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Programming: LLVM 7.0, FarmBot, Mozilla and Rust

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Development
  • LLVM 7.0 / Clang 7.0 Is Now Under Development

    LLVM/Clang 6.0 has been branched, thus making LLVM/Clang 7.0 open for development on master.

    The LLVM 6.0 branching has taken place a few weeks earlier than is traditionally done to satisfy an unnamed, large user of LLVM to jive with that company's internal testing processes. The branching / feature development is now over but the release candidates will not begin until mid-January.

  • FarmBot Wants to Cultivate an Open-Source Future for Remote Farming

    “Farm from anywhere” is a phrase we’re likely to hear more and more of as technology enables easier access to fresh, locally grown food. We just wrote about Babylon Micro-Farms, a remote, hydroponic farm you can keep inside your living room. There’s also a healthy urban farming market: thanks to companies like Farmshelf and Smallhold, restaurants, schools, and the average consumer get better access to fresh food and more involved in the food production itself.

  • The Rust Programming Language Blog: New Year's Rust: A Call for Community Blogposts

    ‘Tis the season for people and communities to reflect and set goals- and the Rust team is no different. Last month, we published a blogpost about our accomplishments in 2017, and the teams have already begun brainstorming goals for next year.

    Last year, the Rust team started a new tradition: defining a roadmap of goals for the upcoming year. We leveraged our RFC process to solicit community feedback. While we got a lot of awesome feedback on that RFC, we’d like to try something new in addition to the RFC process: a call for community blog posts for ideas of what the goals should be.

    As open source software becomes more and more ubiquitous and popular, the Rust team is interested in exploring new and innovative ways to solicit community feedback and participation. We’re commited to extending and improving our community organization and outreach- and this effort is just the first of what we hope to be many iterations of new kinds of community feedback mechanisms.

  • This Week in Rust 215

    Hello and welcome to another issue of This Week in Rust! Rust is a systems language pursuing the trifecta: safety, concurrency, and speed. This is a weekly summary of its progress and community. Want something mentioned? Tweet us at @ThisWeekInRust or send us a pull request. Want to get involved? We love contributions.

  • Mozilla Will Delete Firefox Crash Reports Collected by Accident

    Mozilla said last week it would delete all telemetry data collected because of a bug in the Firefox crash reporter.

    According to Mozilla engineers, Firefox has been collecting information on crashed background tabs from users' browsers since Firefox 52, released in March 2017.

    Firefox versions released in that time span did not respect user-set privacy settings and automatically auto-submitted crash reports to Mozilla servers. The browser maker fixed the issue with the release of Firefox 57.0.3.

  • Mozilla GFX: WebRender newsletter #11

    Newsletter #11 is finally here, even later than usual due to an intense week in Austin where all of Mozilla’s staff and a few independent contributors gathered, followed by yours truly taking two weeks off.

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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