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Leftovers: Containers in Research, Opera, KDE Software, Thunderbolt 3, Android and Chrome OS

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Software
  • Containers in Research

    Last week, I attended the Docker Containers for Reproducible Research Workshop hosted by the Software Sustainability Institute. Many talks were addressing how containers can be used in a high performance computing (HPC) environment. Since running the Docker daemon requires root privileges, most administrators are reluctant to allow users running Docker containers in a HPC environment. This issue as been addressed by Singularity, which is an alternative conterization technology that does not require root privileges. The nice thing is that Singularity allows importing existing Docker images, which allows you creating a Singularity container from anything that is on Docker Hub. Although I only used Docker so far, Singularity sounds like a nice technology I would like to explore in the future.

  • Opera 50 Web Browser Features Cryptocurrency Mining Protection
  • Latte bug fix release v0.7.3 and some news...

    Latte Dock v0.7.3 has been released containing many important fixes and improvements! Soon at your distro repos or...

  • Discussing the future of Cantor

    It is common to use the new year date to start new projects or give new directions for old ones. The last one is the case for Cantor.

    Since when I got the maintainer status for Cantor, I was working to improve the community around the software. Because the great plugins systems of Qt, it is easy to write new backends for Cantor, and in fact in last years Cantor reached the number of 11 backends.

  • Fedora 28 Aiming For Secure Thunderbolt 3 Support

    If Fedora developers are successful, Fedora 28 will feature secure and properly supported Thunderbolt 3 device handling out-of-the-box.

    Long story short, Fedora 28 will hopefully be featuring Red Hat's Bolt project for dealing with modern Thunderbolt devices. With Thunderbolt allowing for direct access to the PCI Express bus, it opens the system up to DMA attacks and other vulnerabilities. But under Thunderbolt 3 is support for security levels by which devices can be restricted to only DisplayPort acess, user authorization of devices, and secure access. The Linux kernel changes for dealing with Thunderbolt 3 is in place but the user-space portion is not.

  • 8 Best Android Launchers To Enhance Looks And Performance Of Your Device in 2018

    Android’s dominance over other mobile operating systems is mainly due to the endless customization opportunities it provides to its user base. Launchers are one of the most customizable parts of Android. Android smartphones are inoperable without a launcher, which comprises of your home screen and the catalog of all the apps available on your device. So every device comes with a default launcher pre-installed.

  • This is the new Acer Chromebook 11

    Many people diss Chromebooks because they simply don't understand them. No, Chrome OS -- the operating system that powers these laptops -- is not just a glorified web browser. Actually, the OS is a full Linux distribution that is both extremely secure and easy to use. True, they can be deficient for some tasks, such as video editing and hardcore gaming, but let's be honest -- not everyone has those needs. If everything you do is in a browser -- email, web surfing, social media, YouTube, Netflix, etc. -- there is no reason to run Windows and open yourself up to malware and other bad things. Hell, Chromebooks even have Microsoft Office support these days!

More in Tux Machines

Kernel and Graphics: PDS, VKMS and Nouveau

  • PDS 0.98s release
    PDS 0.98s is released with the following changes 1. Fix compilation issue on raspberry pi. 2. Minor rework and optimization on balance code path. 3. Fix wrong nr_max_tries in migrate_pending_tasks. This is mainly a bug fix and minor optimization release for 4.17. The rework of balance code doesn't go well, it actually make more overhead than current implement. Another rework which based on current implement is still on going, hopefully be included in next release.
  • PDS-MQ CPU Scheduler Revised For The Linux 4.17 Kernel With Minor Optimizations
    Alfred Chen announced this week the release of PDS-mq 0.98s, his latest patch-set of this CPU scheduler against the Linux 4.17 upstream code-base and includes minor optimization work and bug fixes. The PDS scheduler stands for the "Priority and Deadline based Skiplist multiple queue scheduler" that is derived from Con Kolivas' former BFS scheduler with Variable Run Queue (VRQ) support. PDS design principles are to be a simple CPU process scheduler yet efficient and scalable. PDS-mq differs from Con Kolivas' current MuQSS scheduler.
  • Add infrastructure for Vblank and page flip events in vkms simulated by hrtimer
    Since the beginning of May 2018, I have been diving into the DRM subsystem. In the beginning, nothing made sense to me, and I had to fight hard to understand how things work. Fortunately, I was not alone, and I had great support from Gustavo Padovan, Daniel Vetter, Haneen Mohammed, and the entire community. Recently, I finally delivered a new feature for VKMS: the infrastructure for Vblank and page flip events. At this moment, VKMS have regular Vblank events simulated through hrtimers (see drm-misc-next), which is a feature required by VKMS to mimic real hardware [6]. The development approach was entirely driven by the tests provided by IGT, more specifically the kms_flip. I modified IGT to read a module name via command line and force the use of it, instead of using only the modules defined in the code (patch submitted to IGT, see [1]). With this modification in the IGT, my development process to add a Vblank infrastructure to VKMS had three main steps as Figure 1 describes.
  • The State Of The VKMS Driver, Preparations For vBlank & Page Flip Events
    One of the exciting additions to look forward to with the upcoming Linux 4.19 kernel cycle is the virtual "VKMS" kernel mode-setting driver. The driver is still a work-in-progress, but multiple developers are working on it.
  • NIR Continues To Be Prepped For OpenCL Support
    Longtime Nouveau contributor Karol Herbst who joined Red Hat several months ago has been working on Nouveau NIR support as stepping towards SPIR-V/compute support and this summer the work very much remains an active target.
  • Nouveau Gallium3D Moves Closer Towards OpenGL 4.5 Compliance
    While the RadeonSI and Intel i965 Mesa drivers have been at OpenGL 4.5 compliance for a while now, the Nouveau "NVC0" Gallium3D driver has been bound to OpenGL 4.3 officially. This Nouveau Gallium3D driver for NVIDIA "Fermi" graphics hardware and newer has effectively supported all of the OpenGL 4.4/4.5 extensions, but not officially. Originally the NVC0 problem for OpenGL 4.4 and newer was the requirement of passing the OpenGL Conformance Test Suite (CTS), which at first wasn't open-source. But now The Khronos Group has made it available to everyone as open-source. Additionally, the proper legal wrangling is in place so the Nouveau driver could become a conforming Khronos adopter under the X.Org Foundation without any associated costs/fees with Nouveau being purely open-source and primarily considered a community driver.

DistroWatch The Best Website For Distro Hoppers

The DistroWatch features release announcements of new versions of hundreds of Linux and other distributions. It does host reviews of distros, podcasts, and newsletters. DistroWatch first published by Ladislav Bodnar, the founder, and maintainer, on May 31, 2001. DistroWatch initially focused on Linux distributions. But later based on user requests, it went on adding different flavors of operating systems like BSD family, Android x86, Oracle Solaris, MINIX, and Haiku etc. The DistroWatch presents detailed information at one place in a very convenient manner. At the time of writing this article, the DistroWatch hosted information of more than 300 active distributions (referring the list of distros populated under drop-down feature on the first page of the DistroWatch) and more than hundred in queue. It is said that the DistroWatch lives out of advertising and donation. LinuxCD.org is the first to advertise on the DistroWatch site. Read more

Ubuntu 18.04 LTS and 16.04 LTS Amazon Linux AMIs Now Support Amazon's SSM Agent

As of July 2018, Amazon's Linux AMIs (Amazon Machine Images) that are based on either the Ubuntu 16.04 LTS (Xenial Xerus) or Ubuntu 18.04 LTS (Bionic Beaver) operating systems now come pre-installed with the AWS Systems Manager Agent (SSM Agent), an Amazon software designed to run on hybrid or Amazon EC2 instances in public and private clouds on AWS (Amazon Web Services). "With this new feature release, AWS Systems Manager Agent is installed by default on all instances launched or built from Ubuntu 16.04 LTS (2018.07 and later) and 18.04 LTS (all versions) AMIs," said Amazon. "By having the agent pre-installed, you can quickly start using AWS Systems Manager features such as Run Command, State Manager, Inventory and Patch Manager." Read more

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