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Kernel: Linux 5.15, File Allocation, and Compiler Errors

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  • Linux 5.15 Adds VDUSE For vDPA Devices In User-Space - Phoronix

    Akin to FUSE for file-systems in user-space, VDUSE is set to be merged for Linux 5.15 in adding support for vDPA devices in user-space.

    The vDPA framework is the VirtIO Data Path Acceleration code within the kernel for devices complying with the VirtIO specification but relying on a vendor-specific control path. The vDPA framework is increasingly used for abstracting hardware and concealing some elements of the hardware complexities to software while having a unified user-space API as a VirtIO device.

  • If we have a HDD in Linux, is it necessary to defragment? -

    Users who are used to using Windows as an operating system are probably familiar with the terms fragment and defragment, as it is a utility widely used in the Microsoft operating system to improve its performance when using mechanical hard drives. That is why if we decide to switch to a Linux-based operating system, we may wonder whether we should also defragment our HDD to improve its performance over time.

    This is something that can attract our attention because when we install Linux distros we will surely not find tools to defragment, although they do exist. This may indicate that we will not need much. We always speak from the perspective of a mechanical hard drive since SSD disks do not require defragmentation regardless of the operating system we use.

  • SLUB Adapted To Be Real-Time Linux Compatible (PREEMPT_RT) - Phoronix

    One of the nice low-level improvements we've seen with Linux 5.15 is a number of pieces falling into place in the quest of upstreaming the real-time (RT) patches for Linux. The latest merge makes SLUB RT-compatible.

    The big RT addition for Linux 5.15 was the PREEMPT_RT locking code being merged and that representing a bulk of the previously outstanding real-time patches needing to be upstreamed. That is a big milestone albeit not across the finish line yet and more of the kernel code continues to be adapted to make it compatible with RT configurations.

  • Compromise reached as Linux kernel community protests about treating compiler warnings as errors [Ed: Microsoft Tim]

    Pushback from the Linux kernel community over defaulting to -Werror (make all warnings into errors) for compiling has resulted in a compromise where this default only applies to test builds.

    Linux creator and maintainer Linus Torvalds amended the Makefile used to compile the kernel so that -Werror was the default, saying: "We really should always have a clean build." The code was merged into what will be version 5.15 of the kernel.

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today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

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  • How To Install MongoDB on AlmaLinux 9 - idroot

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  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
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