Latest Linux Hardware Reviews, Open-Source News & Benchmarks

AMD Ryzen 5 7600X Linux Performance
AMD Ryzen 5 7600X Linux Performance
8 Hours Ago - Processors - 15 Comments

At the end of September when the review embargo lifted I looked at the AMD Ryzen 9 7900X and 7950X for our launch-day Linux testing and that was then followed by the Ryzen 7 7700X Linux review. Since then I received the fourth and final Ryzen 7000 series desktop processor currently available: the AMD Ryzen 5 7600X. The Ryzen 5 7600X is currently AMD's most affordable Zen 4 processor at $299 USD and provides six cores / 12 threads and a boost clock up to 5.3GHz.

6 October

Linux 6.1 Will Try To Print The CPU Core Where A Seg Fault Occurs
Linux 6.1 Will Try To Print The CPU Core Where A Seg Fault Occurs
6 October 06:30 PM EDT - Linux Kernel - Helps Spot Potentially Faulty CPUs - 15 Comments

A change now merged for Linux 6.1 will attempt to print the CPU core where a segmentation fault happens. The hope by printing the CPU/core where a segmentation fault happens is that over time trends may materialize with this information potentially being useful for helping to spot faulty CPUs.

AMD Continues Working Toward HDR Display Support For The Linux Desktop
AMD Continues Working Toward HDR Display Support For The Linux Desktop
6 October 11:00 AM EDT - Wayland - Still Work In Progress - 36 Comments

One of the rather elusive items on the Linux desktop is High Dynamic Range (HDR) display support... There's been code in the works for years but across desktops and drivers, it's still a long-term effort getting HDR support on the Linux desktop. Even going back to 2016, with NVIDIA's cross-platform driver code the Linux desktop remained the bottleneck. There is at least some ongoing work to address this long-term issue with AMD this week presenting on the topic.

Rusticl Shows Great Start For Rust OpenCL In Mesa - Might Support SYCL In The Future
Rusticl Shows Great Start For Rust OpenCL In Mesa - Might Support SYCL In The Future
6 October 09:00 AM EDT - Mesa - Rusticl 2022 - 10 Comments

Merged last month into Mesa 22.3 was Rusticl as a Rust-written OpenCL implementation for Gallium3D that is beginning to work with the open-source Radeon Linux driver, the Intel "Iris" Gallium3D driver, and others. This is also the first Rust-written component within the Mesa code-base. Karol Herbst of Red Hat who has led Rusticl development presented this week in Minnesota on this promising cross-vendor OpenCL implementation that may also support SYCL in the future.

AMD Cloud Platform Makes It Easy To Try Out AMD's Latest CPUs, Accelerators & ROCm Software
AMD Cloud Platform Makes It Easy To Try Out AMD's Latest CPUs, Accelerators & ROCm Software
6 October 06:24 AM EDT - Software - 8 Comments

Last week at Intel's Innovation conference the Intel Developer Cloud "DevCloud" was announced, while on the AMD side there is already something similar: the AMD Cloud Platform. At the tail end of 2021, AMD announced the Accelerator Cloud as a way for trying out the latest EPYC CPUs and Instinct accelerators complete with a pre-configured ROCm compute software stack. The AMD Cloud Platform is a currently parallel effort to the Accelerator Cloud with the former intended more for developers while the latter is more customer-oriented. After trying out the AMD Cloud Platform, it's indeed an easy way to evaluate the latest AMD data center wares while having a easy-to-deploy, pre-configured software environment.

5 October

Linux 6.1 Cleans Up More Code For PREEMPT_RT
5 October 11:42 AM EDT - Linux Kernel - Real-Time Kernel - 1 Comment

The real-time "RT" mainlining effort for the Linux kernel remains ongoing. While the finish line is coming near, PREEMPT_RT support for mainline still isn't over the last hurdle -- seemingly the main blocker it's still held up by are the printk changes with threaded console printing. But for the Linux 6.1 merge window there is at least more kernel code clean-ups.

Intel Arc Graphics A750 + A770 Linux Gaming Performance
Intel Arc Graphics A750 + A770 Linux Gaming Performance
5 October 09:00 AM EDT - Graphics Cards - 82 Comments

Today the embargo lifts on reviews of the Intel Arc Graphics A750 and A770 graphics cards ahead of their retail availability set for next week. I've had the A750 and A770 at Phoronix the past week and today can share initial performance figures on these Intel DG2/Alchemist discrete graphics cards under Linux with their open-source driver stack.

The State Of RADV's Vulkan Mesh Shading Support
5 October 04:55 AM EDT - Radeon - Vulkan Mesh Shaders - 2 Comments

Yesterday on the first day of the X.Org Developers' Conference (XDC 2022), Timur Kristóf of Valve's open-source Linux GPU driver team presented on the Vulkan mesh shader support being worked on for RADV.

4 October

SUSE Publishes First Prototype Of Adaptable Linux Platform (ALP)
SUSE Publishes First Prototype Of Adaptable Linux Platform (ALP)
4 October 06:19 PM EDT - SUSE - Adaptable Linux Platform - 8 Comments

After SUSE/openSUSE engineers began talking up the Adaptable Linux Platform "ALP" as their next-gen enterprise Linux focus, last week they talked up the imminent release of "Les Droites" as their first public ALP prototype. Today that prototype is now live.

Open-Source NVIDIA Vulkan "NVK" Driver Continues Progressing
Open-Source NVIDIA Vulkan "NVK" Driver Continues Progressing
4 October 01:40 PM EDT - NVIDIA - NVK - 23 Comments

As written about for several months on Phoronix, an open-source NVIDIA Vulkan driver has been in the works that by the end of the summer this "NVK" driver has been seeing a lot of activity by Jason Ekstrand of Collabora along with David Airlie and Karol Herbst of Red Hat. Jason today talked at XDC 2022 about this NVK driver effort.

Disabling Spectre V2 Mitigations Is What Can Impair AMD Ryzen 7000 Series Performance
Disabling Spectre V2 Mitigations Is What Can Impair AMD Ryzen 7000 Series Performance
4 October 06:42 AM EDT - Software - 40 Comments

Last week I shared some initial numbers how surprisingly when disabling Zen 4 CPU security mitigations can actually *hurt* the Ryzen 7000 series CPU performance. While conventional wisdom and with past Intel/AMD processors yield better performance when disabling the CPU security mitigations, with the Ryzen 9 7950X it was found to be basically the opposite. I have since conducted more tests and using an AMD Ryzen 5 7600X to confirm the earlier results and dig deeper into the data.

3 October

Linux 6.1 Feature Would Have Caught All memcpy Based Buffer Overflows Of Recent Years
3 October 01:30 PM EDT - Linux Security - Hardening The Kernel - 16 Comments

A kernel hardening security improvement on the way for Linux 6.1 is the ability to provide warning of possible memcpy() based overflows. Right now this is only a warning but it's work towards being able to address "trivially detectable" buffer overflow conditions within the kernel and in the future may be able to block such overflows from happening.

AMD Rembrandt CPUFreq vs. AMD P-State Linux Testing
3 October 11:30 AM EDT - Software - 18 Comments

Before getting busy with the AMD Ryzen 7000 "Zen 4" desktop testing, I recently wrapped up some benchmarks looking at the ACPI CPUFreq vs. AMD P-State frequency scaling drivers and various governor options for the AMD Ryzen 6000 "Rembrandt" mobile SoCs. If you are curious about the impact of CPUFreq/P-State and the various governors for the latest AMD laptops running Linux, this round of testing is for you.

Debian To Carry Patches For GNOME Dynamic Triple Buffering
3 October 06:13 AM EDT - Debian - Debian + Dynamic Triple Buffering - 27 Comments

There's been a lot happening in Debian recently from improving their handling of non-free firmware to switching to PipeWire and WirePlumber with Debian 12. Another change on the way is picking up Ubuntu's work on dynamic triple buffering for the GNOME desktop.

GNU Linux-libre 6.0 Released After More Blob Cleaning
3 October 05:29 AM EDT - Linux Kernel - GNU Linux-libre 6.0-gnu - 6 Comments

Following yesterday's release of the upstream Linux 6.0 kernel, the GNU FSFLA folks have released GNU Linux-libre 6.0 as their downstream that removes driver support for loading binary firmware/microcode and the ability to load non-free-software kernel modules.

2 October

The Most Interesting New Features Of Linux 6.0
2 October 05:55 AM EDT - Linux Kernel - Linux 6.0 New Features - 16 Comments

Barring any last minute reservations today by Linus Torvalds, the Linux 6.0 stable kernel is expected to be christened before the day is through. Linux 6.0 comes with many notable hardware support additions and other improvements, here is a reminder of all what is great about this imminent kernel release.

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