AMD + Valve Focusing On P-State / CPPC Driver With Schedutil For Better Linux Efficiency

As reported at the start of August, AMD and Valve have been working on Linux CPU performance/frequency scaling improvements with the Steam Deck being one of the leading motivators. As speculated at that time, their work would likely revolve around use of ACPI CPPC found with Zen 2 CPUs and newer. Published last week was that AMD P-State driver for Linux systems indeed now leveraging CPPC information. AMD formally presented this new driver yesterday at XDC2021.

8 Hours Ago - AMD - AMD P-State - 8 Comments
GIMP 2.10.28 Released With More Fixes

There's still some time to go before seeing the long-awaited GIMP 3.0 release for this open-source image manipulation program but at least out this weekend is GIMP 2.10.28 for bettering the current stable series.

9 Hours Ago - Desktop - GIMP 2.10.28 - 7 Comments

17 September

Apple Silicon / M1 Port Planned For GCC 12

Developers are hoping for next year's GCC 12 release they will have Apple AArch64 support on Darwin in place for being able to support Apple Silicon -- initially the M1 SoC -- on macOS with GCC.

17 September 02:41 PM EDT - GNU - GCC 12 - 10 Comments
Experimenting Is Underway For Rust Code Within Mesa

Longtime Mesa developer Karol Herbst who has worked extensively on the open-source NVIDIA "Nouveau" driver as well as the OpenCL/compute stack while being employed by Red Hat is now toying with the idea of Rust code inside Mesa.

17 September 01:39 PM EDT - Mesa - Rust + Mesa - 29 Comments
The Current State Of Intel Discrete Graphics On Linux: Almost "Fully Functional"

Along with bringing up DG2/Alchemist graphics card support on Linux, Intel engineers have been working to square away their support for the DG1 developer graphics card. This week thanks to XDC2021 is a fresh status update about what is working with this initial Intel graphics card on their open-source driver and what remains in the works.

17 September 09:25 AM EDT - Intel - Intel DG1 Status - 6 Comments
The Increasing Importance Of ACPI Platform Profiles With Today's Throttle-Happy Hardware

As covered several times going back to the end of last year, ACPI Platform Profile support has materialized in recent versions of the Linux kernel for the core infrastructure and implementations that work with the latest laptops from the likes of Dell, Lenovo, ASUS, and HP. This platform profile support is becoming increasingly important with expressing your power/cooling/performance preference so that your laptop behaves as one would expect.

17 September 08:58 AM EDT - Hardware - Platform Profiles - 20 Comments

16 September

X.Org Could Use More Help Improving & Addressing Its Security

Those reading Phoronix over the years likely know the X.Org Server has had an increasing number of vulnerabilities come to light in recent times and statements by security researchers like the security being even worse than it looks. Given the age of the X.Org/X11 codebase and many components being rather unmaintained these days, the security situation isn't that great combined with a lack of manpower. The security topic was under the spotlight today at the XDC2021 conference.

16 September 04:10 PM EDT - X.Org - X.Org Security - 94 Comments
OpenZFS 2.1.1 Arrives As A Big Point Release

Following the big OpenZFS 2.1 release from July that brought Distributed SPARE RAID, a compatibility property for pools, and other new features, OpenZFS 2.1.1 is available today as a follow-up release for this open-source ZFS file-system implementation for Linux and FreeBSD systems.

16 September 02:17 PM EDT - Linux Storage - OpenZFS 2.1.1 - 2 Comments
Running Linux 5.15-rc1 Causing A New Slowdown... Here's A Look

As usual when the Linux 5.15 merge window began wrapping up, I set out to dive into its performance to see what is in store for this next version of the kernel and whether there was any regressions or other performance changes worth noting. Linux 5.15 overall has been in good shape for the "-rc1" state except noticing that code compilation workloads were taking longer on multiple Linux 5.15-rc1-running systems than Linux 5.14 or prior. Seeing it across multiple systems and a very real-world regression, it was worth bisecting and looking closer so here are the details.

16 September 07:00 AM EDT - Software - 26 Comments
Google Is Successfully Using The Open-Source Qualcomm GL/VLK Drivers On Chromebooks

It's been known that Google has been using the open-source "MSM" DRM/KMS driver on Qualcomm-powered devices that originally started out as a reverse-engineered driver project separate from the company. Now it's also been confirmed how Google is successfully using the open-source Mesa Freedreno OpenGL and TURNIP Vulkan drivers on Qualcomm-powered Chromebooks too.

16 September 03:00 AM EDT - Mesa - Mesa Drivers - 17 Comments

15 September

New Intel Tremont Optimizations Heading To The GCC Compiler

The GNU Compiler Collection has already supported Intel's Tremont cores as used by the low-power Jasper Lake platform. Now though coming to GCC are some optimizations to further enhance the performance when targeting the Tremont micro-architecture.

15 September 05:45 AM EDT - GNU - Faster Tremont / Jasper Lake - 2 Comments

14 September

NVIDIA RTX 30 Series Resizable BAR Support Continues Helping Performance On Linux

While NVIDIA has been supporting Resizable BAR for a while now with their GeForce RTX 30 series graphics cards, for those exclusively using Linux it remains more of a challenge due to AIB partners generally not releasing any vBIOS updates for ReBAR support that can be easily applied under Linux. But if you do carry out an update -- such as under Windows -- the performance uplift can be worthwhile if using a game that can benefit from the support.

14 September 09:09 AM EDT - Display Drivers - 9 Comments

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