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IBM/Red Hat: Linux, Java, RHEL, LinuxONE

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Red Hat
  • Red Hat Scores A Huge DM Optimization For Linux 5.14 - Phoronix

    Red Hat engineers have scored an impressive performance optimization to the DeviceMapper (DM) code that is now queued up for merging with the Linux 5.14 cycle.

    The commit dm space maps: improve performance with inc/dec on ranges of blocks was summed up as, "When we break sharing on btree nodes we typically need to increment the reference counts to every value held in the node. This can cause a lot of repeated calls to the space maps. Fix this by changing the interface to the space map inc/dec methods to take ranges of adjacent blocks to be operated on."

  • Build lean Java containers with the new Red Hat Universal Base Images OpenJDK runtime images

    Red Hat Universal Base Images (UBI) contain the full Red Hat build of OpenJDK. Universal Base Images is available to anyone under the terms of the UBI end user license agreement and is fully supported for Red Hat customers. These "builder" images are designed to be suitable for building and running a wide range of Java-based applications, particularly when used in a Red Hat OpenShift environment. They contain the full Java Development Kit (JDK) including the development tools, Java compiler, Maven, and related build tooling.

    The OpenShift source-to-image (S2I) process makes it straightforward to build and update your application's source code within an OpenShift cluster, and your deployments will be updated whenever the underlying image or your application sources are updated. With this workflow, the application is layered on top of the builder image, so the deployment contains the full JDK and Maven tooling. Some developers want their deployments to be based on a slimmer base image; perhaps without Maven, or without the full JDK tooling, or both.

    To address this need, Red Hat has released new OpenJDK runtime container images, which do not contain the full JDK or other build tooling. This article explains how to use these new images within an OpenShift environment to automatically deploy your application using the S2I workflow. We will use a Quarkus quickstart as the application source.

  • Visualizing performance in Red Hat Enterprise Linux 8.4 web console

    Performance is a critical focus area of improvement with every release of Red Hat Enterprise Linux (RHEL). With RHEL 8.4, we introduced several key performance enhancements for system administrators and performance engineers to enable simpler troubleshooting experiences, richer visualization of performance metrics, and deeper performance insights. In this blog, we will go over some of these capabilities.

  • IBM LinuxONE and SUSE – Key Components of Hybrid Cloud Infrastructure for Every Business

    Evolved for the digital economy, IBM LinuxONE gives businesses the security of confidential computing, lightning-fast processing speed, and unparalleled reliability and availability features.

    IBM recently announced IBM LinuxONE III Express, the latest edition to the LinuxONE family, and for the first time, LinuxONE is available in an off-the-shelf configuration that is designed to get clients up and running quickly. This new system, coupled with SUSE Linux Enterprise Server for IBM Z and LinuxONE, now affords every business the security, performance, and open source critically needed in an open hybrid cloud. It presents a viable consolidation platform that both saves on licensing costs and enables technologies such as virtualization, cloud, containerization, and cryptography that are vital to surviving in today’s economy.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

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.