Phoronix

The turbostat utility that lives within the Linux kernel source tree for reporting CPU frequency/idle statistics and other metrics is gaining some new capabilities as part of the Linux 6.13 cycle...

November was filled with interesting Linux benchmarks ranging from the Apple M4 testing kicking off to ongoing AMD Zen 5 benchmarks both for desktops and servers, a lot of exciting upstream kernel activity (and some drama...), and more. Even with the end of year holidays around, there remains new and original content on Phoronix each and every day. During November there were 250 original news articles on Phoronix along with another 14 Linux hardware reviews / multi-page featured-length benchmark articles...

NVIDIA engineer Yonatan Maman posted a set of "request for comments" patches this Sunday to implement GPU Direct RDMA "P2P DMA" for device private pages. This is the latest in the effort by multiple vendors to allow more efficient data sharing between GPUs/accelerators and other devices like network adapters...

Submitted today for the Linux kernel ahead of the Linux 6.13-rc1 release as part of the "x86/urgent" material is a fix for aging Zen 1 and Zen 2 processors where for the past year and a half they could potentially find very slow boot times...

Last night when writing about the Clang AutoFDO and Propeller optimization patches sent in for Linux 6.13 I had wondered whether Linus Torvalds would go through with the pull request given some of his past commentary around aggressive compiler optimizations... But to much delight, this evening Linus Torvalds has merged the Kbuild pull request that introduces Clang-based AutoFDO and Propeller compiler optimization support for allowing greater kernel performance out of tailored (profiled) workloads...

In what could be a wonderful holiday for the Linux desktop, it looks like the Wayland color management protocol might finally be close to merging after four years in discussion...

As an alternative to the GNOME System Monitor application for system monitoring, Resources has been in development as a currently unofficial, GNOME-aligned resource/hardware monitoring application written in the Rust programming language. Resources v1.7 was released on Friday and now has the ability to monitor NPU usage and other enhancements...

In addition to the USB updates and big staging flush merged yesterday for the Linux 6.13 kernel merge window, the "char/misc" pull was also honored for that catch-all of various kernel changes. With the char/misc pull there are some notable additions for those wanting to write kernel drivers within the Rust programming language...

The Rust Hypervisor Firmware is a project out of the Cloud Hypervisor umbrella for developing open-source, Rust-based firmware that can be launched from any environment able to load ELF binaries and run them via the PVH booting standard. Rust Hypervisor Firmware v0.5 is out this weekend with the newest capabilities...

KDE developers have wrapped up a busy November with many fixes and other refinements landing this last week of the month...

Making for an even more exciting Black Friday is the Kbuild pull request submitted today for the near-over Linux 6.13 merge window... And it includes Clang Auto Feedback Directed Optimization (AutoFDO) support for kernel builds as well as Clang's Propeller...

Just a quick reminder this "Black Friday" if you would like to help show your support...

For those with some extra time over the US holiday weekend, LibreOffice 25.2 Alpha 1 has been published as the newest feature version of this open-source, cross-platform office suite that is a great alternative to the likes of Microsoft Office...

Following the release last month of the EPYC 9005 series processors, AMD published a BIOS and Workload Tuning Guide of straight-forward settings recommendations for those running new EPYC Turin servers to optimize the performance of different workloads like databases and Java to HPC and AI/ML software. Recently I started running some benchmarks to look at the impact of AMD's recommended BIOS tuning and beginning this comparison by looking at the performance (and power) impact across a range of AI / machine learning workloads on a 5th Gen AMD EPYC server.

Along with the staging changes, Greg Kroah-Hartman this morning also sent out the USB/Thunderbolt changes for the nearly-over Linux 6.13 merge window...

Greg Kroah-Hartman is out today with all of the pull requests for Linux 6.13 of the areas of the kernel he oversees. Most notable with the updates on the staging side are clearing out several drivers seeing no real code activity and no apparent users of the mainline Linux kernel... As such the staging pull lightens the kernel by around 107k lines of code...

A number of Vulkan Video enhancements landed this week in FFmpeg Git thanks to open-source developer Lynne that has been advancing the Vulkan Video encode/decode capabilities in this widely-used multimedia library...

The UBports community today released Ubuntu Touch OTA-7 as the latest version of the smartphone/tablet Linux platform currently running off an Ubuntu 20.04 base...

In mid-October was the release of a developer preview for Ubuntu 24.10 on Qualcomm Snapdragon X1 powered laptops. Yesterday an updated Ubuntu 24.10 release was made available catering to these popular, current-generation ARM-powered laptops that typically ship with Windows 11 for ARM...

There are a few Network File System (NFS) enhancements worth pointing out with the in-development Linux 6.13 kernel...

Open-source developer Rui Ueyama who is the lead developer of the Mold high performance linker and previously on the LLVM lld linker has written a detailed mailing list post that highlights some observed performance bottlenecks within the Linux kernel...

The Intel Graphics Compiler (IGC) that is used by the Intel Compute Runtime for Level Zero and OpenCL GPU compute support as well as being depended upon by the Windows 3D driver stack has now removed platform support up to and including Ice Lake...

It's not any shiny new web browser feature but Mozilla announced they are moving from .tar.bz2 packages for their Firefox Linux binaries over to using .tar.xz for a faster and lighter experience...

Adding to the interesting code building up for next spring's release of the LLVM 20 compiler stack is having the Tenstorrent TT-Ascalon D8 as the newest RISC-V processor target...

Merged last week back toward the start of the Linux 6.13 merge window were a number of interesting IO_uring enhancements for this first major kernel version of 2025...

Systemd 257 is nearing release as the next major feature release for this widely-used init system and software suite on Linux systems...

For those making use of the Microsoft exFAT file-system on Linux systems, the upcoming Linux 6.13 kernel brings an optimization that will help some operations by reducing the FAT chain traversal...

Back in April AMD announced the Versal Gen 2 Adaptive SoCs for AI-driven embedded systems. In preparing for Versal2 evaluation kits expected around the middle of the year and production silicon by the end of 2025, AMD software engineers have begun ramping up their open-source and upstream-focused Linux driver support...

The RISC-V CPU port updates have been sent out for the in-development Linux 6.13 kernel...

For those building your own server around the new Intel Xeon 6 "Granite Rapids" or AMD EPYC 9005 "Turin" platforms and using DDR5-6000/DDR5-6400 memory (or the interesting MRDIMM-8000 memory with Xeon 6 P), one of the factors you need to be much more mindful about than in the past is that at least the initial generation of DDR5-6000+ memory is running much hotter than prior server memory. There's been guidance from Intel and AMD as well as sever vendors about the thermal considerations with DDR5-6000/DDR5-6400 and extra precautions. Here's a look at the DDR5-6000 thermals on a recent AMD EPYC 9655 Turin server build and then taming the DDR5 server memory modules using Corsair Vengeance Airflow Memory Cooling Fans.

The SoundWire subsystem updates were sent out today for the Linux 6.13 kernel. This cycle brings new AMD driver support as well as supporting the MIPI DisCo 2.0 specification...

Sent out on Tuesday was the modules pull request for Linux 6.13 that have some low-level improvements but it noted that the biggest kernel modules highlight wasn't in that pull request itself but had been added by way of the memory management pull. This was a change by a Microsoft engineer around caching of kernel modules into huge pages...

MIPS has begun working on the open-source compiler toolchain support for their P8700 RISC-V based processors. Initial patches posted today bring-up the MIPS P8700 RISC-V support for the LLVM compiler stack...

Days after announcing the Raspberry Pi Pico 2 W for $7, Raspberry Pi today announced the Compute Module 5 at the $45 price point...

Merged for the Linux 6.12 kernel was the long-awaited real-time "PREEMPT_RT" kernel support and allowing it to be enabled across x86/x86_64, ARM64, and RISC-V CPU architectures. With the Linux 6.13 kernel, LoongArch is joining the RT party...

In prior years the Free Software Foundation (FSF) has published an Ethical Tech Giving Guide for holiday shopping where they recommend products like old AMD Opteron motherboards and USB to parallel printer cables that "respect your freedoms" and meet their strict free software definitions. Out today is their newest annual FSF Ethical Tech Giving Guide...

There are some new open-source/Linux details to note when it comes to the AMD accelerators in the Instinct "CDNA" land...

The Flash Friendly File-System (F2FS) updates were sent out on Monday for Linux 6.13 and include one very interesting new feature for this file-system: device aliasing as a means of being able to temporarily carve out a portion of the partition for other purposes...

Google engineer Ricardo Ribalda has proposed a set of patches for the common "uvcvideo" kernel driver that supports UVC-compliant web cameras and the like to provide granular power saving support...

Now that Linux 6.12 has a fix for the Lunar Lake performance with the ASUS Zenbook I have been using for my Core Ultra 200V series Linux testing as well as there recently being an updated Intel Compute Runtime with Lunar Lake fixes, I have been working on some fresh Lunar Lake Xe2 graphics benchmarks using the very latest upstream open-source code. In today's article is exploring how the Xe2 Lunar Lake graphics is performing for OpenCL / GPU compute relative to the prior Meteor Lake Arc Graphics that were already a nice step-up over earlier Intel integrated graphics.

With GIMP 3.0-RC1 out for testing since earlier this month, the hope is that GIMP 3.0 stable will in fact ship in time for the release of Ubuntu 25.04 next April. The current GIMP 3.0 release candidate is working its way to Debian Unstable and in turn soon should be available via the Ubuntu 25.04 archive...

The I3C subsystem updates were submitted for the Linux 6.13 kernel on Monday and include support for another I3C HCI controller used on AMD systems...

Overnight the Rust for Linux lead developer Miguel Ojeda submitted the big set of Rust infrastructure/toolchain updates for the Linux 6.13 holiday kernel...

In between managing all of the pull requests being submitted during this two week long merge window for the Linux 6.13 kernel, Linus Torvalds has merged some of his own code this cycle...

The RDMA subsystem updates were sent out last Friday for the ongoing Linux 6.13 kernel cycle. Most notable with the RDMA updates is the NVIDIA Mellanox "MLX5" network driver introducing a new Data Direct Placement (DDP) feature to further help with performance...

Either due to a mistimed blog post or other factors, a big feature article is out talking up the new ROCm 6.3 features... But the updated ROCm 6.3 open-source GPU compute software doesn't appear to actually be released yet at all their usual sources. In any event there are new features and big performance gains being talked up for ROCm 6.3...

Sent out today were the big set of PCI subsystem updates ready to be merged for the Linux 6.13 kernel. Most notable of the PCI updates is PCI Express TLP Processing Hints (TPH) with that kernel support worked on by AMD engineers as part of one of the new hardware features found with the AMD EPYC 9005 server processors. Over on the Intel side is the new PCIe cooling driver and other changes...

The KVM changes were merged yesterday for Linux 6.13 in further enhancing the open-source virtualization stack...

The GCC 15 code compiler that is releasing as stable in the early months of 2025 has removed all support for the Altera Nios II CPU target...

With my recent AMD EPYC 9005 1P 4U server build using a Supermicro H13SSL-N motherboard, SilverStone kindly sent over their two Socket SP5 cooling options for AMD EPYC processors: the XE04-SP5 4U-compatible heatsink fan and then the XE360-SP5 AIO liquid cooler with a triple 120mm fan radiator to allow effectively cooling up to the new 400~500 Watt EPYC Turin processors. Here is a look at these two high-end AMD EPYC cooling options for those carrying out 4U EPYC 9004/9005 server builds along with thermal and performance benchmark results.