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Friday, 20 Sep 19 - Tux Machines is a community-driven public service/news site which has been around for over a decade and a half and primarily focuses on GNU/LinuxSubscribe now Syndicate content

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Android Leftovers

Filed under
Android

Wisconsin Broadcasters Clinic Preview: Raspberry Pi

Filed under
Linux
Interviews

The Raspberry Pi is a single board SOC (system on a chip) computer that is about the size of a deck of cards. It runs a ARMCore version of Debian Linux in a standard configuration but can also run Ubuntu Linux, several other more obscure OSes, and Windows 10 IOT (If you like the Microsoft [non]security model). The basic Raspberry Pi model lists at $35 US so it is a very cost effective solution for those broadcast applications that would normally require a full blown PC to just loaf along and do one thing.

I have implemented several applications for the Raspberry Pi for our studios and transmitters for Cumulus Chicago. We will be showing, hands-on, several of these applications at the “Nuts and Bolts” session of the Wisconsin Broadcasters fall show. My first application was porting Anthony Eden’s Livewire Simple Delegation Switcher to the Pi. At that point it only ran on Windows in a windowed configuration. I needed a border-less configuration with large buttons to use as a monitor routing panel to select which audio went to overhead speakers in Sales, Promotions, and common areas. Since the code is open source, I modified it to fit my needs. Since that time, Anthony has posted Raspberry Pi configuration instructions on his GIT repository web site.

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AMD EPYC 7642 Benchmarks: The Rome 48 Core CPU That Easily Takes On Intel's Xeon Platinum 8280

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Graphics/Benchmarks

Since the AMD EPYC 7002 series "Rome" launch at the beginning of August, it's been known how AMD's top-end (aside from the newly-announced EPYC 7H12) EPYC 7742 easily outperforms the Intel Xeon Platinum 8280 in most real-world benchmarks. The EPYC 7742 not only outperforms the Xeon Platinum 8280 in raw performance but also at a significantly lower cost and it gets even better with the EPYC 7642. We have been testing the EPYC 7642 48-core processors and even there the performance is generally ahead of a Xeon Platinum 8280 while being about half the cost of that flagship non-AP Intel Xeon Scalable Cascadelake processor.

Complementing our recent EPYC 7302 and EPYC 7402 benchmarks, today we are focused on the EPYC 7642 as the Rome 48-core / 96-thread processor. This 48 core processor has a 2.3GHz base clock and 3.3GHz boost clock while having 256MB of L3 cache, eight DDR4-3200 memory channels, 128 PCIe 4.0 lanes, and other features in common with the EPYC 7742 and other Rome processors. The EPYC 7642 carries a 50MHz base clock speed advantage over the 64 core EPYC 7742 but a 100MHz lower boost clock speed as the principal differences aside from the core/thread count. Both of these CPUs carry a 225 Watt TDP.

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Plasma 5.16.90 (Plasma 5.17 Beta) Available for Testing

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KDE

Are you using Kubuntu 19.04 Disco Dingo, our current Stable release? Or are you already running our development builds of the upcoming 19.10 Eoan Ermine?

We currently have Plasma 5.16.90 (Plasma 5.17 Beta) available in our Beta PPA for Kubuntu 19.04 and 19.10.

This is a Beta Plasma release, so testers should be aware that bugs and issues may exist.

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Raspberry Pi 4 getting hot? A closer look

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Linux

I hope that will all arrive in time for me to try it out over the weekend, so I can pass along some more information about temperatures, and about what pieces fit together in which cases, if any.

Finally, the Raspberry Pi Foundation says that they are working on several software and firmware changes that should help bring the temperature of the Pi 4 down.

Hopefully those will be released soon - but even if they are, I don't expect that they will improve the situation by more than 5 degrees or so, and given how hot the Pi 4 runs, that is not enough to eliminate the need for the kind of hardware measures I am looking at now.

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Top Open Source Video Players for Linux

Filed under
Linux
OSS

You can watch Hulu, Prime Video and/or Netflix on Linux. You can also download videos from YouTube and watch them later or if you are in a country where you cannot get Netflix and other streaming services, you may have to rely on torrent services like Popcorn Time in Linux.

Watching movies/TV series or other video contents on computers is not an ‘ancient tradition’ yet. Usually, you go with the default video player that comes baked in with your Linux distribution (that could be anything).

You won’t have an issue utilizing the default player – however, if you specifically want more open-source video player choices (or alternatives to the default one), you should keep reading.

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Manjaro 18.1: Goes Arch One Better

Filed under
Linux
Reviews

Manjaro Linux's in-house system tools, easy installation application and better range of software packages make it a better Arch-based distro than Arch Linux itself. Manjaro offers much more than a pure Arch Linux environment.

Regardless of which desktop style you select, the welcome screen introduces Manjaro tools and get-acquainted details such as documentation, support tips, and links to the project site.

You can get a full experience in using the live session ISOs without making any changes to the computer's hard drive. That is another advantage to running Manjaro Linux over a true Arch distro. Arch distros usually do not provide live session environments. Most that do lack any automatic installation launcher from within the live session.

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Games: Valve, Hot Lava, Drawn Down Abyss and More

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Gaming
  • A French court has ruled that Valve should allow people to re-sell their digital games

    Valve and game developers have a bit of a fight on their hands here, with a French court ruling that Valve should allow users to re-sell their digital games.

    Reported by the French website Next Inpact, the French consumers group UFC Que Choisir had a victory against Valve as French courts have ruled against them on the topic of reselling digital content. From what I've read and tried to understand, the courts have basically said that when you buy something on Steam it is indeed a proper purchase and not a subscription.

    Valve has been ordered to pay damages at €20K plus €10K to cover some costs. On top of that, they will also have to publish the judgement on Steam's home page (presumably only for users in France) and for it to remain visible for three months. If they don't, they will get a fine for each day of €3K. To Valve though, that's likely pocket change. The bigger issue though, is how other countries inside and outside the EU could follow it.

  • Hot Lava from Klei Entertainment is in the works for Linux

    Just recently Klei Entertainment (Don't Starve, Oxygen Not Included) released their amusing parkour game Hot Lava and it's not only planned for Linux they're actually working on it.

    It looks and sounds like a ridiculous amount of fun too, a 3D platformer inspired by the classic kids game. I'm sure everyone has played it at some point in their lives. Get a bunch of pillows and cushions, throw them around and don't touch the floor! Klei managed to turn that into a pretty good looking game PC game.

  • Post-apocalyptic road-trip strategy game Overland has officially released, some thoughts

    After a few years in Early Access on itch.io, Finji have officially released their post-apocalyptic road-trip strategy game Overland.

  • Dota 2 is going through multiple big ban waves and some matchmaking changes

    Valve are trying to clean up the Dota 2 community and make matchmaking better, with some big changes being done.

    First up, let's talk a little about the recent major ban waves. Valve said they have removed players from Dota 2 with "exceptionally low behavior scores" and they will continue to do so regularly, which is good and very much needed to keep the online community healthy. They have also done a second ban wave for anyone who has been "detected of violating the Steam Service Agreement that prevents the purchase or sale of Steam accounts"—ouch. A third wave happened, to remove players who've been using "exploits to gain an advantage over other players" and they will be adjusting how they detect such things over the coming weeks.

    Not only that, bans will also now block the phone number associated with the account permanently, so people will have to setup a new phone making it more difficult for nuisance players to come right back. Linking directly with that, Valve said they closed a hole that allowed "a large number of users to play ranked without a unique phone number attached" to help against smurf accounts. On top of all that again, to gain access to Ranked play you need to have 100 hours logged in the game.

  • Drawn Down Abyss takes an action platformer and adds in card deck-building for abilities

    Platformers are probably the most common type of game available on any platform and yet, some developers are still able to make them seem a little unique.

    Drawn Down Abyss is one such game, a pixel art action-focused platformer. The difference here, is they're pulling in the card-based deck-building for your abilities. Deck-building is massively popular right now, it's one of those things that one or two games did really well and now more want to try it. I'm happy about this, I'm a fan of collecting cards and using them to battle with so trying it out with an action platformer has piqued my interest.

  • Top-down racer Bloody Rally Show looks great in the new trailer

    One racing game I am genuinely excited about is Bloody Rally Show, a top-down racer that looks genuinely good and it has a fresh trailer up to show off recent development progress.

    It will fully supported Linux too, as I tested out previously. One of the reasons I'm excited about this, is that it firmly reminds me of some classic early racers from the Amiga only with everything turned up a notch or two. Not only that, something of a rarity in racing games is that it will have a fully featured campaign story mode with cut-scenes and all. This campaign mode can even be played in local co-op.

OpenZFS Could Soon See Much Better Deduplication Support

Filed under
Linux

This is good news for OpenZFS performance assuming the dedup support is punctually opened up and is an acceptable state for quickly landing in this ZFS file-system code used by Linux with "ZFS On Linux" and in the process of by the likes of FreeBSD.

The ZFS file-system has supported data deduplication for the past decade. However, it's not widely recommended due to being very heavy on RAM usage as well as relatively taxing on the CPU, so it will be interesting to see just how effective is the Panzura implementation.

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today's howtos and programming leftovers

Filed under
Development
HowTos

Become A Linux Foundation Certified Sysadmin

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News

The Linux Foundation is offering beginner sysadmin and advanced sysadmin training and certification bundle at more than 65% off. You have better career prospect as a certified Linux professional.
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Audiocasts/Shows: Linux in the Ham Shack and Linux Headlines

Filed under
GNU
Linux
  • LHS Episode #302: The End of Kenwood

    Welcome to Episode 302 of Linux in the Ham Shack. In this short topic episode, the hosts discuss the potential end of Kenwood in the amateur radio market, emcom in Montucky, Storm Area 51, HF on satellites, a huge update for PulseAudio, the Linux 5.3 kernel and much more. Thank you for listening and have a fantastic week.

  • 09/19/2019 | Linux Headlines

    Fresh init system controversy at the Debian project, a more scalable Samba, and a big release for LLVM.

    Plus GitHub's latest security steps and a new version of OBS Studio.

When Diverse Network ASICs Meet A Unifying Operating System

Filed under
OS

And it has also been a decade since switch upstart Arista Networks launched its Extensible Operating System, or EOS, which is derived from Linux.

[...]

The cross-platform nature of ArcOS, coupled with its ability to run in any function on the network, could turn out to be the key differentiator. A lot of these other NOSes were point solutions that could only be deployed in certain parts of the network, and that just creates animosity with the incumbent vendors that dominate the rest of the networking stack. Given the mission-critical nature of networking in the modern datacenter, it costs a great deal to qualify a new network operating system, and it can take a lot of time. If ArcOS can run across more platforms, qualify faster, and do more jobs in the network, then, says Garg, it has a good chance of shaking up switching and routing. “That totally changes the business conversation and the TCO advantages that we can bring to a customer across the entirety of their network.”

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Server: Kubernetes/OpenShift, OpenStack, and Red Hat's Ansible

Filed under
Red Hat
Server
  • 9 steps to awesome with Kubernetes/OpenShift presented by Burr Sutter

    Burr Sutter gave a terrific talk in India in July, where he laid out the terms, systems and processes needed to setup Kubernetes for developers. This is an introductory presentation, which may be useful for your larger community of Kubernetes users once you’ve already setup User Provisioned Infrastructure (UPI) in Red Hat OpenShift for them, though it does go into the deeper details of actually running the a cluster. To follow along, Burr created an accompanying GitHub repository, so you too can learn how to setup an awesome Kubernetes cluster in just 9 steps.

  • Weaveworks Named a Top Kubernetes Contributor

    But anyone who knows the history of Weaveworks might not be too surprised by this. Weaveworks has been a major champion of Kubernetes since the very beginning. It might not be too much of a coincidence that Weaveworks was incorporated only a few weeks after Kubernetes was open sourced, five years ago. In addition to this, the very first elected chair of the CNCF’s Technical Oversight Committee, responsible for technical leadership to the Cloud Native Foundation was also headed up by our CEO, Alexis Richardson(@monadic) (soon to be replaced by the awesome Liz Rice (@lizrice) of Aqua Security).

  • Improving trust in the cloud with OpenStack and AMD SEV

    This post contains an exciting announcement, but first I need to provide some context!

    Ever heard that joke “the cloud is just someone else’s computer”?

    Of course it’s a gross over-simplification, but there’s more than a grain of truth in it. And that raises the question: if your applications are running in someone else’s data-centre, how can you trust that they’re not being snooped upon, or worse, invasively tampered with?

  • Red Hat OpenStack Platform 15 Enhances Infrastructure Security and Cloud-Native Integration Across the Open Hybrid Cloud

    Red Hat, Inc., the world's leading provider of open source solutions, today announced the general availability of Red Hat OpenStack Platform 15, the latest version of its highly scalable and agile cloud Infrastructure-as-a-Service (IaaS) solution. Based on the OpenStack community’s "Stein" release, Red Hat OpenStack Platform 15 adds performance and cloud security enhancements and expands the platform’s ecosystem of supported hardware, helping IT organizations to more quickly and more securely support demanding production workloads. Given the role of Linux as the foundation for hybrid cloud, customers can also benefit from a more secure, flexible and intelligent Linux operating system underpinning their private cloud deployments with Red Hat Enterprise Linux 8.

  • Red Hat Ansible Automation Accelerates Past Major Adoption Milestone, Now Manages More Than Four Million Customer Systems Worldwide

    Red Hat, Inc., the world's leading provider of open source solutions, today announced that more than four million customer systems worldwide are now automated by Red Hat Ansible Automation. Customers, including Energy Market Company, Microsoft, Reserve Bank of New Zealand and Surescripts all use Red Hat Ansible Automation to automate and orchestrate their IT operations, helping to expand automation across IT stacks.

    According to a blog post by Chris Gardner with Forrester Research, who was the author of The Forrester Wave™: Infrastructure Automation Platforms, Q3 2019, "Infrastructure automation isn’t just on-premises or the cloud. It’s at the edge and everywhere in between."1 Since its launch in 2013, Red Hat Ansible Automation has provided a single tool to help organizations automate across IT operations and development, including infrastructure, networks, cloud, security and beyond.

Top 15+ Best Script Writing Software for Linux in 2019

Filed under
Software

Script writing software is designed to play a vital role for writers from different writing sectors. As a newbie, it may not be simple to use. But, after a certain period, it comes handy for creating scripts for films, novels, and television programs. Linux has to offer a bunch of tools for script writing for both beginners and professionals. There is a wide range of applications that are open source and free. Moreover, if you want to get some extra bit of advanced features, you may need to spend some bucks.

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Programming: Python, Node.js and LLVM

Filed under
Development
  • uwsgi weirdness with --http

    Instead of upgrading everything on my server, I'm just starting from scratch. From Ubuntu 16.04 to Ubuntu 19.04 and I also upgraded everything else in sight. One of them was uwsgi. I copied various user config files but for uwsgi things didn't very well. On the old server I had uwsgi version 2.0.12-debian and on the new one 2.0.18-debian. The uWSGI changelog is pretty hard to read but I sure don't see any mention of this.

  • Wingware Blog: Viewing Arrays and Data Frames in Wing Pro 7

    Wing Pro 7 introduced an array and data frame viewer that can be used to inspect data objects in the debugger. Values are transferred to the IDE according to what portion of the data is visible on the screen, so working with large data sets won't slow down the IDE.

    The array viewer works with Pandas, numpy, sqlite3, xarray, Python's builtin lists, tuples, and dicts, and other classes that emulate lists, tuples, or dicts.

  • Solving Sequence Problems with LSTM in Keras: Part 2

    This is the second and final part of the two-part series of articles on solving sequence problems with LSTMs. In the part 1 of the series, I explained how to solve one-to-one and many-to-one sequence problems using LSTM. In this part, you will see how to solve one-to-many and many-to-many sequence problems via LSTM in Keras.

    Image captioning is a classic example of one-to-many sequence problems where you have a single image as input and you have to predict the image description in the form of a word sequence. Similarly, stock market prediction for the next X days, where input is the stock price of the previous Y days, is a classic example of many-to-many sequence problems.

    In this article you will see very basic examples of one-to-many and many-to-many problems. However, the concepts learned in this article will lay the foundation for solving advanced sequence problems, such as stock price prediction and automated image captioning that we will see in the upcoming articles.

  • Voronoi Mandalas

    I started with Carlos Focil's mandalapy code, modifying the parameters until I had a design I liked. I decided to make the Voronoi diagram show both points and vertices, and I gave it an equal aspect ratio. Carlos' mandalapy code is a port of Antonio Sánchez Chinchón's inspiring work drawing mandalas with R, using the deldir library to plot Voronoi tesselations.

  • Python Code Kata: Fizzbuzz

    A code kata is a fun way for computer programmers to practice coding. They are also used a lot for learning how to implement Test Driven Development (TDD) when writing code. One of the popular programming katas is called FizzBuzz. This is also a popular interview question for computer programmers.

  • why python is the best-suited programming language machine learning

    Machine Learning is the hottest trend in modern times. According to Forbes, Machine learning patents grew at a 34% rate between 2013 and 2017 and this is only set to increase in the future. And Python is the primary programming language used for much of the research and development in Machine Learning. So much so that Python is the top programming language for Machine Learning according to Github.

    Python is currently the most popular programming language for research and development in Machine Learning. But you don’t need to take my word for it! According to Google Trends, the interest in Python for Machine Learning has spiked to an all-new high with other ML languages such as R, Java, Scala, Julia, etc. lagging far behind.

  • Node.js now available in Haiku

    As some have already known for a long time, many platforms have had support for writing software in JavaScript or TypeScript with the help of the Node.js runtime and over the years, much of the software written by developers these days have gradually been written in either of those languages. However, Haiku has lacked a Node.js port for quite sometime and it wasn’t possible to run or develop JavaScript based software or libraries that depended on the Node.js runtime. Now I can say that Node.js is available for Haiku and can be downloaded from HaikuDepot on 64 bit (32 bit support is being worked on). The version which is currently available is 12.3.1 and is already being updated to the latest version at the time of this writing to 12.10.0 and support for the upcoming LTS version is also coming to HaikuPorts. Several patches have been upstreamed by members of the HaikuPorts team to projects such as libuv (cross-platform async I/O library), GN, etc and we hope to upstream to larger projects like V8 (Google’s JavaScript engine used in Chromium and QtWebEngine) and the Node.js project, which will ease the bringup of a future Node LTS release for Haiku.

  • Node.js Brought To BeOS-Inspired Haiku Open-Source OS

    Haiku as the open-source operating system that still maintains BeOS compatibility continues tacking on modern features and support for software well past the days of BeOS.

    The newest major piece of software working on BeOS is Node.js, including support for its NPM package manager.

  • LLVM 9.0 Released With Ability To Build The Linux x86_64 Kernel, Experimental OpenCL C++

    It's coming almost one month behind schedule, but LLVM 9.0 is out today along with the Clang 9.0 C/C++ compiler and associated sub-projects for this open-source compiler infrastructure.

    LLVM 9.0 is an exciting release with bringing the ability to build the mainline Linux x86_64 kernel using LLVM/Clang 9.0 now that "asm goto" support was finally added. The AArch64 support was in better standing previously but now at long last the mainline Clang 9.0 compiler can build the current Linux kernel releases with not needing any extra patches on either side, just point the kernel build CC to Clang.

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More in Tux Machines

Plasma 5.16.90 (Plasma 5.17 Beta) Available for Testing

Are you using Kubuntu 19.04 Disco Dingo, our current Stable release? Or are you already running our development builds of the upcoming 19.10 Eoan Ermine? We currently have Plasma 5.16.90 (Plasma 5.17 Beta) available in our Beta PPA for Kubuntu 19.04 and 19.10. This is a Beta Plasma release, so testers should be aware that bugs and issues may exist. Read more

Raspberry Pi 4 getting hot? A closer look

I hope that will all arrive in time for me to try it out over the weekend, so I can pass along some more information about temperatures, and about what pieces fit together in which cases, if any. Finally, the Raspberry Pi Foundation says that they are working on several software and firmware changes that should help bring the temperature of the Pi 4 down. Hopefully those will be released soon - but even if they are, I don't expect that they will improve the situation by more than 5 degrees or so, and given how hot the Pi 4 runs, that is not enough to eliminate the need for the kind of hardware measures I am looking at now. Read more

Top Open Source Video Players for Linux

You can watch Hulu, Prime Video and/or Netflix on Linux. You can also download videos from YouTube and watch them later or if you are in a country where you cannot get Netflix and other streaming services, you may have to rely on torrent services like Popcorn Time in Linux. Watching movies/TV series or other video contents on computers is not an ‘ancient tradition’ yet. Usually, you go with the default video player that comes baked in with your Linux distribution (that could be anything). You won’t have an issue utilizing the default player – however, if you specifically want more open-source video player choices (or alternatives to the default one), you should keep reading. Read more

Manjaro 18.1: Goes Arch One Better

Manjaro Linux's in-house system tools, easy installation application and better range of software packages make it a better Arch-based distro than Arch Linux itself. Manjaro offers much more than a pure Arch Linux environment. Regardless of which desktop style you select, the welcome screen introduces Manjaro tools and get-acquainted details such as documentation, support tips, and links to the project site. You can get a full experience in using the live session ISOs without making any changes to the computer's hard drive. That is another advantage to running Manjaro Linux over a true Arch distro. Arch distros usually do not provide live session environments. Most that do lack any automatic installation launcher from within the live session. Read more