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Leftovers: KDE

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  • 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.

  • 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

KDE Leftovers

  • Integrate Your Android Device With Ubuntu Using KDE Connect Indicator Fork
    KDE Connect is a tool which allows your Android device to integrate with your Linux desktop. With KDE Connect Indicator, you can use KDE Connect on desktop that support AppIndicators, like Unity, Xfce (Xubuntu), and so on.
  • FirstAid – PDF Help Viewer
    in the recent months, I didn’t find much time to spend on Kate/KTextEditor development. But at least I was now able to spend a bit more time on OpenSource & Qt things even during work time in our company. Normally I am stuck there with low level binary or source analysis work. [...] Therefore, as our GUIs are developed with Qt anyways, we did take a look at libpoppler (and its Qt 5 bindings), which is the base of Okular, too.
  • KBibTeX 0.6.1-rc2 released
    After quite some delay, I finally assembled a second release candidate for KBibTeX 0.6.1. Version 0.6.1 will be the last release in the 0.6.x series.
  • Meet KDE at FOSDEM Next Month
    Next month is FOSDEM, the largest gathering of free software developers anywhere in Europe. FOSDEM 2017 is being held at the ULB Campus Solbosch on Saturday 4th and Sunday 5th of February. Thousands of coders, designers, maintainers and managers from projects as popular as Linux and as obscure as Tcl/Tk will descend on the European capital Brussels to talk, present, show off and drink beer.

Leftovers: OSS

  • D-Wave Unveils Open-Source Software for Quantum Computing
    Canada-based D-Wave Systems has released an open-source software tool designed to help developers program quantum computers, Wired reported Wednesday.
  • D-Wave builds open quantum computing software development ecosystem
    D-Wave Systems has released an open source quantum computing chunk of software. Quantum computing, as we know, moves us on from the world of mere 1’s and 0’s in binary to the new level of ‘superposition’ qubits that can represent many more values and therefore more computing power — read this accessible piece for a simple explanation of quantum computing.
  • FOSS Compositing With Natron
    Anyone who likes to work with graphics will at one time or another find compositing software useful. Luckily, FOSS has several of the best in Blender and Natron.
  • Hadoop Creator Doug Cutting: 5 Ways to Be Successful with Open Source in 2017
    Because of my long-standing association with the Apache Software Foundation, I’m often asked the question, “What’s next for open source technology?” My typical response is variations of “I don’t know” to “the possibilities are endless.” Over the past year, we’ve seen open source technology make strong inroads into the mainstream of enterprise technology. Who would have thought that my work on Hadoop ten years ago would impact so many industries – from manufacturing to telecom to finance. They have all taken hold of the powers of the open source ecosystem not only to improve the customer experience, become more innovative and grow the bottom line, but also to support work toward the greater good of society through genomic research, precision medicine and programs to stop human trafficking, as just a few examples. Below I’ve listed five tips for folks who are curious about how to begin working with open source and what to expect from the ever-changing ecosystem.
  • Radio Free HPC Looks at New Open Source Software for Quantum Computing
    In this podcast, the Radio Free HPC team looks at D-Wave’s new open source software for quantum computing. The software is available on github along with a whitepaper written by Cray Research alums Mike Booth and Steve Reinhardt.
  • Why events matter and how to do them right
    Marina Paych was a newcomer to open source software when she left a non-governmental organization for a new start in the IT sector—on her birthday, no less. But the real surprise turned out to be open source. Fast forward two years and this head of organizational development runs an entire department, complete with a promotional staff that strategically markets her employer's open source web development services on a worldwide scale.
  • Exploring OpenStack's Trove DBaaS Cloud Servic
    You can install databases such as MySQL, PostgreSQL, or even MongoDB very quickly thanks to package management, but the installation is not even half the battle. A functioning database also needs user accounts and several configuration steps for better performance and security. This need for additional configuration poses challenges in cloud environments. You can always manually install a virtual machine in traditional settings, but cloud users want to generate an entire virtual environment from a template. Manual intervention is difficult or sometimes even impossible.
  • Mobile Edge Computing Creates ‘Tiny Data Centers’ at the Edge
    “Usually access networks include all kinds of encryption and tunneling protocols,” says Fite. “It’s not a standard, native-IP environment.” Saguna’s platform creates a bridge between the access network to a small OpenStack cloud, which works in a standard IP environment. It provides APIs about such things as location, registration for services, traffic direction, radio network services, and available bandwidth.

Leftovers: Ubuntu and Debian

  • Debian Creeps Closer To The Next Release
    I’ve been alarmed by the slow progress of Debian towards the next release. They’ve had several weird gyrations in numbers of “release-critical” bugs and still many packages fail to build from source. Last time this stage, they had only a few hundred bugs to go. Now they are over 600. I guess some of that comes from increasing the number of included packages. There are bound to be more bad interactions, like changing the C compiler. I hate that language which seems to be a moving target… Systemd seems to be smoother but it still gives me problems.
  • Mir: 2016 end of year review
    2016 was a good year for Mir – it is being used in more places, it has more and better upstream support and it is easier to use by downstream projects. 2017 will be even better and will see version 1.0 released.
  • Ubuntu Still Planning For Mir 1.0 In 2017
    Alan Griffiths of Canonical today posted a year-in-review for Mir during 2016 and a look ahead to this year.
  • Linux Mint 18.1 “Serena” KDE – BETA Release

GNU Gimp Development

  • Community-supported development of GEGL now live
    Almost every new major feature people have been asking us for, be it high bit depth support, or full CMYK support, or layer effects, would be impossible without having a robust, capable image processing core. Øyvind Kolås picked up GEGL in mid-2000s and has been working on it in his spare time ever since. He is the author of 42% of commits in GEGL and 50% of commits in babl (pixel data conversion library).
  • 2016 in review
    When we released GIMP 2.9.2 in late 2015 and stepped over into 2016, we already knew that we’d be doing mostly polishing. This turned out to be true to a larger extent, and most of the work we did was under-the-hood changes. But quite a few new features slipped in. So, what are the big user-visible changes for GIMP in 2016?