improvement being worked on by Valve's engineers is around better controlling variable rate shading "VRS" behavior with a focus on improving power savings for the Steam Deck...

At the top-end of Intel's current Alder Lake line-up is the Core i9 12900K while at the opposite end is the Celeron G6900... The Celeron G6900 is a dual-core Alder Lake processor with a suggested customer price of $42~52 USD (though for the limited quantities available, I ended up paying $69). Curiosity got the best of me for seeing how well this lowest-end Alder Lake part performs under Ubuntu Linux.

AMDVLK as AMD's official open-source Vulkan Linux driver derived from their Radeon Software driver sources but using the LLVM shader compiler back-end is out with a new release. AMD is ready with day-after support for the newly-launched Vulkan 1.3 specification for AMDVLK...

As part of pushing it across the Vulkan 1.3 milestone, Intel's open-source graphics driver developers have merged their VK_KHR_dynamic_rendering support to mainline...

Microsoft's D3D12 Gallium3D code for Mesa 22.0 can now handle tessellations to expose GL_ARB_tessellation_shader in exposing OpenGL over Direct3D 12...

Rqlite 7.0 is now available as a lightweight, distributed relational database. This open-source database system for cluster setups is built atop SQLite while aiming to be easy-to-use and fault-tolerant...

In recent days Mozilla has begun activating Wayland support by default on Firefox Nightly for configurations capable of running Wayland...

GraalVM 22.0 has been released for this Java VM/JDK that also supports other programming languages and run-times / execution modes. GraalVM continues to be performant and showing promising results not just for Java with JIT'ing but also ahead-of-time Java compilation to Native Image as well as for its Python implementation, WebAssembly run-time, and other targets...

In addition to Mesa 22.0 landing Vulkan 1.3 support today with the Radeon RADV and Intel ANV Vulkan drivers, Mesa today also received initial support for next-gen Raptor Lake S processors...

It's crazy to think that in a few days it will already be six years since the debut of Vulkan 1.0, but here we are. The Khronos Group is continuing on their two year major update regiment for Vulkan and today debuting Vulkan 1.3 with more extensions moved to core as well as introducing a new "profiles" concept.