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Kernel: Linux and AMD/Radeon Bits

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Graphics/Benchmarks
Linux
  • Linux 5.16 To Expose AMD PSF Disable Bit To KVM Guests - Phoronix

    While the Linux kernel still hasn't added any formal control yet for AMD Predictive Store Forwarding to disable it short of also toggling Spectre V4 / SSBD, with the Linux 5.16 kernel the AMD PSF bit will now be exposed to KVM guest virtual machines so that they -- either with a patched/future kernel or for other operating systems -- may choose to toggle explicitly disable this AMD CPU feature.

    Predictive Store Forwarding is the Zen 3 feature in the name of performance that AMD provided a security analysis of earlier this year and the (small) possibility it could lead to incorrect CPU speculation. More than a half-year later, there still are no indications of any real-world attack on AMD PSF and the functionality remains enabled by default. But efforts to expose a PSF option for disabling it under Linux if so desired (aside from also engaging SSBD) have stalled.

  • RadeonSI Driver Merges NGG Improvements, Other Optimizations For Mesa 21.3 - Phoronix

    AMD open-source driver developers today merged another big set of patches providing various micro-optimizations and other enhancements to the RadeonSI Gallium3D driver.

    Ahead of Mesa 21.3 branching in a few weeks, the latest Mesa Git code saw a big set of patches today for the open-source RadeonSI driver. As with recent Mesa activity, there has been much work around SPECViewPerf/workstation optimizations and also further maturing the open-source driver's NGG (Next-Gen Geometry) handling.

  • AMD Posts Code Enabling "Cyan Skillfish" Display Support Due To Different DCN2 Variant - Phoronix

    ince July we've seen AMD open-source driver engineers posting code for "Cyan Skillfish" as an APU with Navi 1x graphics. While initial support for Cyan Skillfish was merged for Linux 5.15, it turns out the display code isn't yet wired up due to being a different DCN2 variant for its display block.

    Cyan Skillfish is in a bit of an odd position since its a Navi 1x RDNA APU where as other leaks/rumors showed AMD moving straight from the existing Vega-based APUs over to Navi 2x / RDNA2 and not matching with other road-map expectations... Especially with the AMDGPU Linux driver stack already busy preparing for Yellow Carp / Rembrandt and Van Gogh. Possibly pointing to Cyan Skillfish being more of a custom APU design is that it has slightly different display IP compared to existing RDNA/RDNA2 hardware.

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Dilution and Misuse of the "Linux" Brand

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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.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.