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Linux

OpenZFS Could Soon See Much Better Deduplication Support

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Linux

This is good news for OpenZFS performance assuming the dedup support is punctually opened up and is an acceptable state for quickly landing in this ZFS file-system code used by Linux with "ZFS On Linux" and in the process of by the likes of FreeBSD.

The ZFS file-system has supported data deduplication for the past decade. However, it's not widely recommended due to being very heavy on RAM usage as well as relatively taxing on the CPU, so it will be interesting to see just how effective is the Panzura implementation.

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Audiocasts/Shows: Linux in the Ham Shack and Linux Headlines

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GNU
Linux
  • LHS Episode #302: The End of Kenwood

    Welcome to Episode 302 of Linux in the Ham Shack. In this short topic episode, the hosts discuss the potential end of Kenwood in the amateur radio market, emcom in Montucky, Storm Area 51, HF on satellites, a huge update for PulseAudio, the Linux 5.3 kernel and much more. Thank you for listening and have a fantastic week.

  • 09/19/2019 | Linux Headlines

    Fresh init system controversy at the Debian project, a more scalable Samba, and a big release for LLVM.

    Plus GitHub's latest security steps and a new version of OBS Studio.

Linux 5.4 Development, PRs, Merges

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Linux
  • BLK-IOCOST Merged For Linux 5.4 To Better Account For Cost Of I/O Workloads

    BLK-IOCOST is a new I/O controller by veteran kernel developer Tejun Heo that is a work-conserving proportional controller. He goes over blk-iocost in great detail in one of the earlier patch series, "It currently has a simple linear cost model builtin where each IO is classified as sequential or random and given a base cost accordingly and additional size-proportional cost is added on top. Each IO is given a cost based on the model and the controller issues IOs for each cgroup according to their hierarchical weight. By default, the controller adapts its overall IO rate so that it doesn't build up buffer bloat in the request_queue layer, which guarantees that the controller doesn't lose significant amount of total work...The controller provides extra QoS control knobs which allow tightening control feedback loop as necessary." See that aforelinked article for more details and results.

  • Btrfs & XFS File-Systems See More Fixes With Linux 5.4

    The mature XFS and Btrfs file-systems continue seeing more fixes and cleaning with the now in-development Linux 5.4 kernel.

    On the Btrfs front the Linux 5.4 changes are summed up as "work on code refactoring, sanity checks and space handling. There are some less user visible changes, nothing that would particularly stand out." The Btrfs changes include deprecating a few items as well as improving the exposure of debugging information via sysfs. See the pull request for all the Btrfs file-system fixes and changes this round.

  • Linux 5.4 DRM Pull Submitted With AMD Navi 12/14, Arcturus & Renoir Plus Intel Tigerlake

    While we've known about the many features for a while if you are a faithful Phoronix reader, today the Direct Rendering Manager (DRM) graphics driver changes were sent in for the Linux 5.4 kernel.

Spartan Edge Accelerator Arduino Compatible Board Combines ESP32 & Spartan-7 FPGA

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GNU
Linux
Hardware

Xilinx Spartan FPGAs have been around for a while, and a few years ago we covered Spartan-6 FPGA boards such as Spartixed and miniSpartan6+.

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SMARC carrier board and design service supports six modules

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Linux
Hardware

MSC announced a compact SimpleFlex carrier board and custom manufacturing service that supports six MSC SMARC 2.0 modules with i.MX8, i.MX8M. i.MX8M Mini. i.MX6, Intel Apollo Lake, and Xilinx Zynq UltraScale+.

In 2016, Avnet-owned MSC Technologies announced a 148 x 102mm carrier board form-factor and manufacturing service called SimpleFlex with an initial MSC Q7-MB-EP5 product designed for its Qseven modules. Now, it has announced a smaller, 146 x 80mm MSC SM2S-MB-EP5 version for MSC SMARC 2.0 “short” modules. The new board adds a USB Type-C port with DisplayPort along with an M.2 M-key slot for storage.

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Stable kernels 5.2.16, 4.19.74, and 4.14.145

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Linux
  • Linux 5.2.16

    I'm announcing the release of the 5.2.16 kernel.

    All users of the 5.2 kernel series must upgrade.

    The updated 5.2.y git tree can be found at:
    git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.2.y
    and can be browsed at the normal kernel.org git web browser:
    https://git.kernel.org/?p=linux/kernel/git/stable/linux-s...

  • Linux 4.19.74
  • Linux 4.14.145

Linux Container Technology Explained (Contributed)

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Linux

State and local governments’ IT departments increasingly rely on DevOps practices and agile development methodologies to improve service delivery and to help maintain a culture of constant collaboration, iteration, and flexibility among all stakeholders and teams.

However, when an IT department adopts agile and DevOps practices and methodologies, traditional IT problems still need to be solved. One long-standing problem is “environmental drift,” when the code and configurations for applications and their underlying infrastructure can vary between different environments. State and local IT teams often lack the tools necessary to mitigate the effects of environmental drift, which can hamper collaboration and agility efforts.

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Ubuntu-maker Canonical shares top 5 snaps per Linux distribution

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Linux
Ubuntu

All Linux users are the same, right? Oh, hell no! Linux users are a diverse bunch, with differing opinions, tastes, and personalities. In fact, that is probably a contributing factor to the fragmentation of the Linux community. Linux users have lots of options between distributions, desktop environments, and more -- they are not stuck in a box like Windows 10 users.

To highlight how different Linux users can be, Canonical has released some data about the installation of snaps, categorized by distro. It chose six of the most popular Linux-based operating systems for its analysis -- Ubuntu, Debian, Fedora, CentOS, Arch Linux, and Manjaro. It then shared the top five most popular snaps for each distribution.

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Linux-powered NVR can stream and analyze 12 HD cam feeds without a cloud connection

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Linux

A new “Camect” camera hub and 1TB NVR that can aggregate up to 12 HD streams has funded on Indiegogo. The $279 device runs Linux on an Apollo Lake SoC and provides AI algorithms to analyze video without a cloud service.

A Mountain View-based startup called Camect has successfully launched an Apollo Lake-based, AI-enabled camera hub and network video recorder for analyzing surveillance feeds. After more than quintupling its $50K Indiegogo goal, the Camect is available for another 15 days in $279 early bird packages, down from the eventual $399 when it ships in January.

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Audiocasts/Shows/Video: Ubuntu Podcast, Choose Linux, BSD Now and ArcoLinux 19.09 Run Through

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GNU
Linux
  • Ubuntu Podcast from the UK LoCo: S12E24 – Gran Turismo

    This week we’ve been cataloging hardware (mostly crusty Thinkpads). We interview Kyle Fazzari, serior robotics engineer at Canonical, bring you some command line love and go over all your feedback.

    It’s Season 12 Episode 24 of the Ubuntu Podcast! Alan Pope, Mark Johnson and Kyle Fazzari are connected and speaking to your brain.

  • Introducing New People to Linux | Choose Linux 18

    There’s lots to consider when setting someone up with Linux for the first time. User needs and expectations, distro choice, hardware, and so much more.

    We discuss our experiences, and ask some fundamental questions.

  • git commit FreeBSD | BSD Now 316

    NetBSD LLVM sanitizers and GDB regression test suite, Ada—The Language of Cost Savings, Homura - a Windows Games Launcher for FreeBSD, FreeBSD core team appoints a WG to explore transition to Git, OpenBSD 6.6 Beta tagged, Project Trident 12-U5 update now available, and more.

  • ArcoLinux 19.09 Run Through

    In this video, we are looking at ArcoLinux 19.09 with XFCE 4.14.

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