Language Selection

English French German Italian Portuguese Spanish

today's leftovers

Filed under
Misc
  • On the Importance of On-Screen Keyboards

    The role of keyboards cannot be overstated. They originated long before computers, and survive in the smartphone era. Millions of people text their friend by tapping away on their shiny pocket computers using the venerable QWERTY layout dating back to 1873.

    It is hard to imagine a phone without a way to enter text. Some of us are dreaming about Minority Report-style gesturing, but the Librem 5 continues the keyboard tradition.

    [...]

    The task took me on an interesting and educating journey. The Wayland train took me via input methods to Asia, through protocols, to FLOSS communities. I will try to describe my story for you.

  • How Does Project Aiur, An Open Source AI-Engine Substantiate Scientific Knowledge

    As research in science progresses by leaps and bounds, there are a lot of readily available information in the online space, making knowledge sharing in areas like science easier.

    However, there is so much research information available that it is sometimes confusing as to what is right and what is wrong. Given the vast amount of resources, it is essential to carry out in-depth analysis of the resources. This has been made possible with AI and ML innovations.

  • OpenBSD at BSDCan 2018
  • Summer of Code: Evaluation and Key Lengths

    I spent some time testing my OpenPGP library PGPainless and during testing I noticed, that messages encrypted and signed using keys from the family of elliptic curve cryptography were substantially smaller than messages encrypted with common RSA keys. I knew already, that one benefit of elliptic curve cryptography is, that the keys can be much smaller while providing the same security as RSA keys. But what was new to me is, that this also applies to the length of the resulting message. I did some testing and came to interesting results:

  • Major speedup for big DWG's

    Thanks to David Bender and James Michael DuPont for convincing me that we need a hash table for really big DWGs. I got a DWG example with 42MB, which needed 2m to process and then 3m to free the dwg struct. I also had to fix a couple of internal problems.

    We couldn't use David Bender's hashmap which he took from Android (Apache 2 licensed), and I didn't like it too much neither. So today I sat down and wrote a good int hashmap from scratch, with several performance adjustments, because we never get a key 0 and we won't need to delete keys.
    So it's extremely small and simple, using cache-friendly open addressing, and I got it right at the second attempt.

    Performance with this hash table now got down to 7 seconds.
    Then I also removed the unneeded dwg_free calls from some cmdline apps, because the kernel does it much better then libc malloc/free. 3 minutes for free() is longer than the slowest garbage collector I've ever seen.
    So now processing this 42MB dwg needs 7s.

  • California Can Lead the Way in Open Access
  • Better API testing with the OpenAPI Specification

    If you search the internet for "unexpected API behavior," you'll soon discover that no one likes when an API doesn't work as anticipated. When you consider the increasing number of APIs, continuous development, and delivery of the services built on top of them, it's no surprise that APIs can diverge from their expected behavior. This is why API test coverage is critical for success. For years, we have created unit and functional tests for our APIs, but where do we go from there?

More in Tux Machines

How to Integrate Dropbox in Ubuntu Using Nautilus File Manager

This beginners guide will help you to install and integrate Dropbox in Ubuntu’s Nautilus file manager. Dropbox is a popular file hosting service provides users cloud storage and access to your files from any device. Dropbox provides free account upto a certain storage limit and also provides subscription based accounts. Dropbox provides native desktop apps for Linux systems. Read more

Security: Cincoze Back Doors (ME), Windows 10 Mobile Killed (No More Patches), New FUD About 'Linux Servers'

  • Industrial Apollo Lake mini-PC features dual GbE with PoE
    Cincoze announced a compact, rugged “DA-1100” embedded PC with an Apollo Lake SoC, triple display support, dual GbE ports with PoE, 4x USB 3.0 ports, SATA, and expansion via mini-PCIe and homegrown add-on modules. Cincoze has updated its “entry level” Intel Bay Trail based DA-1000 industrial mini-PC, which is sold under the same name in the U.S. by Logic Supply. The new Apollo Lake based DA-1100, which is now referred to as an edge computer is not only a bit faster, but offers a few key enhancements, including PoE and triple displays. No pricing was listed by Taiwan-based Cincoze, but Logic Supply sold the earlier DA-1000 at $569 and up including a 32GB SATA SSD. It’s possible the new model will end up at Logic Supply as well.
  • Microsoft is Ending Windows 10 Mobile Support on December 10th, 2019
    After the end of support, Windows Phones will continue to work, but some features will eventually shut down. Automatic and manual backups for settings and apps will cease after March 10, 2020. And services like photo upload and device restore will stop December 2020.
  • Linux-Targeting Cryptojacking Malware Disables Cloud-Based Security Measures: Report [Ed: They make it sound like GNU/Linux is the problem; but it relies on already-compromised GNU/Linux systems]
    A new cryptojacking malware has the ability to disable cloud-based security measures to avoid detection on Linux servers, research by information security company Palo Alto Networks Jan. 17 reveals. The malware in question mines Monero (XMR) and is reportedly a modified version of one used by the so-called “Rocke” group, originally discovered by cybersecurity firm Talos in August last year. According to the research, one of the first things that the malware does is check for other cryptocurrency mining processes and add firewall rules to block any other cryptojacking malware.

GNU/Linux Gains on Laptops

  • Writing With a Linux Laptop
    Open source solutions like Linux provide for greater productivity; check out our screencast highlighting how a Linux Laptop functions.
  • Google Updates: Security in motion, Linux in launcher and Ethereum in the sin bin
    Back to Google proper, and Chrome OS. After wowing us with a promise of Linux compatibility, it has now emerged that the integration could run deeper than we thought. The latest news out of Mountain View is that Linux apps will be treated like any others - that means you'll be able to launch them from the app launcher, which is cooler than we even expected.
  • Pixelbook and “Nami” Chromebooks the first to get Linux GPU acceleration in Project Crostini
    I don’t have a Pixelbook for testing right now, otherwise, I’d pop it into Developer Mode and jump on the Canary channel. However, I do still have a loaner Acer Chromebook Spin 13, so I’ll give it a go later today and see if the newly added code from early this morning is there in the Canary Channel; if it is, I’ll circle back with observations on how well it does or doesn’t work for the Android emulator in Android Studio and possibly a game or two using Steam.
  • Pixelbook and 'Nami' Chromebooks the First To Get Linux GPU Acceleration in Project Crostini
    I've been following the bug report that tracks progress on adding GPU acceleration for the Linux container in Chrome OS and there's good news today. The first two Chrome OS boards should now, or very soon, be able to try GPU hardware acceleration with the new startup parameter found last month. The bug report says the -enable-gpu argument was added to the Eve and Nami boards.
  • Chrome OS to test early GPU support for Linux apps soon
    If you’ve kept up with Chrome OS in the past six months or so, you’ll know that one of the more interesting new features to launch is Linux apps support. While this has potential to introduce all sorts of new applications to Chrome OS, there are some features missing that hold it back, in this early stage. One of the most anticipated features, graphics acceleration (or GPU support), necessary for running Linux games and some other apps, will be available to test soon on Chrome OS.

Second Godot 3.1 Beta

  • Godot 3.1 Beta 2
    We entered the release freeze last week with Godot 3.1 beta 1, and many high priority bug reports have been fixed since then. We're now publishing a new beta 2 snapshot for testers to work with. This new release fixes various crash scenarios, as well as a performance regression in the GLES backend. We're still aiming for a release by the end of the month, so we're under a tight schedule. From now on dev focus is on release-critical issues that would seriously hamper Godot 3.1's usability and features. Contrarily to our 3.0.x maintenance releases, which include only thoroughly reviewed and backwards-compatible bug fixes, the 3.1 version includes all the new features (and subsequent bugs!) merged in the master branch since January 2018, and especially all those showcased on our past devblogs. It's been almost a year since the 3.0 release and close to 6,000 commits, so expect a lot of nice things in the final 3.1 version!
  • Godot 3.1 Beta 2 Released With OpenGL ES Performance Fix
    The developers behind Godot, one of the leading open-source game engines, have announced their second beta release for the upcoming Godot 3.1 feature release. Godot 3.1 initially entered beta earlier this month as stepping towards the first major release of this cross-platform game engine since Godot 3.0 last year. Godot 3.1 is preparing OpenGL ES 2.0 rendering support, continued work around virtual reality (VR) support, 3D soft body physics capabilities, constructive solid geometry, BPTC texture compression, a new visual shader editor, WebSockets support, and various game developer/editor improvements.