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Leftovers: KDE

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KDE
  • Introducing plasma timekeeper – an applet measuring your activity

    Have you ever wondered how much time do you spend reading emails, browsing on internet or hacking? I have! I started thinking about monitoring my activity. Reason for this was that I work from home, where I’m alone and nobody is behind my back watching what I’m actually doing. So I came with an idea to write a simple applet which tracks the time you spent in a certain application by just checking your currently active window (application). The functionality is pretty simple, you switch focus to a window where you do something, the applet starts measuring the time and update it in some interval until you switch to another window and so on. It may not be accurate in case you will be cheating, e.g. you open a video player and start watching a movie while you switch focus to another app to avoid monitoring time spent in the video player. Given this, the purpose of the applet is pretty obvious, it should be just for you, for your personal usage when you have no reason for cheating, because you are interested in these statistics.

  • How much is 1 TeV?

    We are about half way trough this WTL Sprint @CERN, so I’ve decided to post something about my experience. Actually in this post I do not want to talk about our work, probably I’ll dedicate another article to it at the end of this week, but about one of the talks we had the opportunity to listen. On monday Ezio Todesco (CERN) gave us a talk about CERN history and magnets in LHC.

  • Under the Weather

    The first is weather! It was previously announced that Plasma 5.6 will be seeing the return of the weather widget. Lots of design work and planning has been done for it and while not everything we discussed will make it in for this release I do happily get to show off our new Breeze weather icons;

  • digiKam Recipes 4.11.1 Released

    A new release of digiKam Recipes is ready for your reading pleasure. This version introduces the Basic Concepts Explained appendix that covers key terms and concepts used in digiKam. Currently, the appendix contains information about chroma subsampling, cor (bit) depth, hue, saturation, brightness, and vibrance. I plan to gradually expand the appendix with time.

  • conf.KDE.in 2016, Jaipur

    Thank you KDE India for inviting us to share our experience with 250+ budding developers and spreading the knowledge we have acquired during our projects. It was beyond just a meetup, we made many new friends and also learnt a lot from each other. I would also like to thank LNMIIT for hosting such an amazing conference and for the flawless hospitality.

  • Hug the LHC

    We passed through retina based authentication, elevators up to 80 meters high, and at the end of the cave there it was: the CMS gigantic machine.

    After the hardware stuff under the ground we saw the data center (#1 level of triggering) and the control room, where we found Plasma 4.2 running on those machines!

  • That’s over 200 Petabytes!

    Today, on the third day of the WikiToLearn Sprint at CERN hosted by KDE e.V., we had the pleasure of listening to an interesting and inspiring lecture by Professor Pere Mato Villa, who talked about Computing for Data Processing and Analysis at CERN. In approximately one hour, we were enlightened on the techniques and methods in use in the various LHC experiments to acquire and process raw data from detectors. He also explained the massive extent of the IT infrastructure that’s needed to host all the data: currently all the LHC experiments rely on distributed computing resources, accounting for roughly 350,000 CPU cores, and 400 PB of disk and tape storage combined. That’s a huge one!

  • Workaround for trouble with updating akonadi tables
  • C++ and KDE in CERN

    Some time ago, I saw that CERN people had their own clang tree with a few addons, most notable one being the C++ REPL (C++ interpreter) called cling.

    Now we had a presentation by Pere Mato from CERN who talked about their ROOT data analysis framework. It seems like a really nice and powerful piece of software.

    The software is around 50 million lines of code, mostly C++. Some of it is python, but it is only used for quick-and-dirty testing of new ideas.

  • Wiki Reorganisation

    A group of us at the CERN-based cross-team sprint are attempting to tame the wilderness of the KDE wikis – at least, TechBase and Community.

    A little bit of history is needed here. Originally, TechBase was the only wiki, and it quickly became a dumping ground for pretty much everything. At some point, the other two wikis (Community and UserBase) were created so we could separate things out a bit, and people wanting tutorials for how to create Plasmoids, for example, wouldn’t be overwhelmed with meeting notes from the Plasma team.

More in Tux Machines

OSS in the Back End

  • Open Source NFV Part Four: Open Source MANO
    Defined in ETSI ISG NFV architecture, MANO (Management and Network Orchestration) is a layer — a combination of multiple functional entities — that manages and orchestrates the cloud infrastructure, resources and services. It is comprised of, mainly, three different entities — NFV Orchestrator, VNF Manager and Virtual Infrastructure Manager (VIM). The figure below highlights the MANO part of the ETSI NFV architecture.
  • After the hype: Where containers make sense for IT organizations
    Container software and its related technologies are on fire, winning the hearts and minds of thousands of developers and catching the attention of hundreds of enterprises, as evidenced by the huge number of attendees at this week’s DockerCon 2016 event. The big tech companies are going all in. Google, IBM, Microsoft and many others were out in full force at DockerCon, scrambling to demonstrate how they’re investing in and supporting containers. Recent surveys indicate that container adoption is surging, with legions of users reporting they’re ready to take the next step and move from testing to production. Such is the popularity of containers that SiliconANGLE founder and theCUBE host John Furrier was prompted to proclaim that, thanks to containers, “DevOps is now mainstream.” That will change the game for those who invest in containers while causing “a world of hurt” for those who have yet to adapt, Furrier said.
  • Is Apstra SDN? Same idea, different angle
    The company’s product, called Apstra Operating System (AOS), takes policies based on the enterprise’s intent and automatically translates them into settings on network devices from multiple vendors. When the IT department wants to add a new component to the data center, AOS is designed to figure out what needed changes would flow from that addition and carry them out. The distributed OS is vendor-agnostic. It will work with devices from Cisco Systems, Hewlett Packard Enterprise, Juniper Networks, Cumulus Networks, the Open Compute Project and others.
  • MapR Launches New Partner Program for Open Source Data Analytics
    Converged data vendor MapR has launched a new global partner program for resellers and distributors to leverage the company's integrated data storage, processing and analytics platform.
  • A Seamless Monitoring System for Apache Mesos Clusters
  • All Marathons Need a Runner. Introducing Pheidippides
    Activision Publishing, a computer games publisher, uses a Mesos-based platform to manage vast quantities of data collected from players to automate much of the gameplay behavior. To address a critical configuration management problem, James Humphrey and John Dennison built a rather elegant solution that puts all configurations in a single place, and named it Pheidippides.
  • New Tools and Techniques for Managing and Monitoring Mesos
    The platform includes a large number of tools including Logstash, Elasticsearch, InfluxDB, and Kibana.
  • BlueData Can Run Hadoop on AWS, Leave Data on Premises
    We've been watching the Big Data space pick up momentum this year, and Big Data as a Service is one of the most interesting new branches of this trend to follow. In a new development in this space, BlueData, provider of a leading Big-Data-as-a-Service software platform, has announced that the enterprise edition of its BlueData EPIC software will run on Amazon Web Services (AWS) and other public clouds. Essentially, users can now run their cloud and computing applications and services in an Amazon Web Services (AWS) instance while keeping data on-premises, which is required for some companies in the European Union.

today's howtos

Industrial SBC builds on Raspberry Pi Compute Module

On Kickstarter, a “MyPi” industrial SBC using the RPi Compute Module offers a mini-PCIe slot, serial port, wide-range power, and modular expansion. You might wonder why in 2016 someone would introduce a sandwich-style single board computer built around the aging, ARM11 based COM version of the original Raspberry Pi, the Raspberry Pi Compute Module. First off, there are still plenty of industrial applications that don’t need much CPU horsepower, and second, the Compute Module is still the only COM based on Raspberry Pi hardware, although the cheaper, somewhat COM-like Raspberry Pi Zero, which has the same 700MHz processor, comes close. Read more

DAISY: A Linux-compatible text format for the visually impaired

If you're blind or visually impaired like I am, you usually require various levels of hardware or software to do things that people who can see take for granted. One among these is specialized formats for reading print books: Braille (if you know how to read it) or specialized text formats such as DAISY. Read more