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Kernel: Speculative Page Faulting, lash-Friendly File-System (F2FS), Perf Tooling

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Linux
  • A Fresh Take On Speculative Page Faulting Aims For The Mainline Kernel

    Over the years there have been a number of rounds of patches published for speculative page faulting. The goal has been to support user-space page-faults without holding the memory management semaphores and to ultimately allow for better performance especially with threaded workloads. A fresh take on the speculative page faulting (SPF) functionality was recently volleyed on the kernel mailing list.

    Various kernel developers have been involved with Linux's speculative page faulting patches in recent years albeit none over the finish line for the mainline kernel but some Android vendors and other third-parties have carried SPF patches in some cases.

  • F2FS Adds New Mount Options With Linux 5.13, Other Improvements - Phoronix

    The Flash-Friendly File-System (F2FS) updates for Linux 5.13 have been submitted in providing the latest features for this flash-optimized file-system.

    One of the new mount options with F2FS for this kernel is "checkpoint_merge". Under the "checkpoint_merge" option, a kernel thread is used for handling F2FS checkpoints. "Once we start to manage the IO priority along with blk-cgroup, the checkpoint operation can be processed in a lower priority under the process context. Since the checkpoint holds all the filesystem operations, we give a higher priority to the checkpoint thread all the time."

  • Linux's Perf Tools Prepares For Intel Alder Lake, Adds New AMD Zen 3 Events - Phoronix

    Linux's perf tooling for dealing with hardware performance counters and associated monitoring has seen a number of nice updates for the Linux 5.13 kernel cycle.

    As usual, Intel continues to lead on the perf front for exposing their hardware's many performance counters and ensuring good integration for Linux profiling and analysis. With Linux 5.13 there is now support for hybrid PMUs in preparing for forthcoming heterogeneous processor designs like Alder Lake with a mix of Core and Atom CPU cores.

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Dilution and Misuse of the "Linux" Brand

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The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

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.