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Programming: Firefox Binaries, Python, GCC, Kotlin, C++ and Rust

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  • Stack Write Traffic In Firefox Binaries

    I became interested in how much CPU memory write traffic corresponds to "stack writes". For x86-64 this roughly corresponds to writes that use RSP or RBP as a base register (including implicitly via PUSH/CALL). I thought I had pretty good intuitions about x86 machine code, but the results surprised me.

  • Louis-Philippe Véronneau: membernator -- validate membership cards

    I currently work part-time for student unions in Montreal and they often have large general assemblies (more than 2000 people). As you can likely figure out by yourself, running through paper lists to validate people's identity is a real PITA and takes quite a long time.

    For example, even if you have 4 people checking names, if validating someone's identity takes 5 seconds on average (that's pretty fast), it takes around 40 minutes to go through 2000 people.

    Introducing membernator, a python program written using pygame that validates membership cards against a CSV database! The idea is to use barcode scanners to scan people's school ID cards and see if they are in our digital lists. Hopefull, it will make our GA process easier for everyone.

  • Developer Toolset 8.1 and GCC 8.3 now available for Red Hat Enterprise Linux 7

    Red Hat Developer Toolset delivers GCC, GDB, and a set of complementary development tools for Red Hat Enterprise Linux via two release trains per year. We are pleased to share that Developer Toolset 8.1 with GCC 8.3 is now available and supported on Red Hat Enterprise Linux 7.

    The Red Hat Developer Toolset 8.1 release includes many enhancements and changes, but here are a few of the highlights...

  • Finished converting all the buildfiles to groovy and downgraded to gradle 4.4.1; week 3+ update

    During the third week I mainly spent my time converting all the buildfiles in the "dist" task graph to groovy from kotlin-dsl.

    I finished converting all the build files from kotlin-dsl to groovy. I then proceeded to build the entire project with only the subprojects required for the dist task so that we can avoid converting all the uneeded subproject buildfiles to groovy. Ran tests on the binary obtained from the newly onverted project and compared it to the test result on an original unconverted project. Since the new project only contains the needed subprojects this new project is unable to run all the needed tests. So inorder to overcome this we copy the binaries built by our new project and run the tests using the original unaltered projects. The compiler test task we need is "compilerTest"; this is the only aplicalbe test for out build binary from the "dist" task. I have run "distTest" for the unaltered project and uploaded it here; "distTest" task encompasses compilerTest task within it. Here is the log of the "compilerTest" run on the geenrated binaries.

  • Intel Developing "Data Parallel C++" As Part Of OneAPI Initiative

    Intel announced an interesting development in their oneAPI initiative: they are developing a new programming language/dialect.

    Intel originally began talking about oneAPI last December for optimizing code across CPUs / GPUs / FPGAs and as part of "no transistor left behind." Early details sounded similar to HSA while with time more bits have become known while the big reveal isn't expected until Q4'2019 when it will enter beta.

    We've known OpenCL will take a big role and their LLVM upstreaming effort around their SYCL compiler back-end. The SYCL single-source C++ programming standard from The Khronos Group we've expected Intel to use as their basis for oneAPI while now it seems they are going a bit beyond just targeting SYCL.

  • You can't buy DevOps [Ed: Poor article about mere buzzwords]
  • This Week in Rust 291

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.