Linux 5.13 Lands More Fixes To The Mucked Up FPU/XSTATE Handling Mess

Earlier this month Linux 5.13 disabled Intel's ENQCMD functionality for upcoming Xeon "Sapphire Rapids" processors as the kernel software code around it was deemed "broken beyond repair". More of the recent Intel-submitted patches around reworking kernel code in preparation for upcoming CPU features has been found to be rather hairy after already being mainlined and thus another batch of urgent x86 fixes were sent in this morning.

34 Minutes Ago - Intel - Linux 5.13 XSTATE - Add A Comment
Mesa Lands Work Around Async glFlush - Should Help Workstation Performance

While vendors are increasingly just focused on Vulkan (and Direct3D under Windows), there still is plenty of OpenGL software out there especially in the workstation space where software vendors are slow to adapt. Well known RadeonSI OpenGL developer Marek Olšák of AMD landed another performance optimization this week that should benefit the likes of SPECviewperf.

99 Minutes Ago - Mesa - Asynchronous glFlush - 3 Comments

19 June

18 June

RADV Open-Source Radeon Vulkan Driver Begins Landing Ray-Tracing Changes

In recent months RADV lead developer Bas Nieuwenhuizen began working on Vulkan ray-tracing support for this Mesa Radeon Vulkan driver that isn't officially supported by AMD but as an alternative to the company's open-source AMDVLK driver or their cross-platform proprietary Vulkan driver. Hitting the Mesa 21.2-devel code a few minutes ago is the initial Vulkan ray-tracing bits for RADV!

18 June 07:05 PM EDT - Radeon - Ray-Tracing Support - 7 Comments
GravityMark OpenGL/Vulkan Performance For NVIDIA RTX 30 vs. AMD Radeon RX 6000 Series

A few days ago I wrote about GravityMark as a new cross-API GPU benchmark from a former Unigine developer. Being curious about the Linux GPU driver performance for this benchmark that is focused on delivering maximum GPU acceleration support, I ran some benchmarks on the latest NVIDIA GeForce and AMD Radeon graphics cards with this benchmark for OpenGL and Vulkan.

18 June 09:30 AM EDT - Display Drivers - 30 Comments

17 June

NVIDIA Resizable BAR Performance - A Big Boost For Some Linux Games

Back in March NVIDIA announced they would be supporting the GeForce RTX 30 series with Resizable BAR support via a video BIOS update for supported systems. Recently I've been looking at the performance of a GeForce RTX 3080 once flashing the graphics card under Linux with Resizable BAR support and the performance is quite compelling for Vulkan-based games where this functionality is working.

17 June 03:00 PM EDT - Display Drivers - 17 Comments
Fedora Stakeholders Back To Discussing Raising x86_64 Requirements Or Using Glibc HWCAPS

While Red Hat Enterprise Linux 9 is dropping support for older x86_64 CPUs by raising the baseline requirement to "x86_64-v2" that roughly correlates to Intel Nehalem era processors and newer, so far Fedora has not changed its default. There was a proposal shot down last year for raising the x86_64 microarchitecture feature level while now that discussion has been restarted or alternatively making use of Glibc's HWCAPS facility for allowing run-time detection and loading of optimized libraries.

17 June 02:07 PM EDT - Fedora - x86_64 Feature Levels - 20 Comments
It's Good But Maybe Bad: LVFS Skyrockets With More Than 100k Firmware Updates In One Day

The Linux Vendor Firmware Service (LVFS) with Fwupd has been serving on average around 40k~50k firmware updates per daay to Linux users relying on this cross-vendor, open-source firmware distribution service with FWUPD for applying firmware updates under Linux. But yesterday its usage just skyrocketed with more than 100,000 firmware updates in a single day... That's great for adoption but the motivation for the mass firmware updates may be something rough on the horizon.

17 June 05:53 AM EDT - Hardware - Security Issue About To Drop? - 20 Comments

16 June

Blender 3.0 Likely Delayed 2 Months For Post-Lockdown Breather, Cycles X Might Land

The wildly successful Blender 3D open-source modeling software has been working hard towards its Blender 3.0 release but will likely now be proactively delayed to allow developers more time to relax with COVID-19 lockdowns/restrictions loosening, the possibility of developer meetups pre-3.0, and letting more changes flow into this big feature release.

16 June 02:41 PM EDT - Free Software - Blender 3.0 - Add A Comment
AMD EPYC 7343 / EPYC 7443 Linux Performance

Since the AMD EPYC 7003 "Milan" series launch back in March we have carried out many benchmarks with their flagship processors like the EPYC 7763 and 7713 processors and some of the frequency optimized SKUs, but what about the performance lower down the product stack? Up for benchmarking today is a look at the AMD EPYC 7343 and 7743 processors in 1P and 2P configurations against other AMD EPYC Milan processors as well as Intel's Xeon Platinum 8380 Ice Lake processors.

16 June 09:00 AM EDT - Processors - 4 Comments
Fedora Cloud 35 Approved To Use Btrfs By Default

Last month plans were published for Fedora Cloud 35 to use the Btrfs file-system by default, similar to Fedora Workstation using Btrfs by default for several releases. That plan has now been signed off on by FESCo allowing for this change to happen.

16 June 06:00 AM EDT - Linux Storage - Fedora Cloud 35 + Btrfs - 52 Comments
SUSE Linux Enterprise / openSUSE Leap Pursuing x86_64-v2 Optimized Libraries

In addition to the rolling-release openSUSE Tumbleweed looking at HWCAPS / x86-64 feature levels for being able to provide greater out-of-the-box performance by selectively loading more tuned libraries depending upon the CPU in use, SUSE Linux Enterprise / openSUSE Leap are also looking at offering similar functionality that may turn up in time for the next point release / service pack.

16 June 05:11 AM EDT - SUSE - x86_64-v2 HWCAPS - 14 Comments

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