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Red Hat Developing "eu-stacktrace" For Profiling Without Frame Pointers
Red Hat Developing "eu-stacktrace" For Profiling Without Frame Pointers
9 Hours Ago - Red Hat - eu-stacktrace - 10 Comments

While last year we saw Fedora to no longer omit the frame pointer to help in debugging/profiling Fedora packages and Ubuntu 24.04 LTS also enabled frame pointers for better debugging/profiling, among other distributions, there is the known performance implications of no longer omitting the frame pointer. But now in aiming to make the best of both worlds, it turns out Red Hat has been developing eu-stracktrace as a new means of profiling without relying on frame pointers.

AMD P-State Linux Patches Updated For Heterogeneous CPUs
AMD P-State Linux Patches Updated For Heterogeneous CPUs
12 Hours Ago - AMD - AMD P-State Heterogeneous v3 - 2 Comments

Last month AMD Linux engineers posted ap atch series for better handling heterogeneous core type CPUs. This is for enhancing the P-State CPU frequency scaling on CPUs featuring a mix of conventional cores and efficiency cores, e.g. Zen 4 and Zen 4C. A third iteration of these patches were posted today.

10 June

oneAPI-Focused UXL Foundation Now Collaborating With The Khronos Group
oneAPI-Focused UXL Foundation Now Collaborating With The Khronos Group
10 June 08:20 PM EDT - Standards - UXL Foundation + Khronos - 9 Comments

Last year it was announced that Intel's oneAPI software initiative evolved into the UXL Foundation for making compute accelerators more open as well as opening things up to more cross-vendor collaboration and adoption. Intel started the Unified Acceleration Foundation with the Linux Foundation, Google, Arm, Qualcomm, Samsung, and others. Announced today is that the UXL Foundation has begun collaborating with The Khronos Group.

One-Line Patch For Intel Meteor Lake Yields Up To 72% Better Performance, +7% Geo Mean
One-Line Patch For Intel Meteor Lake Yields Up To 72% Better Performance, +7% Geo Mean
10 June 11:00 AM EDT - Software - 31 Comments

Covered last week on Phoronix was a new patch from Intel that with tuning to the P-State CPU frequency scaling driver was showing big wins for Intel Core Ultra "Meteor Lake" performance and power efficiency. I was curious with the Intel claims posted for a couple benchmarks and thus over the weekend set out to run many Intel Meteor Lake benchmarks on this one-line kernel patch... The results are great for boosting the Linux performance of Intel Core ultra laptops with as much as 72% better performance.

AMD Posts New Linux Patches For Per-Core CPU Energy Counters
AMD Posts New Linux Patches For Per-Core CPU Energy Counters
10 June 06:48 AM EDT - AMD - power_per_core PMU - 3 Comments

After an attempt in early 2023 didn't pan out, today an AMD Linux engineer posted a new kernel patch series for enabling per-core RAPL energy counter support for AMD processors. With this patch series when using Linux's venerable perf utility it's now possible for reading the power use on a per CPU core basis using a new "power_per_core" PMU.

9 June

8 June

AMD's Newest Open-Source Surprise: "Peano" - An LLVM Compiler For Ryzen AI NPUs
AMD's Newest Open-Source Surprise: "Peano" - An LLVM Compiler For Ryzen AI NPUs
8 June 07:56 AM EDT - AMD - AMD Peano - 10 Comments

There was a very exciting Friday evening code drop out of AMD... They announced a new project called Peano that serves as an open-source LLVM compiler back-end for AMD/Xilinx AI engine processors with a particular focus on the Ryzen AI SOCs with existing Phoenix and Hawk Point hardware as well as the upcoming XDNA2 found with the forthcoming Ryzen AI 300 series.

OBS Studio 30.2 Beta Brings Native NVENC Encoder Support On Linux
OBS Studio 30.2 Beta Brings Native NVENC Encoder Support On Linux
8 June 06:17 AM EDT - Free Software - OBS Studio 30.2 Beta 1 - 7 Comments

Out for testing this weekend is the OBS Studio 30.2 beta software for those into live-streaming their desktop and other screen recording purposes. With the OBS Studio 30.2 release there are video encode improvements for Linux, support for multi-track video streaming, hybrid MP4 output, and other new features.

KDE Plasma 6.1 Is Looking To Be A "Good One"
KDE Plasma 6.1 Is Looking To Be A "Good One"
8 June 06:07 AM EDT - KDE - KDE Plasma 6.1 Coming Soon - 29 Comments

The KDE Plasma 6.1 desktop is due for release in a little more than one week. Prominent KDE developer Nate Graham thinks this is going to be a "good one" with a lot of new features, better performance, and more.

7 June

Linux 6.11 To Merge Support For Running AMD SEV-SNP KVM Guests
7 June 01:35 PM EDT - AMD - AMD SEV-SNP KVM Guest Support - Add A Comment

The patches have been years in the making around AMD SEV-SNP encrypted virtualization and various elements have been upstreamed in prior kernel versions while for the upcoming Linux 6.11 cycle are finally the Kernel-based Virtual Machine (KVM) bits for launching SEV-SNP protected guest virtual machines.

AMD Lands Support For Vendor Flavored SPIR-V Within LLVM
7 June 10:12 AM EDT - LLVM - AMDGCN Flavored SPIR-V - 3 Comments

SPIR-V used by the likes of OpenGL, OpenCL, and Vulkan is a common intermediate representation (IR) / intermediate language for consumption by device drivers. With code now merged into LLVM, AMD has introduced the notion of vendor "flavored" SPIR-V for containing extra information pertinent to the GPU device/driver being targeted.

6 June

Shopping For A Launch-Day AMD Ryzen AI 300 Series Laptop For Linux Testing
6 June 10:40 AM EDT - AMD - AMD Ryzen AI 300 Series Linux Testing - 27 Comments

With this week's Computex announcement by AMD of the Ryzen AI 300 series laptop processors built atop Zen 5, one of the pleasant aspects has been several laptop models being announced already to be powered by either the Ryzen AI 9 365 or Ryzen AI 9 HX 370 flagship models. Some models are also already available for pre-order ahead of launch day. This is quite nice compared to in the past there was often at times quite a delay between the initial AMD Ryzen mobile announcements and being able to (pre)order any hardware. And thus I've already been looking around to coordinate near launch day Linux testing of the new AMD Zen 5 powered Ryzen AI 300 series hardware.

The Most Popular Linux News Over The Past 20 Years
6 June 06:20 AM EDT - Free Software - 20 Year Popularity - 9 Comments

With yesterday marking the 20th birthday of Phoronix, I was curious what the most popular news articles were over these past two decades. There's a lot of compiler fodder, news from the early days of AMD Ryzen, Linus Torvalds commentary, and more.

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