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October 2018

today's leftovers

Filed under
Misc
  • The AMD Threadripper ECC DDR4-2666 Testing That Wasn't

    Recently in our forums there has been a lot of interest in Threadripper 2 builds using ECC DDR4 memory and the impact on performance, especially now with the Threadripper 2 family being rounded out by the 2920X and 2970WX. So I set out to do some DDR4-2666 ECC UDIMM testing with Threadripper 2, but that hasn't turned out well.

  • Representing KDE at XDC 2018

    Last month the X.Org Developer?s Conference (XDC) was held in A Coru�a, Spain. I took part as a Plasma/KWin developer. My main goal was to simply get into contact with developers from other projects and companies working on open source technology in order to show them that the KDE community aims at being a reliable partner to them now and in the future.

    Instead of recounting chronologically what went down at the conference let us look at three key groups of attendees, who are relevant to KWin and Plasma: the graphics drivers and kernel developers, upstream userland and colleagues working on other compositor projects.

  • Chris Lamb: Free software activities in October 2018

    We intend to maintain changes to these modules under their original open source licenses and applying only free and open fixes and updates. You can find out more at goodformcode.com.

OSS: Openwashing, FUD, Open Hardware, Open Source as a Model for Global Education and More

Filed under
OSS
  • It's not okay to pretend your software is open source

    One of my largest complaints with the Commons Clause is that it hijacks language used by open source projects to proliferate nonfree software, and encourages software using it to do the same. Instead of being a new software license, it tries to stick itself onto other respected licences - often the Apache 2.0 license. The name, “Commons Clause”, is also disingenuous, hijacking language used by respected entities like Creative Commons. In truth, the Commons Clause serves to remove software from the commons1. Combining these problems gives you language like “Apache+Commons Clause”, which is easily confused with Apache Commons.

  • No Free Lunches In Software: Understanding Open Source Code Use In Your Business [Ed: We're back to the 1990s? Far too much FUD like this from Forbes about FOSS, now without the paywall/spywall.]
  • Nybble open source robotic kitten

    Those of you looking to learn a little more about robotics and electronics in general may be interested in a new open source robotic kit called Nybble. Which allows you to build the “world’s cutest open source robotic kitten”. Watch the demonstration video below to learn more about the robotic kit which can be easily programmed and is now available to back via Indiegogo with early bird pledges available from $200.

  • Open Source as a Model for Global Education

    While education leaders may be appalled by the closed-border policies coming out of Washington, they often indulge in similar protectionist rhetoric, as highlighted by a recent Wilson Center report.
    The language of “national competitiveness” is common in higher education, especially in discussions of China and the U.S. You hear it in contradictory concerns about too many international students (they will take scarce places at elite institutions! They will steal intellectual property!) and too few (our institutions won't keep up if they stop sending students! We need their tuition to stay afloat!).
    What these worries have in common is the false premise that education is a race and if we don't hurry others will beat us.
    Whereas education competition borrows from the language of economics, an earlier model of educational transfer drew on culture and politics. Transfer was based on importing and exporting from one education system to another. In the 19th and early 20th centuries, American missionaries established colleges across the Middle East and Asia. Philanthropists established international academic exchanges like the Rhodes Scholarship.

  • Chrome OS 70 Brings Better Tablet Mode to Chromebooks, Here’s What’s New

    2-in-1 Chromebooks have existed for a few years now, and have become more and more popular as Chromebooks gained support for touch-based Android apps. But, using a convertible Chromebook just wasn’t as smooth as using a tablet. Part of this was the fact that you’re still holding a laptop, but the bigger part was the user interface.

    Now, both of those problems are effectively solved. Chrome tablets and detachables are available and with Chrome OS 70, there’s a much more touch-friendly user interface.

  • 8x8 buys Jitsi open source video conferencing from Atlassian

    8x8 has acquired the open source video conferencing company Jitsi from Atlassian in the cloud telephony vendor's latest move to expand its business communications portfolio.

    Jitsi hosts an open source video conferencing server that developers can use to build WebRTC-based video products. It also runs a free platform for online meetings that developers can embed into their websites or mobile apps using Jitsi's APIs and SDKs.

Reports on ActiveState Developer Survey/DigitalOcean’s 'CURRENTS A Seasonal Report on Developer Trends in the Cloud: Open Source Edition'

Filed under
Development
  • ActiveState Developer Survey Examines Open Source Challenges
  • Report: Developers are not clear on how to get involved in the open-source community

    After 20 years, the open-source community is stronger than ever. However, a recent report found developers while they had more time and know-how to contribute to open-source projects. According the report, respondents don’t quite know where to begin and start to question their skills and time.

    Additionally, developers say they are either too intimidated to contribute, lack the resources, or do not get enough time to contribute from their company.

    DigitalOcean’s CURRENTS A Seasonal Report on Developer Trends in the Cloud: Open Source Edition is based off of more than 4,300 international developers, and focuses specifically on how companies are using open source and why they support the community.

  • Developers: Want fulfilling work? Here are the 10 most satisfying coding languages

    Developers choose a programming language for a project based on a number of factors, including what components that project needs, and what languages they are most comfortable with. However, developers are much more satisfied working in some languages than others, according to a Tuesday report from ActiveState.

    Adding a new programming language to the workplace was ranked as the largest challenge for developers, with 56% ranking this difficult or very difficult, the report found. This was followed by dependencies (24%), environmental configuration (20%), and reproducible builds (18%).

  • The 10 most popular platforms developers use to code projects

    On a typical day, the largest portion of developers (37%) spend only 2-4 hours programming, according to a Tuesday report from ActiveState. Of the 1,400 developers and IT professionals surveyed, 14% said they spend one hour per day programming, 31% spend 5-7 hours, and 19% spend 8+ hours doing coding work daily.

    When starting new software projects, 26% of developers surveyed said they start a new project quarterly, the report found. Another 23% start new projects monthly, while 17% said rarely. Fewer in the field said they begin a new software project twice a year (14%), weekly (12%), annually (7%), or daily (1%), according to the report.

BSD: Review of 'Absolute FreeBSD', Introducing the OpenBSD Virtualization FAQ

Filed under
BSD
  • Book Review: Absolute FreeBSD (3rd Edition)

    FreeBSD is a free and open source operating system for many different kinds of computers. FreeBSD's based upon BSD, the version of UNIX developed at the University of California, Berkeley. FreeBSD is an alternative to Linux or Windows-based system. You can run almost all apps written in Perl, Python, PHP and other programming languages. FreeBSD heavily used by Netflix, EMC, IBM, Juniper, NetApp, Apple, Sony, and others. Absolute FreeBSD (3rd ed) book aims to be the complete guide to FreeBSD. Let us see why Michael W. Lucas' FreeBSD system administration books so favorite among Unix lovers.

  • Introducing the OpenBSD Virtualization FAQ

    Now getting started with OpenBSD virtualization has become even easier: The OpenBSD FAQ has a new Virtualization section, written mainly by Solene Rapenne (solene@) and added to the site in this commit, that offers an introduction to the concepts as well as instructions on how to get started with vmm(4).

GNU: New RMS Interview by Rob Lucas, RMS Biography, GNU Spotlight and GNU Bash

Filed under
GNU
  • "Every non-free program is an injustice": Richard Stallman on the Free Software Movement

    In the September–October 2018 issue of the New Left Review, Rob Lucas interviews software engineer and free-software advocate Richard Stallman, who is best known for spearheading the development of the GNU/Linux operating system in the 1980s. Stallman began his career at the MIT Artificial Intelligence Lab in the 1970s, which at the time was animated by a spirit of open collaboration and creative exploration. But when the lab began to develop proprietary software and partner with telecommunications companies, Stallman saw the “injustice” of non-free software and struck out on his own.

  • RICHARD STALLMAN TALKING TO THE MAILMAN: Interview by Rob Lucas

    I grew up in Manhattan, born in 1953. I was a behavioural problem—I couldn’t go to a public school without getting in trouble—and started working with computers at an early age. In 1969, during my last year of high school, an IBM lab let me come and use their computers. In 1970 I had a summer job there. They gave me a project to do, implementing a certain algorithm to see how well it would work. I finished that in a few weeks, so they let me spend the rest of the summer being paid to write whatever I felt like. I went to Harvard to study physics, and carried on programming there. Towards the end of my first year I started visiting computer labs to look at their manuals, to see how the computers differed. When I visited the Artificial Intelligence Lab at MIT, they didn’t have much by way of a manual, because they had developed their own time-sharing system. The administrator there decided to hire me more or less straight away. So although I graduated from Harvard in 1974, I had actually been an employee at MIT for three years. Harvard’s computer was a lot better to play with than IBM’s, but it didn’t have a lot of memory, whereas MIT’s computer at the AI Lab had plenty. Not only that, they let me change the time-sharing system; in fact, that was my job—they hired me to work on that system. I added lots of features to lots of different programs—whatever I thought of, or people suggested to me, that seemed like a good idea, I would implement and then people would use it. And this was absolutely delightful—and gratifying to make things that people used and appreciated—so I kept working there. From that point on, I did programming using the machine at MIT.

  • Innovative biography of RMS returns to GNU Press Shop

    In 2002, Sam Williams wrote Free as in Freedom, a biography of Richard M. Stallman. In its epilogue, Williams expressed hope that choosing to distribute his book under the GNU Free Documentation License would enable and encourage others to share corrections and their own perspectives through modifications to his work.

    Free as in Freedom (2.0) is Stallman's revision of the original biography. While preserving Williams's viewpoint, it includes factual corrections and extensive new commentary by Stallman, as well as new prefaces by both authors written for the occasion. It is a rare kind of biography, where the reader has the benefit of both the biographer's original words and the subject's response.

  • GNU Spotlight with Mike Gerwitz: 8 new GNU releases!

    gama-2.01
    gcc-6.5.0
    gvpe-3.1
    help2man-1.47.8
    mes-0.18
    mtools-4.0.19
    parallel-20181022
    units-2.18

    For announcements of most new GNU releases, subscribe to the info-gnu mailing list: https://lists.gnu.org/mailman/listinfo/info-gnu.

    To download: nearly all GNU software is available from https://ftp.gnu.org/gnu/, or preferably one of its mirrors from https://www.gnu.org/prep/ftp.html. You can use the URL https://ftpmirror.gnu.org/ to be automatically redirected to a (hopefully) nearby and up-to-date mirror.

  • Normalizing Filenames and Data with [GNU] Bash

    Yeah, that many years. Almost 13 years of writing about shell scripts and lightweight programming within the Linux environment. I've covered a lot of ground, but I want to go back to something that's fairly basic and talk about filenames and the web.

    It used to be that if you had filenames that had spaces in them, bad things would happen: "my mom's cookies.html" was a recipe for disaster, not good cookies—um, and not those sorts of web cookies either!

    As the web evolved, however, encoding of special characters became the norm, and every Web browser had to be able to manage it, for better or worse. So spaces became either "+" or %20 sequences, and everything else that wasn't a regular alphanumeric character was replaced by its hex ASCII equivalent.

Kernel: Cedrus, EXT4, Linux in Android

Filed under
Linux
  • Cedrus VPU Decoder Driver Being Mainlined With New Linux Media Request API

    The Cedrus VPU driver developed by Bootlin for supporting the Allwinner VPU open-source support via crowdfunding is set to hit the mainline kernel for Linux 4.20~5.0.

    The Cedrus VPU driver is what was developed over six months this year at Bootlin via a crowd-funded internship that raised over thirty-six thousand dollars (USD) for the effort.

  • EXT4 Getting Fixes For A Number Of Ancient Bugs -- Back To The Linux 2.6 Days With EXT3

    While investigating EXT4 resize troubles on RHEL6/RHEL7 boxes with OpenVZ kernels, Vasily Averin uncovered several bugs within the EXT4 code. The oldest of which bugs date back to the Linux 2.6.19 kernel in the EXT3 code that was imported when creating the EXT4 file-system.

  • Episode 5: Linux is Personal

    Doc Searls and Katherine Druckman talk to Corbin Champion about Userland, an easy way to run Linux on your Android device, and other new projects.

Security: Podman, Microsoft and Updates

Filed under
Security

Braiins OS Is The First Fully Open Source, Linux-based Bitcoin Mining System

Filed under
OS
GNU
Linux

Braiins Systems, the company behind the Slush Pool, has announced Braiins OS. The creators of this bitcoin mining software have claimed that it’s the world’s first fully open source system for cryptocurrency embedded devices.

The initial release of the operating system is based on OpenWrt, which is basically a Linux operating system for embedded devices. You can find its code here.

Those who know about OpenWrt must be aware of the fact that it’s very versatile. As a result, Braiins OS can also be extended in different applications in future.

In a Medium post, Braiins Systems has said that different weird cases of non-standard behavior of mining devices cause tons of issues. With this new mining software, the company wishes to make things easier for mining pool operators and miners.

Read more

Also: Linux Lite 4.2 Final Released

Linux Mint 19.1 Will Feature a ‘Modern’ Desktop Layout

Filed under
GNU
Linux
Ubuntu

We’re expecting the release of Linux Mint 19.1 to arrive just before the Christmas holidays and, like your nearest and dearest, it’ll be bringing a few surprises with it.

The Linux 19.1 release will include the Cinnamon 4.0 desktop environment by default and this, Mint’s devs say, will “look more modern” than it does not.

How? By using a new panel layout.

Read more

Programming: Rust 2018, Textile, Samsung, Apache Subversion 1.11.0 and More

Filed under
Development
  • SDL 2.0.9 Released As The Latest Version For This Cross-Platform Game Library

    SDL 2.0.9 is now available as the latest feature update to this cross-platform, widely-used library to help with abstracting operating system specific bits across operating systems and hardware from mobile devices to gaming PCs. SDL2 continues to be critically important for most Linux games.

  • AMD Publishes Zen 2 Compiler Patch "znver2" Exposing Some New Instructions

    With GCC 9 feature development ending in November, AMD today sent out their first patch enabling Zen 2 support in the GNU Compiler Collection via the new "znver2" target.

  • Help test Rust 2018

    Back in July, we talked about “Rust 2018”. In short, we are launching a cycle of long-term milestones called “Editions”. Editions are a way to capture the progress delivered incrementally by our ordinary six-week release cycle – and focus Rust libraries, tooling, and documentation cohesively around it. Editions will be selected roughly every three years: Rust 1.0 was “Rust 2015” and Rust 1.31 will be “Rust 2018”. Each edition has a theme; Rust 2015’s was “stability”, and Rust 2018’s is “productivity.”

    We’ve been testing Rust 2018 for a while already, and things are looking pretty good! We have just under six weeks until Rust 1.31 ships, and so we’d appreciate it if you could give the beta a try.

  • Textile – simple lightweight markup language

    Textile is a lightweight and simple markup language that makes it easy to structure content for articles, blogs, wikis, and documentation. It’s origin traces back to the blogging software Textpattern.

    Textile converts its marked-up text input to valid, well-formed XHTML and also inserts character entity references for apostrophes, opening and closing single and double quotation marks, ellipses and em dashes. This lets users create documents, blogs and web pages without needing to write HTML.

  • 39 No Frills Keyboard Shortcuts every Developer Should Follow

    What used to be 27 is now 39 - Due to all the great comments, I've amended the list to add a few more suggestions, thanks to all that contributed.

    Shortcuts are the most productive thing that a developer can add to their repertoire that will aid them through their entire career. Learning how to use your system and tools will improve your productivity and in general make traversing all your windows and apps a breeze. The mouse is a great, tool, but if you can do it quicker, more effectively without your hands leaving your keyboard then you should!

  • What a Coding Dojo taught me about agile

    Of course, we often associate “agile” with specific practices. Let’s take the example of two agile practices that were used together during a Coding Dojo event. A Coding Dojo is a great way of uncovering better ways of developing… I’ll stop there; you know the rest of the sentence by now. A Coding Dojo is a great way to get better at something by practicing with others in a safe and controlled environment.

  • Samsung Comments On Open-Source Restructuring

    Over the weekend we reported on the Samsung Open-Source Group reportedly shutting down with many of the former OSG staffers in the US no longer employed by Samsung. We've now received comments both from Samsung in the US and Korea on the matter.

  • Apache Subversion 1.11.0 released

    Version 1.11.0 of the Subversion source-code management system is out. Changes include improvements to the shelving feature, better resolution of merge conflicts, an experimental checkpointing feature, and more; see the release notes for details.

More in Tux Machines

Programming/Development: C++, Go, Mozilla/Firefox and Python

  • Deliverable 1 : [✓]
    Seems okay, far better than the initial results. Although I should say, I deviated from what I thought I would need to write. First I assumed that I don’t have to write another boost::graph wrapper for KisPaintDevice, but I had to. That was one heck of an experience. In one of the last few posts, I ranted on Dmitry’s interpretation of the Graph, turns out we were on the same page but I understood his explanation the wrong way. I should put more attention to details from now on I guess. All the pixels are connected to each other, but they only have an edge between them if they are adjacent. If in center, the out degree would be 8, if in corners, 3 and if in edges, 5. There are some other cases too, but I will leave them for the moment. While writing the wrapper, I also got to know some of the cool features and techniques of C++, which I will be writing posts on as soon as I get some time, concepts, traits, avoiding virtual functions and what not. It is commendable that how boost approaches boost::astar_search, there is not a single virtual function, you don’t have to inherit anything (you can though for safety), just templates and traits, you are done.
  • Go Creeping In
    I’ve seen the inside of the Google and Amazon tech stacks. There are common threads that run through them and also, I bet, through most BigTechCos. Here and there down the stack is a lot of C++ and vestigial remnants from earlier days, Perl or PHP or whatever. Out in front of humans, of course, JS. But in between, there are oceans and oceans of Java; to a remarkable degree, it runs the Internet. Except for, here and there, you find a small but steadily increasing proportion of Go.
  • Stand by for FPR14 SPR1 chemspill
    Mozilla has shipped a fix for MFSA2019-18 in Firefox 67.0.3 and 60.7.1. This exploit has been detected in the wild, and while my analysis indicates it would require a PowerPC-specific attack to be exploitable in official TenFourFox builds (the Intel versions may be directly exploited, however), it could probably cause drive-by crashes and we should therefore ship an urgent fix as well. The chemspill is currently undergoing confidence tests and I'm shooting to release builds before the weekend. For builders, the only change in FPR14 SPR1 is the patch for bug 1544386, which I will be pushing to the repo just as soon as I have confirmed the fix causes no regressions.
  • PyPI Now Supports Two-Factor Login via WebAuthn
  • Understanding Python assignment
  • How to Publish Your Own Python Package to PyPI
  • PyCoder’s Weekly: Issue #373 (June 18, 2019)
  • EuroPython 2019: Community Discounts
  • EuroPython 2019: Inviting European Python Conference Organizers

today's howtos

All Linux, all the time: Supercomputers Top 500

Starting at the top, two IBM-built supercomputers, Summit and Sierra, at the Department of Energy's Oak Ridge National Laboratory (ORNL) in Tennessee and Lawrence Livermore National Laboratory in California, respectively to the bottom -- a Lenovo Xeon-powered box in China -- all of them run Linux. Linux supports more hardware architectures than any other operating system. In supercomputers, it supports both clusters, such as Summit and Sierra, the most common architecture, and Massively Parallel Processing (MPP), which is used by the number three computer Sunway TaihuLight. When it comes to high-performance computing (HPC), Intel dominates the TOP500 by providing processing power to 95.6% of all systems included on the list. That said, IBM's POWER powers the fastest supercomputers. One supercomputer works its high-speed magic with Arm processors: Sandia Labs' Astra, an HPE design, which uses over 130-thousand Cavium ThunderX2 cores. And, what do all these processors run? Linux, of course. . 133 systems of the Top 500 supercomputers are using either accelerator or co-processor setups. Of these most are using Nvidia GPUs. And, once more, it's Linux conducting the hardware in a symphony of speed. Read more

Red Hat and SUSE Leftovers

  • Are DevOps certifications valuable? 10 pros and cons
  • Kubernetes 1.15: Enabling the Workloads
    The last mile for any enterprise IT system is the application. In order to enable those applications to function properly, an entire ecosystem of services, APIs, databases and edge servers must exist. As Carl Sagan once said, “If you wish to make an apple pie from scratch, you must first invent the universe.” To create that IT universe, however, we must have control over its elements. In the Kubernetes universe, the individual solar systems and planets are now Operators, and the fundamental laws of that universe have solidified to the point where civilizations can grow and take root. Discarding the metaphor, we can see this in the introduction of Object Count Quota Support For Custom Resources. In English, this enables administrators to count and limit the number of Kubernetes resources across the broader ecosystem in a given cluster. This means services like Knative, Istio, and even Operators like the CrunchyData PostgreSQL Operator, the MongoDB Operator or the Redis Operator can be controlled via quota using the same mechanisms that standard Kubernetes resources have enjoyed for many releases. That’s great for developers, who can now be limited by certain expectations. It would not benefit the cluster for a bad bit of code to create 30 new PostgreSQL clusters because someone forgot to add a “;” at the end of a line. Call them “guardrails” that protect against unbounded object growth in your etcd database.
  • Red Hat named HPE’s Partner of the Year at HPE Discover 2019
    For more than 19 years, Red Hat has collaborated with HPE to develop, deliver and support trusted solutions that can create value and fuel transformation for customers. Our work together has grown over these nearly two decades and our solutions now include Linux, containers and telecommunications technologies, to name just a few. As a testament to our collaboration, HPE has named Red Hat the Technology Partner of the Year 2019 for Hybrid Cloud Solutions.
  • Demystifying Containers – Part II: Container Runtimes
    This series of blog posts and corresponding talks aims to provide you with a pragmatic view on containers from a historic perspective. Together we will discover modern cloud architectures layer by layer, which means we will start at the Linux Kernel level and end up at writing our own secure cloud native applications. Simple examples paired with the historic background will guide you from the beginning with a minimal Linux environment up to crafting secure containers, which fit perfectly into todays’ and futures’ orchestration world. In the end it should be much easier to understand how features within the Linux kernel, container tools, runtimes, software defined networks and orchestration software like Kubernetes are designed and how they work under the hood.
  • Edge > Core > Cloud: Transform the Way You Want
    For more than 25 years, SUSE has been very successful in delivering enterprise-grade Linux to our customers. And as IT infrastructure has shifted and evolved, so have we. For instance, we enabled and supported the move to software-defined data centers as virtualization and containerization technologies became more prevalent and data growth demanded a new approach.
  • SUSE OpenStack Cloud Technology Preview Takes Flight
    We are pleased to announce that as of today we are making a technology preview of a containerized version of SUSE OpenStack Cloud available that will demonstrate a future direction for our product. The lifecycle management for this technology preview is based on an upstream OpenStack project called Airship, which SUSE has been using and contributing to for some time. This follows our open / open policy of upstream first and community involvement.