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Kernel: Linux 5.13 and eBPF

Submitted by Roy Schestowitz on Monday 3rd of May 2021 03:20:22 PM Filed under
Linux
  • Linux 5.13 Networking Includes BPF Improvements, Optimizations, WWAN + MANA

    Last week the big set of networking subsystem updates were submitted and merged for the ongoing Linux 5.13 merge window.

    The networking updates this cycle were another hearty mix of new network adapter support, optimizations for performance and reliability, continuing to extend the capabilities of (e)BPF, and more.

  • Intel's Linux Vulkan Driver Adds Fragment Shading Rate Support

    Intel's open-source "ANV" Vulkan Linux driver has finally merged support for the KHR_fragment_shading_rate extension.

    Introduced last October with Vulkan 1.2.158 was this fragment shading rate extension for changing the rate at which certain fragments are shaded. The fragment shading rate with this extension can be manipulated on a per-draw, per-primitive, or per-region manner. Use of this fragment shading rate extension can be used by Vulkan-powered games for shading higher levels of detail in a scene compared to others or rather less important areas at a lower quality shading in select areas of the scene.

  • Microsoft Prepping Linux For Running As 64-bit ARM Hyper-V Guest

    While Microsoft's Hyper-V virtualization hypervisor and their Azure cloud has largely been x86_64 focused, with the Linux 5.13 kernel they are moving further for supporting Linux as a ARM64 Hyper-V guest.

    Microsoft's Hyper-V changes that were merged last week for the Linux 5.13 kernel include VMBus enhancements and other work, but arguably most notable are new patches for "running Linux as Arm64 Hyper-V guest."

  • A Gentle Introduction to eBPF

    In this article, we will review what eBPF is, what it does, and how it works. Then, we will explain how to execute an eBPF program and provide an example of eBPF in action. Finally, we will conclude with recommendations for next steps.
    eBPF lets programmers execute custom bytecode within the kernel without having to change the kernel or load kernel modules. Exciting? Maybe not yet.

»

Microsoft boosters delighted to help Microsoft hijack the word

Submitted by Roy Schestowitz on Monday 3rd of May 2021 06:21:26 PM.

Linux 5.13 To Allow Zstd Compressed Modules

Submitted by Roy Schestowitz on Monday 3rd of May 2021 06:23:40 PM.
  • Linux 5.13 To Allow Zstd Compressed Modules, Zstd Update Pending With Faster Performance

    Adding to the variety of places where the Linux kernel supports making use of Zstd compression, kernel modules moving forward can now enjoy size reductions with Zstd.

    Linux already supports optional Gzip and XZ compression of kernel modules while beginning with Linux 5.13 there is support added for Zstd. In user-space, KMOD 28 already supports dealing with Zstd-compressed modules. The compressed modules are suffixed .ko.zst.

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