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Kernel Space: Linux, Graphics

Filed under
Graphics/Benchmarks
Linux
  • Linux kernel bug delivers corrupt TCP/IP data to Mesos, Kubernetes, Docker containers

    The Linux Kernel has a bug that causes containers that use veth devices for network routing (such as Docker on IPv6, Kubernetes, Google Container Engine, and Mesos) to not check TCP checksums. This results in applications incorrectly receiving corrupt data in a number of situations, such as with bad networking hardware. The bug dates back at least three years and is present in kernels as far back as we’ve tested. Our patch has been reviewed and accepted into the kernel, and is currently being backported to -stable releases back to 3.14 in different distributions (such as Suse, and Canonical). If you use containers in your setup, I recommend you apply this patch or deploy a kernel with this patch when it becomes available. Note: Docker’s default NAT networking is not affected and, in practice, Google Container Engine is likely protected from hardware errors by its virtualized network.

  • Performance problems

    Just over a year ago I implemented an optimization to the SPI core code in Linux that avoids some needless context switches to a worker thread in the main data path that most clients use. This was really nice, it was simple to do but saved a bunch of work for most drivers using SPI and made things noticeably faster. The code got merged in v4.0 and that was that, I kept on kicking a few more ideas for optimizations in this area around but that was that until the past month.

  • Compute Shader Code Begins Landing For Gallium3D

    Samuel Pitoiset began pushing his Gallium3D Mesa state tracker changes this morning for supporting compute shaders via the GL_ARB_compute_shader extension.

    Before getting too excited, the hardware drivers haven't yet implemented the support. It was back in December that core Mesa received its treatment for compute shader support and came with Intel's i965 driver implementing CS.

  • Libav Finally Lands VDPAU Support For Accelerated HEVC Decoding

    While FFmpeg has offered hardware-accelerated HEVC decoding using NVIDIA's VDPAU API since last summer, this support for the FFmpeg-forked libav landed just today.

    In June was when FFmpeg added support to its libavcodec for handling HEVC/H.265 video decoding via NVIDIA's Video Decode and Presentation API for Unix interface. Around that same time, developer Philip Langdale who had done the FFmpeg patch, also submitted the patch for Libav for decoding HEVC content through VDPAU where supported.

More in Tux Machines

KDE and GNOME

  • A Simple, Straightforward Clipboard Manager for GNOME
    Clipboard Manager extension for Gnome Shell is a no-frills clipboard manager for GNOME. It adds an indicator menu to the top panel and caches your clipboard history. There’s nothing extra; no regex searching, or cross-device, multi-sync or pan-dimensional magic. Just a simple, easy to access clipboard history. I’ve never been a particularly big clipboard fan. I typically only need to access whatever I copy as I copy it.
  • First GNOME 3.26 Development Release Out, Some Apps Ported to Meson Build System
    GNOME Project's Michael Catanzaro just informed us via an email announcement that the first unstable release of the upcoming GNOME 3.26 desktop environment is out now for public testing and early adopters. Yes, we're talking about GNOME 3.25.1, the first development in the release cycle of GNOME 3.26, which is currently scheduled to launch later this year, on September 13. Being the first unstable release and all that, GNOME 3.25.1 doesn't ship with many changes, and you can check out the CORE NEWS and APPS NEWS for details.
  • Features To Look Forward To In Next Month's KDE Plasma 5.10
    We are just one month away from seeing the next KDE Plasma 5 desktop release.
  • User Question: With Some Free Software Phone Projects Ending, What Does Plasma Mobile's Future Look Like?
    Rosy. While it is true that Plasma Mobile used to be built on the Ubuntu Phone codebase, that was superseded some time ago. The recent events at Ubuntu and other mobile communities have not modified the pace of the development (which is pretty fast) or the end goal, which is to build frameworks that will allow convergence for all kinds of front-ends and apps on all kinds of devices.

Google in Devices

  • Glow LEDs with Google Home
    For the part one, the custom commands were possible thanks to Google Actions Apis. I used API.AI for my purpose since they had good documentation. I wont go into detail explaining the form fields in Api.ai, they have done a good job with documentation and explaining part, I will just share my configurations screenshot for your quick reference and understanding. In Api.ai the conversations are broken into intents. I used one intent (Default Welcome Intent) and a followup intent (Default Welcome Intent – custom) for my application.
  • Google Assistant SDK preview brings voice agent to the Raspberry Pi
    Google has released a Python-based Google Assistant SDK that’s designed for prototyping voice agent technology on the Raspberry Pi 3. Google’s developer preview aims to bring Google Assistant voice agent applications to Linux developers. The Google Assistant SDK is initially designed for prototyping voice agent technology on the Raspberry Pi 3 using Python and Raspbian Linux, but it works with most Linux distributions. The SDK lets developers add voice control, natural language understanding, and Google AI services to a variety of devices.
  • Huawei, Google create a high-powered single board computer for Android
    The Raspberry Pi is very popular with DIY enthusiasts because of the seemingly endless possibilities of how you can design devices with it. Huawei and Google have created their own single board computer (SBC), but this will probably benefit Android developers more than DIY enthusiasts. The HiKey 960 is a very robust SBC aimed at creating an Android PC or a testing tool for Android apps.
  • Huawei’s $239 HiKey 960 wants to be a high-end alternative to Raspberry Pi
    12.5 million sales in five years – Linaro and Huawei have unveiled a high-end (read: expensive) rival.

Mobile, Tizen, and Android

Leftovers: OSS

  • Is The Open Source Software Movement A Technological Religion?
  • Experts weigh in on open source platforms, market
    In this Advisory Board, our experts discuss the pros and cons of open source virtualization and which platforms are giving proprietary vendors a run for their money.
  • Light a fire under Cassandra with Apache Ignite
    Apache Cassandra is a popular database for several reasons. The open source, distributed, NoSQL database has no single point of failure, so it’s well suited for high-availability applications. It supports multi-datacenter replication, allowing organizations to achieve greater resiliency by, for example, storing data across multiple Amazon Web Services availability zones. It also offers massive and linear scalability, so any number of nodes can easily be added to any Cassandra cluster in any datacenter. For these reasons, companies such as Netflix, eBay, Expedia, and several others have been using Cassandra for key parts of their businesses for many years.
  • Proprietary Election Systems: Summarily Disqualified
    Hello Open Source Software Community & U.S. Voters, I and the California Association of Voting Officials, represent a group of renowned computer scientists that have pioneered open source election systems, including, "one4all," New Hampshire’s Open Source Accessible Voting System (see attached). Today government organizations like NASA, the Department of Defense, and the U.S. Air Force rely on open source software for mission critical operations. I and CAVO believe voting and elections are indeed mission-critical to protect democracy and fulfill the promise of the United States of America as a representative republic. Since 2004, the open source community has advocated for transparent and secure—publicly owned—election systems to replace the insecure, proprietary systems most often deployed within communities. Open source options for elections systems can reduce the costs to taxpayers by as much as 50% compared to traditional proprietary options, which also eliminates vendor lock-in, or the inability of an elections office to migrate away from a solution as costs rise or quality decreases.
  • Microsoft SQL Server on Linux – YES, Linux! [Ed: Marketing and PR from IDG's "Microsoft Subnet"; This headline is a lie from Microsoft; something running on DrawBridge (proprietary Wine-like Windows layer) is not GNU/Linux]