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Intel VPU Driver Adapted To Linux's New Accelerator Framework
Intel VPU Driver Adapted To Linux's New Accelerator Framework
8 December 03:22 PM EST - Intel - Versatile Processing Unit - Add A Comment

Going back to the summer Intel posted their initial open-source Linux driver for their Versatile Processing Unit "VPU" debuting with Meteor Lake. Since then they have continued refining this open-source VPU Linux driver and with the latest patch series have adapted it to make use of the new accelerator framework/subsystem premiering in Linux 6.2.

AMD Radeon RX 7900 XTX & RX 7900 XT Arrive For Linux Testing
AMD Radeon RX 7900 XTX & RX 7900 XT Arrive For Linux Testing
8 December 09:00 AM EST - Graphics Cards - 42 Comments

At the start of November AMD announced the Radeon RX 7900 series while these high-end RDNA3 graphics cards will go on sale next week. Both the Radeon RX 7900 XT and RX 7900 XTX are at Phoronix for Linux testing with AMD's fully open-source graphics driver stack while today the embargo expires on showing off the hardware.

The Most Interesting New Features For Linux 6.1
The Most Interesting New Features For Linux 6.1
8 December 06:43 AM EST - Linux Kernel - Linux 6.1 Features - 3 Comments

With the Linux 6.1 kernel set to be released this weekend, here is a look back at the prominent changes to find with this kernel. Linux 6.1 besides being the last kernel version of the year is all the more important in that it's expected to be the new Long Term Support (LTS) kernel.

Intel oneAPI Level Zero Being Packaged Up For Fedora
Intel oneAPI Level Zero Being Packaged Up For Fedora
8 December 05:12 AM EST - Intel - oneAPI Level Zero - 1 Comment

While Intel's GPU compute stack for Linux is fully open-source, one area where it still has room for improvement is getting it packaged up on more Linux distributions. The reference binaries published by Intel for their Compute-Runtime and Level Zero components are just Debian/Ubuntu packages but with time -- and as Arc Graphics and other hardware becomes available -- we are seeing more distributions taking a stab at offering up their own package builds.

7 December

AMD Posts P-State Linux Patches For New "Guided Autonomous Mode"
AMD Posts P-State Linux Patches For New "Guided Autonomous Mode"
7 December 11:37 AM EST - AMD - AMD P-State Guided Autonomous - 10 Comments

With the AMD P-State CPU frequency scaling driver that has come together over the past year and improved upon there has been the Energy Performance Preference "EPP" mode being worked on recently to further improve the performance/power characteristics of Ryzen and EPYC processors on Linux. A new patch series today implements a third mode for the AMD P-State driver.

Intel Raptor Lake Mitigation Impact Performance Comparison
Intel Raptor Lake Mitigation Impact Performance Comparison
7 December 11:20 AM EST - Software - 2 Comments

A recurring question that has come up by readers since the recent launch of the Intel 13th Gen Core "Raptor Lake" processors has been whether it's still worthwhile running with the "mitigations=off" Linux kernel option to disable software-controlled CPU security mitigations to increase performance. For production systems that is never recommended due to the security risk, but for those wondering, here is a brief look at the mitigation situation on Raptor Lake with the flagship Core i9 13900K.

Initial AMD Zen 4 Support Patch Under Review For LLVM/Clang
Initial AMD Zen 4 Support Patch Under Review For LLVM/Clang
7 December 06:40 AM EST - AMD - AMD Znver4 LLVM - 2 Comments

Following the initial AMD Zen 4 "znver4" target for GCC 13 that was published and merged in October (and now a SUSE engineer working on providing actually tuned support and accurate cost tables), an initial AMD Zen 4 patch for the LLVM/Clang compiler was published a few days ago.

6 December

Modula-2 Language Frontend Patches Ready For Merging Into GCC 13
Modula-2 Language Frontend Patches Ready For Merging Into GCC 13
6 December 02:15 PM EST - GNU - GCC Modula-2 - 27 Comments

In addition to today seeing the GCC Rust front-end being declared ready for merging with its latest patch series sent out today, the Modula-2 front-end sent out its third revision which is also expected to now be merged as another new programming language front-end for GCC 13.

New MGLRU Linux Patches Look To Improve The Scalability Of Global Reclaim
New MGLRU Linux Patches Look To Improve The Scalability Of Global Reclaim
6 December 01:00 PM EST - Linux Kernel - memcg LRU - 12 Comments

Among the many exciting new features in Linux 6.1 is the merging of the Multi-Gen LRU "MGLRU" code as what has shaped up to be one of the best kernel innovations for 2022 for overhauling the Linux kernel's page reclamation code. The performance results already are very promising and MGLRU is being used successfully at Google and other large deployments. The work isn't over though on further advancing the kernel in this area.

AMD Zen 4 Cost Table & Tuning Patches Posted For The GCC Compiler
AMD Zen 4 Cost Table & Tuning Patches Posted For The GCC Compiler
6 December 08:17 AM EST - AMD - Znver4 Tuning - 3 Comments

Back in October AMD sent out their initial Zen 4 "znver4" enablement for the GCC compiler. That initial Zen 4 support was since merged for GCC 13 but that initial enablement carried over the cost tables from Zen 3 and didn't do much in the way of tuning but rather just flipping on the new instructions supported by the Ryzen 7000 series and EPYC 9004 series processors. Today there is finally some juicy tuning patches being sent out for GCC.

5 December

A Fresh Look At The Asahi Linux Performance On Apple's M2
5 December 12:00 PM EST - Software - 13 Comments

Back during the summer once Asahi Linux introduced initial Apple M2 SoC support I ran many Apple M2 Linux benchmarks including a look at how the M2 competes with AMD and Intel laptop processors. With months having passed since then and the Apple M1/M2 Linux support has continued to advance upstream as well as more work hitting the Asahi Linux tree, here is a fresh look at where the performance of the M2 is currently at compared to that initial at-launch support.

PoCL 3.1 Released - Improved SPIR-V For CPU & CUDA Drivers, WIP Vulkan Driver
5 December 08:19 AM EST - Standards - PoCL 3.1 - Add A Comment

PoCL 3.1 is out today as the newest feature update to the "Portable Computing Language" that is effectively a portable OpenCL implementation that originally began focused on being a CPU-based implementation of OpenCL and has grown to support additional back-end drivers via LLVM for targeting NVIDIA CUDA, an experimental Vulkan driver, and other accelerator targets.

Twenty Old X.Org Components See New Updates
5 December 05:57 AM EST - X.Org - X11 Updates - 37 Comments

While X.Org Katamari releases are no longer being organized to bundle up all of the different X11 software components behind one version number and some X.Org software pieces are seeing very seldom updates every number of years, this past week has seen twenty new X.Org software releases.

4 December

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