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Thursday, 26 Apr 18 - Tux Machines is a community-driven public service/news site which has been around for over a decade and primarily focuses on GNU/LinuxSubscribe now Syndicate content

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Quick Roundup

Type Title Author Repliessort icon Last Post
Story Diamonds are a girl's best friend srlinuxx 10/04/2005 - 11:45pm
Story AMD not out of the Race yet srlinuxx 10/04/2005 - 11:53pm
Story techiemoe rants: srlinuxx 10/08/2009 - 7:01pm
Story More BS from the Evil One. srlinuxx 10/04/2005 - 11:27pm
Story Doom3 for those with little or no PC! srlinuxx 11/04/2005 - 12:49am
Story Linux leaders at open-source summit srlinuxx 10/04/2005 - 11:35pm
Story This months Cosmo srlinuxx 06/02/2005 - 4:03am
Story Mandrake's Clustering Again srlinuxx 11/04/2005 - 4:58pm
Story No Case - No Problem srlinuxx 11/04/2005 - 5:35am
Story ATI has released 64-Bit drivers srlinuxx 10/04/2005 - 11:38pm

today's leftovers

Filed under
Misc
  • Heptio Debuts Gimbal Kubernetes Load Balancer Project

    Kubernetes startup Heptio has added another project to its roster of open-source efforts that provide expanded capabilities for container orchestration users.

  • Heptio Launches Kubernetes Load Balancing Application
  • The Role of Site Reliability Engineering in Microservices

    You can always spot the hot jobs in technology: they’re the ones that didn’t exist 10 years ago. While Site Reliability Engineers (SREs) did definitely exist a decade ago, they were mostly inside Google and a handful of other Valley innovators. Today, however, the SRE role exists everywhere, from Uber to Goldman Sachs, everyone is now in the business of keeping their sites online and stable.

    While SREs are hotshots in the industry, their role in a microservices environment is not just a natural fit that goes hand-in-hand, like peanut butter and jelly. Instead, while SREs and microservices evolved in parallel inside the world’s software companies, the former actually makes life far more difficult for the latter.

  • Lying with statistics, distributions, and popularity contests on Cooking With Linux (without a net)

    It's Tuesday and that means it's time for Cooking With Linux (without a net), sponsored and supported by Linux Journal. Today, I'm courting controversy by discussing numbers, OS popularity, and how to pick the right Linux distribution if you want to be where are the beautiful people hang out. And yes, I'll do it all live, without a net, and with a high probability of falling flat on my face.

  • Voyage open sources its approach to autonomous vehicle safety

    In an effort to improve autonomous vehicle safety, Voyage is open sourcing its Open Autonomous Safety (OAS) library that contains the company’s internal safety procedures, materials, and test code that is intended to supplement the existing safety programs at autonomous vehicle startups. Voyage is the self-driving business from the educational organization Udacity.

  • Hitchhiker’s Guide to KubeCon Europe

    The cloud native community is gathering in Copenhagen next week for KubeCon + CloudNativeCon Europe! Here’s your guide to the talks and events you won’t want to miss. Meet the Red Hat and CoreOS team members all week long, May 1-4 at booth D-E01.

  • Event - "GNU Health Con 2018" (Las Palmas de Gran Canaria, Spain)

    GNU Health is this year holding the III International GNU Health Conference, GNU Health Con 2018. This conference will gather the community of activists and developers who have been working on the project during the past 10 years.

  • ONNX: the Open Neural Network Exchange Format

    The good news is that the battleground is Free and Open. None of the big players are pushing closed-source solutions. Whether it is Keras and Tensorflow backed by Google, MXNet by Apache endorsed by Amazon, or Caffe2 or PyTorch supported by Facebook, all solutions are open-source software.

    Unfortunately, while these projects are open, they are not interoperable. Each framework constitutes a complete stack that until recently could not interface in any way with any other framework. A new industry-backed standard, the Open Neural Network Exchange format, could change that.

  • L.A. Lawmakers Looking To Take Legal Action Against Google For Not Solving Long-Running City Traffic Problems

    The city's government believes the traffic/mapping app has made Los Angeles' congestion worse. That the very body tasked with finding solutions to this omnipresent L.A. problem is looking to hold a private third party company responsible for its own shortcomings isn't surprising. If a third-party app can't create better traffic flow, what chance do city planners have? But beyond the buck-passing on congestion, the city may have a point about Waze making driving around Los Angeles a bit more hazardous.

    For several months, it's been noted that Waze has been sending drivers careening down the steepest grade in the city -- Baxter Street. Drivers seeking routes around Glendale Ave. traffic choke points have been routed to a street with a 32% grade, increasing the number of accidents located there and generally resulting in barely-controlled mayhem. When any sort of precipitation falls from the sky, the city goes insane. Drivers bypassing Glendale are now hurtling down a steep, water-covered hill, compounding the problem.

  • Even Microsoft's lost interest in Windows Phone: Skype and Yammer apps killed

    Microsoft’s given users of its collaboration apps on Windows Phone under a month’s warning of their demise.

    A support note from late last week advises that “Windows phone apps for Skype for Business, Microsoft Teams, and Yammer are retiring on May 20, 2018.”

    “Retiring” means all three will vanish from the Microsoft store on May 20, with differing results.

  • Should You Build Your Own DIY Security System?

"Native Linux apps in Chrome OS" and Kernel News From LWN

Filed under
Linux
  • Native Linux apps in Chrome OS will have a slick, electric Material Design theme

    The Chrome OS developers have been working out the stylistic elements of what you’ll see once you open your first native Linux apps in Chrome OS, and they’ve opted for Adapta, a popular Material Design-inspired Gtk theme that can be used on many of your favorite GNU/Linux distributions.

    For those of you not keeping track, the Chrome OS developers have been busy baking native container functionality into Chrome OS that allows the user-friendly startup of regular Linux applications in containers-within-VMs. This project, codename “Crostini,” is the largest change to Chrome OS since Android apps were introduced. Containers allow for applications to run in their own dedicated environment in isolation of the host OS – like a virtual machine, except unlike a VM, it doesn’t virtualize the whole OS to make the application work, it just bundles up the application and necessary baggage into an executable package.

  • The rhashtable documentation I wanted to read

    The rhashtable data structure is a generic resizable hash-table implementation in the Linux kernel, which LWN first introduced as "relativistic hash tables" back in 2014. I thought at the time that it might be fun to make use of rhashtables, but didn't, until an opportunity arose through my work on the Lustre filesystem. Lustre is a cluster filesystem that is currently in drivers/staging while the code is revised to meet upstream requirements. One of those requirements is to avoid duplicating similar functionality where possible. As Lustre contains a resizable hash table, it really needs to be converted to use rhashtables instead — at last I have my opportunity.

    It didn't take me long to discover that the rhashtable implementation in Linux 4.15 is quite different from the one that originally landed in Linux 3.17, so the original LWN introduction is now barely relevant. I also quickly discovered that the in-kernel documentation was partially wrong, far from complete, and didn't provide any sort of "getting started" guide. Nevertheless I persisted and eventually developed a fairly complete understanding of the code, which seems worth sharing. This article gives an introduction to the use of the rhashtable interfaces without getting into too many internal implementation details. A followup will explain how rhashtables work internally and show how some of the mechanism details leak though the interfaces.

  • The second half of the 4.17 merge window

    By the time the 4.17 merge window was closed and 4.17-rc1 was released, 11,769 non-merge changesets had been pulled into the mainline repository. 4.17 thus looks to be a typically busy development cycle, with a merge window only slightly more busy than 4.16 had. Some 6,000 of those changes were pulled after last week's summary was written.

Software: LibreNMS, Pidgin, Wireshark and More

Filed under
Software
  • Featured Network Monitoring Tool for Linux

    LibreNMS is an open source, powerful and feature-rich auto-discovering PHP based network monitoring system which uses the SNMP protocol. It supports a broad range of operating systems including Linux, FreeBSD, as well as network devices including Cisco, Juniper, Brocade, Foundry, HP and many more.

  • Get started with Pidgin: An open source replacement for Skype

    Technology is at an interesting crossroads, where Linux rules the server landscape but Microsoft rules the enterprise desktop. Office 365, Skype for Business, Microsoft Teams, OneDrive, Outlook... the list goes on of Microsoft software and services that dominate the enterprise workspace.

    What if you could replace that proprietary software with free and open source applications and make them work with an Office 365 backend you have no choice but to use? Buckle up, because that is exactly what we are going to do with Pidgin, an open source replacement for Skype.

  • Wireshark, World’s Most Popular Network Protocol Analyzer, Gets Major Release

    Wireshark, world’s most popular open-source network protocol analyzer, has been updated to a new stable series, versioned 2.6, a major update that adds numerous new features and improvements, as well as support for new protocols.

    A lot of user interface improvements have been made since Wireshark 2.5, and Wireshark 2.6 appears to be the last release that will support the legacy GTK+ graphical user interface, as the development team announced it wouldn't be supported in the next major series, Wireshark 3.0.

    New features in Wireshark 2.6 include support for HTTP Request sequences, support for MaxMind DB files, Microsoft Network Monitor capture file support, as well as LoRaTap capture interface support. The IP map feature was removed, as well as support for the GeoIP and GeoLite Legacy databases.

  • A look at terminal emulators, part 2

    A comparison of the feature sets for a handful of terminal emulators was the subject of a recent article; here I follow that up by examining the performance of those terminals. This might seem like a lesser concern, but as it turns out, terminals exhibit surprisingly high latency for such fundamental programs. I also examine what is traditionally considered "speed" (but is really scroll bandwidth) and memory usage, with the understanding that the impact of memory use is less than it was when I looked at this a decade ago (in French).

  • Counting beans—and more—with Beancount

    It is normally the grumpy editor's job to look at accounting software; he does so with an eye toward getting the business off of the proprietary QuickBooks application and moving to something free. It may be that Beancount deserves a look of that nature before too long but, in the meantime, a slightly less grumpy editor has been messing with this text-based accounting tool for a variety of much smaller projects. It is an interesting system, with a lot of capabilities, but its reliance on hand-rolling for various pieces may scare some folks off.

  • Firefox release speed wins

    Sylvestre wrote about how we were able to ship new releases for Nightly, Beta, Release and ESR versions of Firefox for Desktop and Android in less than a day in response to the pwn2own contest.

    People commented on how much faster the Beta and Release releases were compared to the ESR release, so I wanted to dive into the releases on the different branches to understand if this really was the case, and if so, why?

    [..]

    We can see that Firefox 59 and 60.0b4 were significantly faster to run than ESR 52 was! What's behind this speedup?

  • LibreOffice 6.1 Alpha 1 Is Ready To Roll For Advancing The Open-Source Office

    LibreOffice 6.1 Alpha 1 was tagged overnight as the first development release towards this next updated open-source office suite release succeeding the big LibreOffice 6.0.

    LibreOffice 6.1.0 is set to be released by the middle of August and for that to happen the alpha release has now been hit followed by the beta release this time next month, and the release candidates to come through the month of July. The feature freeze and branching occurs at next month's beta stage while the hard code freeze is expected for the middle of July.

GNOME Development and Events

Filed under
GNOME
  • Dependencies with code generators got a lot smoother with Meson 0.46.0

    Most dependencies are libraries. Almost all build systems can find dependency libraries from the system using e.g. pkg-config. Some can build dependencies from source. Some, like Meson, can do both and toggle between them transparently. Library dependencies might not be a fully solved problem but we as a community have a fairly good grasp on how to make them work.

    However there are some dependencies where this is not enough. A fairly common case is to have a dependency that has some sort of a source code generator. Examples of this include Protocol Buffers, Qt's moc and glib-mkenums and other tools that come with Glib. The common solution is to look up these binaries from PATH. This works for dependencies that are already installed on the system but fails quite badly when the dependencies are built as subprojects. Bootstrapping is also a bit trickier because you may need to write custom code in the project that provides the executables.

  • Expanding Amtk to support GUIs with headerbar

    I initially created the Amtk library to still be able to conveniently create a traditional UI without using deprecated GTK+ APIs, for GNOME LaTeX. But when working on Devhelp (which has a modern UI with a GtkHeaderBar) I noticed that some pieces of information were duplicated in order to create the menus and the GtkShortcutsWindow.

  • GLib/GIO async operations and Rust futures + async/await

    Unfortunately I was not able to attend the Rust+GNOME hackfest in Madrid last week, but I could at least spend some of my work time at Centricular on implementing one of the things I wanted to work on during the hackfest. The other one, more closely related to the gnome-class work, will be the topic of a future blog post once I actually have something to show.

  • Introducing Chafa
  • Infra Hackfest
  • Madrid GNOME+Rust Hackfest, part 3 (conclusion)

    I'm back home now, jetlagged but very happy that gnome-class is in a much more advanced a state than it was before the hackfest. I'm very thankful that practically everyone worked on it!

  • GNOME loves Rust Hackfest in Madrid

    The last week was the GNOME loves Rust hackfest in Madrid. I was there, only for the first two days, but was a great experience to meet the people working with Rust in GNOME a great community with a lot of talented people.

  • GNOME Mutter 3.29.1 Now Works With Elogind, Allows For Wayland On Non-Systemd Distros

    GNOME Mutter 3.29.1 has been released as the first development snapshot of this window manager / compositor in the trek towards GNOME 3.30.

    Mutter 3.29.1 overshot the GNOME 3.29.1 release by one week, but for being a first development release of a new cycle has some pretty interesting changes. Among the work found in Mutter 3.29.1 includes:

    - Mutter can now be built with elogind. That is the systemd-logind as its own standalone package. This in turn allows using Mutter with its native Wayland back-end on Linux distributions using init systems besides systemd.

KDE: Plasma Widgets, PIM Update and More

Filed under
KDE
  • 3 Students Accepted for Google Summer of Code 2018

    Since 2006, we have had the opportunity for Google to sponsor students to help out with Krita. For 2018 we have 3 talented students working over the summer. Over the next few months they will be getting more familiar with the Krita code base and working on their projects. They will be blogging about their experience and what they are learning along the way. We will be sure to share any progress or information along the way.

    Here is a summary of their projects and what they hope to achieve.

  • Plasma widgets – Beltway Bandit Unlimited

    The concept of addons is an interesting one. At some point over the past decade or two, companies developing (successful) software realized that bundling an ever-growing code base into their products in order to meet the spiraling tower of requests from their users would result in unsustainable bloat and complexity that would not warrant the new functionality. And so, the idea of addons was born.

    Addons come in many flavors – extensions, plugins, applets, scripts, and of course, widgets. A large number of popular programs have incorporated them, and when done with style, the extra functionality becomes as important as the core application itself. Examples that come to mind: Firefox, Notepad++, VLC, Blender. And then, there’s the Plasma desktop environment. Since inception, KDE has prided itself on offering complete solutions, and the last incarnation of its UI framework is no different. Which begs the question, what, how and why would anyone need Plasma widgets? We explore.

    [...]

    Conclusion

    A good mean needs no seasoning, indeed. And Plasma is a proof of that, with the widgets the best example. Remarkably, this desktop environment manages to juggle the million different usage needs and create a balanced compromise that offers pretty much everything without over-simplifying the usage in any particular category. It’s a really amazing achievement, because normally, the sum of all requests is a boring, useless muddle.

    Plasma’s default showing is rich, layered, complex yet accessible, and consistent. And that means it does not really need any widgets. This shows. The extras are largely redundant, with some brilliant occasional usage models here and there, but nothing drastic or critical that you don’t get out of the box. This makes Plasma different from most other addons-blessed frameworks, as they do significantly benefit from the extras, and in some cases, the extensions and plugins are critical in supplementing the missing basics.

    And so, if you wonder, whether you’ll embark on a wonderful journey of discovery and fun with Plasma widgets, the answer is no. Plasma offers 99% of everything you may need right there, and the extras are more to keep people busy rather than give you anything cardinal. After all, if it’s missing, it should be an integral part of the desktop environment, and the KDE folks know this. So if you’re disappointed with this article, don’t be. It means the baseline is solid, and that’s where you journey of wonders and adventure should and will be focused. 

  • My KDE PIM Update

    This blog post is long overdue, but now that I’m back home from the KDE PIM Sprint in Toulouse, which took place last weekend, there’s some more news to report.

  • KDAB at QtDay 2018

    QtDay is the yearly Italian conference about Qt and Qt-related technologies. Its 2018 edition (the seventh so far!) will be once more in the beautiful city of Florence, on May 23 and 24. And, once more, KDAB will be there.

  • Google Summer of Code 2018 with KDE

    It’s been 2 days since the GSoC accepted student list was announced and I’m still getting goosebumps thinking about the moment I saw my name on the website.

    I started contributing to open source after attending a GSoC session in our college by one of our senior and a previous GSoC student with KDE: Aroonav Mishra. I was very inspired by the program and that defined the turning point of my life.

    [...]

    Then I came across GCompris and it caught my eye. I started contributing to it and the mentors are really very helpful and supportive. They always guided me whenever I needed any help  or was stuck at anything. Under their guidance, I learnt many things during the period of my contributions. I had never thought I would get this far.

GNU/Linux Distributions

Filed under
GNU
Linux

Devices: 'Open' Hardware and Android

Filed under
Linux
Hardware

Security: Amazon, Windows, and Email security in 2018

Filed under
Security

Graphics Leftovers

Filed under
Graphics/Benchmarks
  • AMDGPU Linux Kernel Driver Gets Patches For Vega M Support - Intel Kabylake G

    Earlier this month Vega M support came to RadeonSI OpenGL, with Vega M being the Radeon graphics found within Intel's Kabylake G processors. There was then Vega M support for the RADV Vulkan driver but these user-space drivers won't work without the kernel bits and now there is that support with 32 AMDGPU DRM patches.

    Alex Deucher of AMD last night mailed out the AMDGPU Direct Rendering Manager driver patches for supporting accelerated graphics on Vega M / Kabylake G. These patches are fairly straight-forward and mostly involve support for loading new firmware files for "VegaM" and then mostly taking the driver's existing Polaris code-paths. Yes, the GPU for Intel is advertised as being part of the "Vega" family, but from the RadeonSI/RADV/AMDGPU driver patches, the indications are that it's really more in common with Polaris at least from the driver perspective.

  • NVIDIA 396.18.05 Linux Vulkan Driver Released With Fixes

    Just a week after the NVIDIA 396.18.02 Linux driver beta is an updated Linux driver build (and for Windows too).

  • X.Org Server 1.20 Git Corrects DRI3 Fallout For Non-Modesetting DDX Drivers

    With the recent release candidates to the long overdue X.Org Server 1.20, OpenGL rendering has been broken when using DDX drivers like Intel and Nouveau rather than the generic xf86-video-modesetting. That was fixed today.

  • Jim Keller Reportedly Joins Intel After AMD, Tesla Stint

    Legendary CPU designer Jim Keller has reportedly joined Intel following his brief stint at Tesla after leading the Zen team at AMD.

Games Leftovers

Filed under
Gaming
  • Puzzle With Your Friends is now available

    As you might imagine, Puzzle With Your Friends allows you to build a series of puzzles by either yourself or cooperatively with a friend. It’s a casual sort of game, without much in the way of pressure or even points to worry about. Building the puzzle at your own pace is all that matters.

  • Pillars of Eternity II will be getting three post-launch content packs

    Pillars of Eternity II [Official Site] is the sequel to Obsidian’s successful RPG title and is a direct continuation of the original game’s story. Players resume the role of the Watcher and will be traveling to the Deadfire Archipelago where there’s pirates and hazards aplenty. I’m looking forward to seeing how this one shapes up as I generally enjoyed the first game, especially after some of the bigger irritations were dealt with by updates.

  • Get ready to face the Chaos Trials as 'Wizard of Legend' releases May 15th with Linux support

    Wizard of Legend [Official Site], the fast-paced dungeon crawler with rogue-like elements is going to officially release on May 15th with Linux support.

    The game was funded on Kickstarter, way back in July of 2016 with around $72K secured. It's been a little while since we followed it, but early impressions were good and it had a Linux demo build even back then.

  • A fresh Steam Beta Client finally fixes Unreal Engine screenshots on Linux

    Nothing huge here, but it's nice that Valve have finally fixed another issue that plagued Linux users for some time.

    For those who don't know, Steam has a built-in screenshot tool (Hit F12 while in-game) and you can then upload them to Steam directly for others to see. The problem is that UE4 games would just give a completely black shot and it's been a bug since as far back as 2014 (possibly even earlier) so it's good to see it squashed.

  • Space God is an incredibly colourful top-down shooter now on Linux

    We're certainly not short on top-down shooters, but Unreal Engine powered Space God is worth a look for sure.

  • Midnight Ultra, a colourful retro-inspired FPS is now on Linux

    Inspired by DOOM, Quake, and action games from a time long gone, Midnight Ultra [Official Site] is a very colourful FPS that just added Linux support.

Ubuntu 18.04 LTS is out

Filed under
Ubuntu

Ubuntu 18.04 LTS has been released. The new version of Ubuntu is available in Desktop, Server, Cloud and core variants, and it is a long-term support release which means that the Desktop, Server, Core and Kylin releases will be supported for five years until April 2023.

You can download the release version by following links in the release notes. The main Ubuntu website and download pages have yet to be updated.

Ubuntu systems running Ubuntu 16.04 LTS or Ubuntu 17.10 can be upgraded in the following way:

Read more

What Stratis learned from ZFS, Btrfs, and Linux Volume Manager

Filed under
Linux

The reasons vary. First, let's consider ZFS. Originally developed by Sun Microsystems for Solaris (now owned by Oracle), ZFS has been ported to Linux. However, its CDDL-licensed code cannot be merged into the GPL-licensed Linux source tree. Whether CDDL and GPLv2 are truly incompatible is a subject for debate, but the uncertainty is enough to make enterprise Linux vendors unwilling to adopt and support it.

Btrfs is also well-established and has no licensing issues. For years it was the "Chosen One" for many users, but it just hasn't yet gotten to where it needs to be in terms of stability and features.

So, fuelled by a desire to improve the status quo and frustration with existing options, Stratis was conceived.

Read more

3 questions about Kata Containers answered

Filed under
Server
OSS

Kata Containers is a new open source project licensed under Apache 2.0 and governed by the OpenStack Foundation that combines the speed of containers with the security of virtual machines. Kata Containers will be featured in a number of upcoming sessions at OpenStack Summit and KubeCon EU. Can't make it to either of those events? We've brought you answers to three of the top questions we hear from users.

Read more

How to Upgrade from Ubuntu 17.10 or Ubuntu 16.04 LTS to Ubuntu 18.04 LTS

Filed under
Ubuntu
HowTos

Before we go through the upgrade process in more detail, there are a few things you should know. First and foremost, make sure you have a recent backup of your most important files on an external drive, do it now! Second of all, if you're upgrading from Ubuntu 16.04 LTS, you'll have to deal with some major desktop changes if you use Unity.

Ubuntu 16.04 LTS (Xenial Xerus) uses the Unity desktop environment by default, but Ubuntu 18.04 LTS uses the GNOME desktop environment with a highly customized interface to make it look like Unity, which Canonical said it won't be removed during the upgrade process and will remain available as an alternative if you still want to use it.

Read more

Best Linux apps of 2018

Filed under
Linux

While everyone knows that most Linux distributions (distros) are free to download, not everybody is aware that you also have access to thousands of cost-free applications through your operating system’s package manager.

Many of the more user-friendly distros will come with a selection of software preinstalled to help you get started, but there are many more apps out in the wild, under continuous development.

Read more

Things to do After Installing Ubuntu 18.04

Filed under
HowTos

This list of things to do after installing Ubuntu 18.04 helps you get started with Bionic Beaver for a smoother desktop experience.
Read more

Openwashing: Microsoft, Apple and Symphony Software Foundation

Filed under
OSS

Linux Foundation: Real-Time Linux (RT Linux), LF Deep Learning Foundation, OpenTracing and More

Filed under
Linux
  • Developers: Prepare Your Drivers for Real-Time Linux

    Although Real-Time Linux (RT Linux) has been a staple at Embedded Linux Conferences for years -- here’s a story on the RT presentations in 2007 -- many developers have viewed the technology to be peripheral to their own embedded projects. Yet as RT, enabled via the PREEMPT_RT patch, prepares to be fully integrated into the mainline kernel, a wider circle of developers should pay attention. In particular, Linux device driver authors will need to ensure that their drivers play nice with RT-enabled kernels.

    At the recent Embedded Linux Conference in Portland, National Instruments software engineer Julia Cartwright, an acting maintainer on a stable release of the RT patch, gave a well-attended presentation called “What Every Driver Developer Should Know about RT.” Cartwright started with an overview of RT, which helps provide guarantees for user task execution for embedded applications that require a high level of determinism. She then described the classes of driver-related problems that can have a detrimental impact to RT, as well as potential resolutions.

    One of the challenges of any real-time operating system is that most target applications have two types of tasks: those with real-time requirements and latency sensitivity, and those for non-time critical tasks such as disk monitoring, throughput, or I/O. “The two classes of tasks need to run together and maybe communicate with one another with mixed criticality,” explained Cartwright. “You must resolve two different degrees of time sensitivity.”

    One solution is to split the tasks by using two different hardware platforms. “You could have an Arm Cortex-R, FPGA, or PLD based board for super time-critical stuff, and then a Cortex-A series board with Linux,” said Cartwright. “This offers the best isolation, but it raises the per unit costs, and it’s hard to communicate between the domains.”

  • Clarifying the Linux Real Time Issue

    I recently posted an article about the increasing development and availability of Linux-powered automation devices. This is a clear industry trend that’s unavoidable for anyone following the automation technology industry.

    Shortly after posting the article, I heard from a reader who wrote: “I read your article and I am surprised that you would promote the idea that anyone would use Linux for anything critical. It isn’t even a real-time control system. It can be used for non-critical applications, but the article implies that industry is adopting it for everything.”

    This reader brings up a valid point. Linux is not a real-time OS in and of itself. As Vibhoosh Gupta of GE Automation & Controls noted in the original article, GE uses “Type 1 hypervisor technology to run a real-time OS, such as VxWorks, running traditional control loops alongside our PAC Edge technology operating on Linux.”

    [...]

    The Linux Foundation launched the RTL (Real Time Linux) Collaborative Project in October 2015. According to the Foundation, the project was “founded by industry experts to advance technologies for the robotics, telecom, manufacturing and medical industries. The aim of the RTL collaborative project is mainlining the PREEMPT_RT patch.”

    While there are plenty of mission critical applications running Linux OS with real-time extensions—as highlighted by GE, Opto and Wago—the Linux Foundation notes on its site that there remains “much work to be done.”

  • Linux Launches Deep Learning Foundation For Open Source Growth In AI

    The Linux Foundation has launched the LF Deep Learning Foundation, an umbrella organisation which will support and sustain open source innovation in artificial intelligence, machine learning, and deep learning. The organisation will strive to make these critical new technologies available to developers and data scientists everywhere, said a statement published by LF.

    Founding members of LF Deep Learning include Amdocs, AT&T, B.Yond, Baidu, Huawei, Nokia, Tech Mahindra, Tencent, Univa, and ZTE, among others. LF Deep Learning, members are working to create a neutral space where makers and sustainers of tools and infrastructure can interact and harmonise their efforts and accelerate the broad adoption of deep learning technologies.

  • OpenTracing: Distributed Tracing’s Emerging Industry Standard

    What was traditionally known as just Monitoring has clearly been going through a renaissance over the last few years. The industry as a whole is finally moving away from having Monitoring and Logging silos – something we’ve been doing and “preaching” for years – and the term Observability emerged as the new moniker for everything that encompasses any form of infrastructure and application monitoring. Microservices have been around for a over a decade under one name or another. Now often deployed in separate containers it became obvious we need a way to trace transactions through various microservice layers, from the client all the way down to queues, storage, calls to external services, etc. This created a new interest in Transaction Tracing that, although not new, has now re-emerged as the third pillar of observability.

  • There’s a Server in Every Serverless Platform [Ed: "Serverless" is a lie. It's a server. One that you do not control; one/s that control/s you. Even Swapnil finally or belatedly gets it. The LF really likes buzzwords.]

    Serverless computing or Function as a Service (FaaS) is a new buzzword created by an industry that loves to coin new terms as market dynamics change and technologies evolve. But what exactly does it mean? What is serverless computing?

  • Take the Open Source Job Survey from Dice and The Linux Foundation

    Interest in hiring open source professionals is on the rise, with more companies than ever looking for full-time hires with open source skills and experience. To gather more information about the changing landscape and opportunities for developers, administrators, managers, and other open source professionals, Dice and The Linux Foundation have partnered to produce two open source jobs surveys — designed specifically for hiring managers and industry professionals.

  • Automotive Linux Summit & OS Summit Japan Schedule Announced [Ed: "Brian Redmond, Microsoft" so you basically go to an event about Linux and must listen to a talk from a company which attacks Linux with patent blackmail, bribes etc.]
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GNOME Development and Events

  • Dependencies with code generators got a lot smoother with Meson 0.46.0
    Most dependencies are libraries. Almost all build systems can find dependency libraries from the system using e.g. pkg-config. Some can build dependencies from source. Some, like Meson, can do both and toggle between them transparently. Library dependencies might not be a fully solved problem but we as a community have a fairly good grasp on how to make them work. However there are some dependencies where this is not enough. A fairly common case is to have a dependency that has some sort of a source code generator. Examples of this include Protocol Buffers, Qt's moc and glib-mkenums and other tools that come with Glib. The common solution is to look up these binaries from PATH. This works for dependencies that are already installed on the system but fails quite badly when the dependencies are built as subprojects. Bootstrapping is also a bit trickier because you may need to write custom code in the project that provides the executables.
  • Expanding Amtk to support GUIs with headerbar
    I initially created the Amtk library to still be able to conveniently create a traditional UI without using deprecated GTK+ APIs, for GNOME LaTeX. But when working on Devhelp (which has a modern UI with a GtkHeaderBar) I noticed that some pieces of information were duplicated in order to create the menus and the GtkShortcutsWindow.
  • GLib/GIO async operations and Rust futures + async/await
    Unfortunately I was not able to attend the Rust+GNOME hackfest in Madrid last week, but I could at least spend some of my work time at Centricular on implementing one of the things I wanted to work on during the hackfest. The other one, more closely related to the gnome-class work, will be the topic of a future blog post once I actually have something to show.
  • Introducing Chafa
  • Infra Hackfest
  • Madrid GNOME+Rust Hackfest, part 3 (conclusion)
    I'm back home now, jetlagged but very happy that gnome-class is in a much more advanced a state than it was before the hackfest. I'm very thankful that practically everyone worked on it!
  • GNOME loves Rust Hackfest in Madrid
    The last week was the GNOME loves Rust hackfest in Madrid. I was there, only for the first two days, but was a great experience to meet the people working with Rust in GNOME a great community with a lot of talented people.
  • GNOME Mutter 3.29.1 Now Works With Elogind, Allows For Wayland On Non-Systemd Distros
    GNOME Mutter 3.29.1 has been released as the first development snapshot of this window manager / compositor in the trek towards GNOME 3.30. Mutter 3.29.1 overshot the GNOME 3.29.1 release by one week, but for being a first development release of a new cycle has some pretty interesting changes. Among the work found in Mutter 3.29.1 includes: - Mutter can now be built with elogind. That is the systemd-logind as its own standalone package. This in turn allows using Mutter with its native Wayland back-end on Linux distributions using init systems besides systemd.

KDE: Plasma Widgets, PIM Update and More

  • 3 Students Accepted for Google Summer of Code 2018
    Since 2006, we have had the opportunity for Google to sponsor students to help out with Krita. For 2018 we have 3 talented students working over the summer. Over the next few months they will be getting more familiar with the Krita code base and working on their projects. They will be blogging about their experience and what they are learning along the way. We will be sure to share any progress or information along the way. Here is a summary of their projects and what they hope to achieve.
  • Plasma widgets – Beltway Bandit Unlimited
    The concept of addons is an interesting one. At some point over the past decade or two, companies developing (successful) software realized that bundling an ever-growing code base into their products in order to meet the spiraling tower of requests from their users would result in unsustainable bloat and complexity that would not warrant the new functionality. And so, the idea of addons was born. Addons come in many flavors – extensions, plugins, applets, scripts, and of course, widgets. A large number of popular programs have incorporated them, and when done with style, the extra functionality becomes as important as the core application itself. Examples that come to mind: Firefox, Notepad++, VLC, Blender. And then, there’s the Plasma desktop environment. Since inception, KDE has prided itself on offering complete solutions, and the last incarnation of its UI framework is no different. Which begs the question, what, how and why would anyone need Plasma widgets? We explore. [...] Conclusion A good mean needs no seasoning, indeed. And Plasma is a proof of that, with the widgets the best example. Remarkably, this desktop environment manages to juggle the million different usage needs and create a balanced compromise that offers pretty much everything without over-simplifying the usage in any particular category. It’s a really amazing achievement, because normally, the sum of all requests is a boring, useless muddle. Plasma’s default showing is rich, layered, complex yet accessible, and consistent. And that means it does not really need any widgets. This shows. The extras are largely redundant, with some brilliant occasional usage models here and there, but nothing drastic or critical that you don’t get out of the box. This makes Plasma different from most other addons-blessed frameworks, as they do significantly benefit from the extras, and in some cases, the extensions and plugins are critical in supplementing the missing basics. And so, if you wonder, whether you’ll embark on a wonderful journey of discovery and fun with Plasma widgets, the answer is no. Plasma offers 99% of everything you may need right there, and the extras are more to keep people busy rather than give you anything cardinal. After all, if it’s missing, it should be an integral part of the desktop environment, and the KDE folks know this. So if you’re disappointed with this article, don’t be. It means the baseline is solid, and that’s where you journey of wonders and adventure should and will be focused. 
  • My KDE PIM Update
    This blog post is long overdue, but now that I’m back home from the KDE PIM Sprint in Toulouse, which took place last weekend, there’s some more news to report.
  • KDAB at QtDay 2018
    QtDay is the yearly Italian conference about Qt and Qt-related technologies. Its 2018 edition (the seventh so far!) will be once more in the beautiful city of Florence, on May 23 and 24. And, once more, KDAB will be there.
  • Google Summer of Code 2018 with KDE
    It’s been 2 days since the GSoC accepted student list was announced and I’m still getting goosebumps thinking about the moment I saw my name on the website. I started contributing to open source after attending a GSoC session in our college by one of our senior and a previous GSoC student with KDE: Aroonav Mishra. I was very inspired by the program and that defined the turning point of my life. [...] Then I came across GCompris and it caught my eye. I started contributing to it and the mentors are really very helpful and supportive. They always guided me whenever I needed any help  or was stuck at anything. Under their guidance, I learnt many things during the period of my contributions. I had never thought I would get this far.

GNU/Linux Distributions