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Programming Leftovers

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  • AMD Zen 3 Tuning Backported To The GCC 10 Compiler - Phoronix

    In the past few weeks since the introduction of the EPYC 7003 "Milan" processors there has finally been AMD Zen 3 "Znver3" tuning work that's been hurried into the GCC 11 compiler code-base ahead of its stable release in the coming weeks. That initial Zen 3 tuning work has also now been back-ported to the GCC 10 branch ahead of its next point release.

    The past few weeks have seen several commits to GCC Git by SUSE's Jan Hubicka for correcting/completing the Znver3 targeting being introduced in GCC 11, which should be out later this month or early next month depending upon how the rest of the cycle plays out.

  • Apache Month in Review: March 2021
  • LLVM 12.0-rc4 Released For Squaring Up This Open-Source Compiler - Phoronix

    LLVM 12.0 was supposed to be out around the end of February but blocker bugs have resulted in additional release candidates as the developers work to button up this open-source compiler stack release.

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  • Kent Fredric's CPAN distributions

    As most of you are probably aware, Kent Fredric sadly passed away earlier this year: notice from his family, on Facebook.

    Kent was a prolific contributor to CPAN and Perl. He released more than 150 distributions of his own to CPAN, but also helped countless other authors and distributions, with bug reports, puil requests, and more.

    When a CPAN author dies, their indexing permissions are dropped from PAUSE, and where they had the first-come permission, that will be passed to the pseudo-user ADOPTME. This flags the distribution as being available for adoption.

    So as of now, all of Kent's distributions are now available for adoption.

    If you look at Kent's author page on MetaCPAN, you'll see 178 distributions (at the time of writing). This means that he was the last person to release those distributions, but in a few cases he didn't have the first-come permission.

    When you look at his author page on MetaCPAN, notice the leftmost column, with the blue bars. The bars are an indication of the distribution's position on the CPAN River — a measure of how many other CPAN distributions use that distribution. The more bars, the more dependent distributions. If you hover your mouse pointer over the bars, you'll see the number of dependents.

    As you can see, many of Kent's distributions are relied on by other CPAN distributions, and in some cases by thousands. As a result, the PAUSE admins will consider adoption requests carefully, and try to ensure that such distributions are passed into safe hands.

  • 5 Python Examples to Read and Write JSON files for Encode and Decode

    JSON stands for JavaScript Object Notation, which is a format for structuring data that is very similar to the concept of maps in computer programming. Maps consists of keys and corresponding values. A key has to be unique within a map.

    JSON is light-weight format of representing data as text in a file, whose syntax is borrowed from the syntax used to create JavaScript Objects. Huge data is converted to JSON format for easy processing in various programming languages and transferring to other nodes. It is most commonly used format for requests and responses while working with API calls.

  • This Week in Rust 384
  • Jetty vs. tomcat compared

    When you want to write any Java web application, then first understand the Java application server required to run an application. However, it is not easy to select one of the Java application servers as it needs proper knowledge.

    Some amazing Java application servers like Eclipse Jetty and Apache Tomcat offer amazing features and support. Still, many people get confused while choosing one of these platforms while working on their Java web application.

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.