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ARM's Work in Linux (Kernel)

Filed under
Linux
Hardware
  • Energy Model Management Framework Queued For Linux 4.21

    A new framework queued for introduction with the Linux 4.21 kernel is the ARM-developed Energy Model Management Framework.

    With different hardware and drivers exposing the processor/system energy consumption in different manners, the Energy Model Management Framework tries to provide a standardized way of accessing the power values for each performance domain in a system. This can help kernel drivers/schedulers and other code that could make smarter decisions based upon current energy use be able to do so via this standardized framework for acquiring the power information on capable systems.

  • ARM's AArch64 Adding Pointer Authentication Support To The Linux 4.21 Kernel

    The 64-bit ARM architecture code (a.k.a ARM64 / AArch64) with the Linux 4.21 kernel is seeing pointer authentication added as a new security feature.

    Pointer authentication can be supported by ARMv8.3 hardware and newer to allow for signing and authenticating of pointers against secret keys. The purpose of this pointer authentication is to mitigate ROP attacks and other potential buffer-overrun-style attacks. This ARM64_PTR_AUTH functionality will enable pointer authentication for all user-space processes and the presence of supported hardware is determined at run-time. ARM developers have been working on the plumbing for this Linux kernel support for it the past year.

Discord announce a 90/10 revenue split, Discord Store will support Linux

Filed under
GNU
Linux
Gaming
  • Discord announce a 90/10 revenue split, Discord Store will support Linux

    You will be forgiven for not paying much attention to the Discord Store, since it doesn't currently support Linux. It seems that is going to change and they've announce a pretty small cut compared to the competition.

    Firstly, today the Discord team announced in a new blog post that starting in 2019 they will only take a 10% cut from developers. Considering Valve still take 30% unless you earn a lot of money and even the Epic Store will take 12% that might help quite a bit. Not only that, Discord do have a pretty large pull considering they're already the go-to application for a lot of people to chat, even game developers and publishers have moved over in large numbers to have their community on Discord. I wouldn't underestimate them if they keep pushing it.

  • Discord Steps Up to Epic and Steam Game Stores with a 90/10 Developer Split

    Recently Fortnite publisher Epic made a splash in the world of PC gaming by introducing its own game store, with a competitive 88% share of profits going to developers. Now Discord is going one better with an even more generous split.

    Discord is best known as a game-focused chat and VOIP app, but the company has been selling indie games on its own digital storefront for a few months as well. The company announced today on its blog that, beginning next year, the store will give a full 90% of the price of games directly to developers. That beats Steam’s 70/30 split by a huge margin and steals the thunder from Epic, which has been wooing independent and mid-sized developers to its newer store at a steady pace.

Best Free Linux Application Launchers

Filed under
GNU
Linux

We’ve recently expressed our opinion on the Linux desktop scene with Best Linux Desktop Environments: Strong and Stable, and our follow-up article Linux Desktop Environments: Pantheon, Trinity, LXDE. These desktop environments provide good application launchers. But there’s still a place for a different approach, using a standalone application launcher.

Application launchers play an integral part in making the Linux desktop a more productive environment to work and play. They represent small utilities which offers the desktop user a convenient access point for application software and can make a real boost to users’ efficiency.

An application launcher helps to reduce start up times for applications by indexing shortcuts in the menu. Furthermore, this type of software allows users to search for documents and other files quicker by indexing different file formats. This makes them useful for launching almost anything on a computer including multimedia files, games, and the internet. Application launchers often support plug-ins, adding to their versatility.

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Devices/Embedded: Omega2 Pro, Power of Zephyr RTOS, ELC Europe

Filed under
Linux
Hardware
  • Open source Omega2 module gives way to a “Pro” SBC

    Onion’s “Omega2 Pro” update to its WiFi-enabled Omega2 board boosts RAM to 512MB and flash to 8GB and adds real-world USB and micro-USB ports. The Pro model runs OpenWrt on a 580MHz MIPS SoC.

    Boston-based Onion launched its IoT-oriented Omega computer-on-module on Kickstarter in early 2015 and returned the next year with an Omega2 model that switched the 400MHz Atheros AR9331 with a similarly MIPS-based, OpenWrt-driven 580MHz MediaTek MT7688 SoC that supported additional I/O. The open source module was also available in an Omega2 Plus model that added a microSD slot and doubled RAM and flash to 128MB and 32MB, respectively.

  • The Power of Zephyr RTOS

    The Zephyr Project is a scalable real-time operating system (RTOS) supporting multiple hardware architectures; it’s optimized for resource-constrained devices and built specifically with security in mind. To learn more, we talked with Thea Aldrich, Zephyr Project Evangelist and Developer Advocate, about the goals and growth of the project.

    The first question that comes to mind is what’s the need for Zephyr when the Linux kernel already exists? Aldrich explained that Zephyr is great in those cases where Linux is too big. “It’s a really small footprint, real-time operating system built with security and safety in mind for highly constrained environments,” she said.

  • A crash course in embedded Linux software deployment

    At ELC Europe, Mender.io’s Mirza Krak surveyed popular techniques for deploying embedded Linux software, including cross-dev strategies, IDEs, Yocto-OE package management, config utilities, network boot, and updating software.

    While many Embedded Linux Conference talks cover emerging technologies, some of the most useful are those that survey the embedded development tools and techniques that are already available. These summaries are not only useful for newcomers but can be a helpful reality check and a source for best practices for more experienced developers.

AMD Linux News

Filed under
Graphics/Benchmarks
Linux
  • AMD Squeezes In Some Final AMDGPU Changes To DRM-Next For Linux 4.21

    Complementing all of the AMDGPU feature work already staged for the upcoming Linux 4.21 kernel, another (small) batch of material was sent out on Wednesday.

    This latest AMDGPU material for Linux 4.21 includes PowerPlay updates for newer Polaris parts, a cursor plane update fast path, enabling GPU reset by default for Sea Islands (GCN 1.1) graphics cards, and various fixes.

  • AMD Adding STIBP "Always-On Preferred Mode" To Linux

    Initially during the Linux 4.20 kernel merge window with the STIBP addition for cross-hyperthread Spectre V2 mitigation it was turned on by default for all processes. But that turned out to have a sizable performance hit so the behavior was changed to only turn it on for processes under SECCOMP or when requested via the PRCTL interface. However, AMD is landing a patch that for select CPUs will have an always-on mode as evidently that's preferred for some AMD processors.

  • Radeon Software for Linux 18.50 Released - Just One Listed Change

    The Radeon Software for Linux 18.50 driver release (a.k.a. "AMDGPU-PRO" 18.50) is now officially available

    We were expecting the 18.50 driver update following Thursday's Radeon Software Adrenalin 2019 Edition driver for Windows having debuted. The 18.50 driver release has since been made available via the AMD web-site.

  • Radeon ROCm 1.9.1 vs. NVIDIA OpenCL Linux Plus RTX 2080 TensorFlow Benchmarks

    Following the GeForce RTX 2080 Linux gaming benchmarks last week with now having that non-Ti variant, I carried out some fresh GPU compute benchmarks of the higher-end NVIDIA GeForce and AMD Radeon graphics cards. Here's a look at the OpenCL performance between the competing vendors plus some fresh CUDA benchmarks as well as NVIDIA GPU Cloud TensorFlow Docker benchmarks.

  • Radeon Software Adrenalin 2019 Rolls Out While Linux Users Should Have AMDGPU-PRO 18.50

    AMD today released their Radeon Software Adrenalin 2019 Edition geared for Windows gamers while Linux users should have AMDGPU-PRO 18.50 available shortly for those wanting to use this hybrid Vulkan/OpenGL driver component that does also feature the AMDGPU-Open components too in their stable but dated composition.

    The 2019 Adrenalin Edition for Windows brings performance improvements for select Windows titles, new advisors to help configure games and settings, improved fan control, WattMan improvements, game streaming improvements, and more.

4 Unique Terminal Emulators for Linux

Filed under
Linux

Let’s face it, if you’re a Linux administrator, you’re going to work with the command line. To do that, you’ll be using a terminal emulator. Most likely, your distribution of choice came pre-installed with a default terminal emulator that gets the job done. But this is Linux, so you have a wealth of choices to pick from, and that ideology holds true for terminal emulators as well. In fact, if you open up your distribution’s GUI package manager (or search from the command line), you’ll find a trove of possible options. Of those, many are pretty straightforward tools; however, some are truly unique.

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Best of 2018: Fedora as your Linux desktop

Filed under
Linux
Red Hat

Gaming on your Linux desktop, trying alternative desktop environments, and tweaking little details such as your boot screen. Yes, it’s been a whole year again! What a great time to look back at the most popular articles on the Fedora Magazine written by our awesome contributors.

Let’s dive into the first article of the “best of 2018” series — this time focused on Fedora Workstation and how you like to use it on your Linux desktop.

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The Linux terminal is no one-trick pony

Filed under
Linux

Welcome to another day of the Linux command-line toys advent calendar. If this is your first visit to the series, you might be asking yourself what a command-line toy even is. We’re figuring that out as we go, but generally, it could be a game, or any simple diversion that helps you have fun at the terminal.

Some of you will have seen various selections from our calendar before, but we hope there’s at least one new thing for everyone.

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Nvidia unveils cheaper 4GB version of its Jetson TX2 and begins shipping its next-gen Xavier module

Filed under
Linux

Nvidia announced a lower-cost 4GB version of its Linux-driven Jetson TX2 module with half the RAM and eMMC and has begun shipping its next-gen Jetson AGX Xavier.

Nvidia will soon have three variants of its hexa-core Arm Jetson TX2 module: the original Jetson TX2, the more embedded, industrial temperature Jetson TX2i , and now a new Jetson TX2 4GB model. The chip designer also announced availability of its next-gen, robotics focused Jetson AGX Xavier module (see farther below).

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Stable kernels 4.19.9, 4.14.88, 4.9.145, 4.4.167, and 3.18.129

Filed under
Linux
Syndicate content

More in Tux Machines

GNOME Development Leftovers

  • Nightly GNOME Apps and New Adwaita GTK Theme Run Through
    In this video, we are quickly looking at Nightly GNOME Apps and a sneak peek at New Adwaita GTK Theme.
  • Emmanuele Bassi: And I’m home
    Of course I couldn’t stay home playing video games, recording podcasts, and building gunplas forever, and so I had to figure out where to go to work next, as I do enjoy being able to have a roof above my head, as well as buying food and stuff. By a crazy random happenstance, the GNOME Foundation announced that, thanks to a generous anonymous donation, it would start hiring staff, and that one of the open positions was for a GTK developer. I decided to apply, as, let’s be honest, it’s basically the dream job for me. I’ve been contributing to GNOME components for about 15 years, and to GTK for 12; and while I’ve been paid to contribute to some GNOME-related projects over the years, it was always as part of non-GNOME related work. The hiring process was really thorough, but in the end I managed to land the most amazing job I could possibly hope for.
  • Opera Launches Built-in Cryptocurrency Wallet for Android, ManagedKube Partners with Google Cloud to Provide a Monitoring App for Kubernetes Cluster Costs, QEMU 3.1 Released, IoT DevCon Call for Presentations and GNOME 3.31.3 Is Out
    GNOME 3.31.3 is out, and this will be the last snapshot of 2018. Note that this is development code meant for testing and hacking purposes. For a list of changes, go here, and the source packages are here.
  • Firmware Attestation
    When fwupd writes firmware to devices, it often writes it, then does a verify pass. This is to read back the firmware to check that it was written correctly. For some devices we can do one better, and read the firmware hash and compare it against a previously cached value, or match it against the version published by the LVFS. This means we can detect some unintentional corruption or malicious firmware running on devices, on the assumption that the bad firmware isn’t just faking the requested checksum. Still, better than nothing. Any processor better than the most basic PIC or Arduino (e.g. even a tiny $5 ARM core) is capable of doing public/private key firmware signing. This would use standard crypto using X.509 keys or GPG to ensure the device only runs signed firmware. This protects against both accidental bitflips and also naughty behaviour, and is unofficial industry recommended practice for firmware updates. Older generations of the Logitech Unifying hardware were unsigned, and this made the MouseJack hack almost trivial to deploy on an unmodified dongle. Newer Unifying hardware requires a firmware image signed by Logitech, which makes deploying unofficial or modified firmware almost impossible.
  • Robert Ancell: Interesting things about the GIF image format
  • GIFs in GNOME
  • About ncurses Colors
    These colors go back to CGA, IBM's Color/Graphics Adapter from the earlier PC-compatible computers. This was a step up from the plain monochrome displays; as the name implies, monochrome could display only black or white. CGA could display a limited range of colors. CGA supports mixing red (R), green (G) and blue (B) colors. In its simplest form, RGB is either "on" or "off". In this case, you can mix the RGB colors in 2x2x2=8 ways. Table 1 shows the binary and decimal representations of RGB.

Mozilla: Rust and WebAssembly, WebRender, MDN Changelog for November 2018, Things Gateway and Firefox 65 Beta 6 Testday

  • Rust and WebAssembly in 2019
    Compiling Rust to WebAssembly should be the best choice for fast, reliable code for the Web. Additionally, the same way that Rust integrates with C calling conventions and libraries on native targets, Rust should also integrate with JavaScript and HTML5 on the Web. These are the Rust and WebAssembly domain working group’s core values. In 2018, we made it possible to surgically replace performance-sensitive JavaScript with Rust-generated WebAssembly.
  • rust for cortex-m7 baremetal
  • WebRender newsletter #33
    Yes indeed. In order for picture caching to work across displaylists we must be able to detect what did not change after a new displaylist arrives. The interning mechanism introduced by Glenn in #3075 gives us this ability in addition to other goodies such as de-duplication of interned resources and less CPU-GPU data transfer.
  • MDN Changelog for November 2018
    Potato London started work on this shortly after one-time payments launched. We kicked it off with a design meeting where we determined the features that could be delivered in 4 weeks. Potato and MDN worked closely to remove blockers, review code (in over 25 pull requests), and get it into the staging environment for testing. Thanks to everyone’s hard work, we launched a high-quality feature on schedule. We’ve learned a lot from these payment experiments, and we’ll continue to find ways to maintain MDN’s growth in 2019.
  • K Lars Lohn: Things Gateway - a Virtual Weather Station
    Today, I'm going to talk about creating a Virtual Weather Station using the Things Gateway from Mozilla and a developer account from Weather Underground. The two combined enable home automation control from weather events like temperature, wind, and precipitation.
  • Taskgraph Like a Pro
    Have you ever needed to inspect the taskgraph locally? Did you have a bad time? Learn how to inspect the taskgraph like a PRO. For the impatient skip to the installation instructions below.
  • Firefox 65 Beta 6 Testday, December 21th
    We are happy to let you know that Friday, December 21th, we are organizing Firefox 65 Beta 6 Testday. We’ll be focusing our testing on: and changes and UpdateDirectory. Check out the detailed instructions via this etherpad.

Fedora Developers Are Trying To Figure Out The Best Linux I/O Scheduler, Fedora 29 Review and Fedora Program Management

ARM's Work in Linux (Kernel)

  • Energy Model Management Framework Queued For Linux 4.21
    A new framework queued for introduction with the Linux 4.21 kernel is the ARM-developed Energy Model Management Framework. With different hardware and drivers exposing the processor/system energy consumption in different manners, the Energy Model Management Framework tries to provide a standardized way of accessing the power values for each performance domain in a system. This can help kernel drivers/schedulers and other code that could make smarter decisions based upon current energy use be able to do so via this standardized framework for acquiring the power information on capable systems.
  • ARM's AArch64 Adding Pointer Authentication Support To The Linux 4.21 Kernel
    The 64-bit ARM architecture code (a.k.a ARM64 / AArch64) with the Linux 4.21 kernel is seeing pointer authentication added as a new security feature. Pointer authentication can be supported by ARMv8.3 hardware and newer to allow for signing and authenticating of pointers against secret keys. The purpose of this pointer authentication is to mitigate ROP attacks and other potential buffer-overrun-style attacks. This ARM64_PTR_AUTH functionality will enable pointer authentication for all user-space processes and the presence of supported hardware is determined at run-time. ARM developers have been working on the plumbing for this Linux kernel support for it the past year.