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today's leftovers

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  • GSoC 2018: Coding period (week 4-8)

    Since the last blogpost, the import of JSON files has been significantly improved, now this code is merged into the master branch. Previously, you could import data only from the field of the root object, whose name was specified manually. But then there was implemented the feature to overview the structure of JSON file that lets you import data by selecting an item in the file structure. To implement this, a QTreeView has been added to the ImportFileWidget. To fill it I used QJsonModel, which I and my mentor Alexander Semke improved a little for our needs:we made a display of icons for objects and arrays in the structure, added a display of the root element of the document and more.

  • GUADEC 2018

    Today, my first GUADEC experience has come to an end, and it was great! Kudos to the organizers for a very well-planned and executed event. Being a part of the volunteer team was a fantastic experience and thanks for the nice t-shirt!

    It was wonderful to meet the GNOME community in person, quite a surreal experience to say the least. The talks were a great opportunity to learn about everything going on at GNOME. I had amazing discussions with my mentors on various topics ranging from “Integrating AI in gnome applications” to “The big dilemma: Is a PhD really worth it?” and finally, some stuff about the GSoC project too.

  • GNOME's GLib Finally Has A Generic Reference Counting API

    Fulfilling a 6+ year desire, GNOME's GLib library now has a generic memory reference counting API.

  • My Free Software [Debian] Activities in June 2018

    Welcome to gambaru.de. Here is my monthly report that covers what I have been doing for Debian. If you’re interested in Java, Games and LTS topics, this might be interesting for you.

  • StarTech releases UVCHDCAP HDMI to USB-C Video Capture Device for Windows, Mac, and Linux

    While all desktops (and most laptops) have video outputs, having a video input is much more rare. The reason why is simple -- most people don't need such a thing. Quite frankly, outside of some business use, home users never really had much of a need. With the invent of video gameplay streaming on platforms like Twitch, however, this changed. Now, more and more home users want video capture devices to connect a game console to their PC.

  • Signage-oriented Mini-STX SBC taps Ryzen V1000

    Sapphire has launched a Linux-friendly “FS-FP5V” SBC starting at $325 that features an AMD Ryzen V1000 SoC, as well as SATA III, 2x M.2, 4x DP++, 2x GbE, and 4x USB ports including a USB 3.1 Type-C.

    Sapphire, which makes AMD-based graphics cards and motherboards, has launched a 147.3 x 139.7mm Mini-STX (5×5-inch) form factor SBC that runs Ubuntu 16.04 or Windows on AMD’s new Ryzen Embedded V1000 SoC. AMD’s Ryzen V1000 is highly competitive on CPU performance with the latest Intel Core chips, and the Radeon Vega graphics are superior, enabling four 4K displays to run at once.

  • Elsevier Will Monitor Open Science In EU Using Measurement System That Favors Its Own Titles

        

    In other words, one of the core metrics that Elsevier will be applying as part of the Open Science Monitor appears to show bias in favor of Elsevier's own titles. One result of that bias could be that when the Open Science Monitor publishes its results based on Elsevier's metrics, the European Commission and other institutions will start using Elsevier's academic journals in preference to its competitors. The use of CiteScore creates yet another conflict of interest for Elsevier.

  • 15 open source applications for MacOS
  • 6 Open Source Software Security Concerns Dispelled [Ed: White Source typically badmouths FOSS to sell its wares and services. Anat Richter, for a change, tries a more positive approach.]

    Used by developers around the world, open source components makes up 60%-80% of the codebase in modern applications. Open source components are downloaded thousands of times per day to create applications for organizations of varying sizes and across all industries.

    But despite the continuously growing adoption there are still myths to dispel and concerns to mitigate around the usage of open source components in commercial software. The following is a list of the top concerns associated with open source usage and how to overcome each one of these stumbling blocks:

More in Tux Machines

Wine and Games for GNU/Linux

  • Wine 3.13 is out as well as DXVK 0.63 for D3D11 with Vulkan
    First of all the latest Wine development release is out with Wine 3.13 and on top of that DXVK for Vulkan-based D3D11 in Wine also release version 0.63.
  • Feral's GameMode 1.2 Released For Optimizing Linux Gaming
    For what just started out as a tool to ensure you are using the "performance" frequency scaling governor when running Linux games, Feral's open-source GameMode system tool has slowly been picking up some extra functionality. Out this weekend is Feral GameMode 1.2 as the newest release. GameMode 1.2 adds configuration options about the default and desired governors, now supports soft real-time scheduling on kernels with SCHED_ISO support and will then use renice to boost games to a higher priority, the GameMode service is now D-Bus activated than needing to be explicitly enabled by systemd, and the GameMode libraries are now properly versioned.
  • Stardew Valley multiplayer just got a PC release date
    Since the moment Stardew Valley launched back in 2016, multiplayer has been one of the most anticipated additions to the games. After a period of beta testing, it’s nearly ready to roll out on PC, Mac, and Linux. While it probably isn’t going to look a lot different from the beta that’s currently available, this is exciting news for more reasons than one.
  • Multiplayer is coming to ‘Stardew Valley’ on PC, Mac and Linux
    According to a tweet from Eric Barone (@ConcernedApe), the sole developer behind Stardew Valley, the feature is coming to the lighthearted farming game on August 1st. Along with the release date, the game’s developer also released a new trailer for the feature (see it above).
  • 'Stardew Valley' multiplayer arrives on PC, Mac and Linux August 1st

Android Leftovers

Jonathan Dieter: Small file performance on distributed filesystems - Round 2

Last year, I ran some benchmarks on the GlusterFS, CephFS and LizardFS distributed filesystems, with some interesting results. I had a request to redo the test after a LizardFS RC was released with a FUSE3 client, since it is supposed to give better small file performance. I did have a request last time to include RozoFS, but, after a brief glance at the documentation, it looks like it requires a minimum of four servers, and I only had three available. I also looked at OrangeFS (originally PVFS2), but it doesn’t seem to provide replication, and, in preliminary testing, it was over ten times slower than the alternatives. NFS was tested and its results are included as a baseline. I once again used compilebench, which was designed to emulate real-life disk usage by creating a kernel tree, reading all the files in the tree, simulating a compile of the tree, running make clean, and finally deleting the tree. The test was much the same as last time, but with one important difference. Last time, the clients were running on the same machines that were running the servers. LizardFS benefited hugely from this as it has a “prefer local chunkserver” feature that will skip the network completely if there’s a copy on the local server. This time around, the clients were run on completely separate machines from the servers, which removed that advantage for LizardFS, but which I believe is a better reflection on how distributed filesystems are generally used. I would like to quickly note that there was very little speed difference between LizardFS’s FUSE2 and FUSE3 clients. The numbers included are from the FUSE3 client, but they only differed by a few percentage points from the FUSE2 client. Read more

GNOME 3.30 Desktop Environment to Enter Beta on August 1, GNOME 3.29.4 Is Out

With a two-day delay, the GNOME Project through Javier Jardón announced today the release of the fourth and last development snapshot of the GNOME 3.30 desktop environment before it enters beta testing next month, GNOME 3.29.4, which continues to add improvements to various of GNOME's core components and applications. However, due to the summer vacation and the GUADEC conference, GNOME 3.29.4 isn't a major snapshot as many would have expected. It only adds some minor changes and bug fixes to a handful of components, including GNOME Shell, Mutter, Evolution, GNOME Photos, GNOME Builder, GNOME Online Accounts, Polari, Bijiben, Evince, Epiphany, Baobab, GNOME Control Center, and File Roller. Read more Also: GNOME 3.29.4 Released As Another Step Towards GNOME 3.30