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À partir d’avant-hierPhoronix

AMD Radeon RX 7900 GRE Linux Performance

26 février 2024 à 14:00
Last July AMD launched the Radeon RX 7900 GRE graphics card in China with a reduced Navi 31 GPU. Beginning tomorrow, 27 February, the Radeon RX 7900 GRE is being made available worldwide. Today the review embargo expires on the Radeon RX 7900 GRE for the worldwide scope and within the US will be priced around $549 USD.

PVM Virtualization Framework Proposed For Linux - Built Atop The KVM Hypervisor

26 février 2024 à 16:19
Ant Group and Alibaba have proposed PVM, the Pagetable Virtual Machine, as a new virtualization framework built upon the Kernel-based Virtual Machine (KVM) hypervisor. PVM does not require hardware-assisted virtualization while working with KVM-enabled software like Kata Containers...

Ubuntu Blog Talks Up Rust Schedulers, Potential For Micro-Kernel Design Future

27 février 2024 à 01:27
Ubuntu/Canonical has for a while now promoted the prospects of Rust programming within the Linux kernel and one of their kernel engineers, Andrea Righi, wrote a Rust-written Linux scheduler with promising results that leverages eBPF for dynamically loading it at run-time. While Ubuntu isn't yet committing to using it as part of their distribution, appearing on the Ubuntu blog today was more praise for the work and even talking about the potential for a "micro-kernel design" in the future via leveraging Rust and eBPF...

Intel HFI Driver Can "Save Tons Of CPU Cycles" By Only Enabling Itself When Needed

27 février 2024 à 11:42
The Linux kernel has supported the Intel Hardware Feedback Interface "HFI" via the "intel_hfi" driver since 2022 for bettering supporting Core hybrid processors. The Intel HFI can be used for communicating performance and energy efficiency capabilities of individual CPU cores of the system. In turn the Linux kernel can leverage Intel HFI details for better task placement among the available CPU cores/threads. With a new patch series, the Intel HFI driver can "save tons of CPU cycles" by only enabling it when needed...

64K Kernel Page Size Performance Benefits For HPC Shown With NVIDIA's GH200 Grace CPU

27 février 2024 à 17:00
By default the AArch64 kernel on Ubuntu and other Linux distributions tend to default to a standard 4K page size but for newer AArch64 hardware especially in the server/HPC space, there can be great benefits to using a 64K page size. As it's been a while since I last ran any 64-bit ARM 4K vs. 64K kernel page size benchmarks, while having remote access to the NVIDIA GH200 I ran a fresh comparison for looking at the performance advantages to switching over to a 64K page size kernel. These new 64K kernel numbers are shown alongside the recent AMD EPYC and Intel Xeon CPU reference benchmark results for a look at how the 4K vs. 64K page size affects the overall computing landscape.

Linux's V4L2 VP9 Codec Kernel Code Rewritten In Rust For Better Memory Safety

28 février 2024 à 01:12
Daniel Almeida with Collabora has posted a rewritten of the VP9 codec library code within the Linux kernel's Video 4 Linux 2 (V4L2) subsystem. In using Rust rather than the existing C code, this should yield better memory safety and better fend off potential issues within the existing code...

NVK Vulkan Driver Lands Shader Object & Graphics Pipeline Library

28 février 2024 à 11:38
The open-source NVIDIA "NVK" Vulkan driver within the Mesa codebase has merged support for the important VK_EXT_shader_object and VK_EXT_graphics_pipeline_library extensions. Additionally, as part of supporting these new extensions, this introduces the code for a common Vulkan runtime to Mesa...

Intel Xe Kernel GPU Driver Starts Landing SR-IOV Bits & Other Features For Linux 6.9

28 février 2024 à 12:00
Upstreamed for Linux 6.8 is the experimental Xe kernel graphics driver that is a modern replacement to the "i915" Direct Rendering Manager driver. The Xe kernel driver targets Tigerlake graphics and newer while it won't be until Lunar Lake / Xe2 when it aims to become the default driver for Intel iGPU/dGPU graphics. For the upcoming Linux 6.9 kernel merge window are more feature changes and fixes to this new open-source Intel kernel graphics driver...

FUSE Passthrough Support May Land For Linux 6.9 To Help Boost I/O Performance

28 février 2024 à 14:36
Being worked on and off for several years has been FUSE read/write passthrough support for improving the performance of File-Systems in User-Space by avoiding the daemon overhead on a per-file basis where read/write operations are forwarded by the kernel directly to the lower file-system rather than the FUSE daemon. FUSE passthrough mode has shown to be a big performance win and it looks like it could be finally mainlined come Linux 6.9...
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