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today's leftovers: GNU/Linux at Dropbox, Debian and Gentoo Development, Managing Linux Disks

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Misc
  • Optimizing web servers for high throughput and low latency

    This is an expanded version of my talk at NginxConf 2017 on September 6, 2017. As an SRE on the Dropbox Traffic Team, I’m responsible for our Edge network: its reliability, performance, and efficiency. The Dropbox edge network is an nginx-based proxy tier designed to handle both latency-sensitive metadata transactions and high-throughput data transfers. In a system that is handling tens of gigabits per second while simultaneously processing tens of thousands latency-sensitive transactions, there are efficiency/performance optimizations throughout the proxy stack, from drivers and interrupts, through TCP/IP and kernel, to library, and application level tunings.

  • Summary of the discussion on off-line keys.
  • Xiaomi’s stunning Mi Mix gets a sequel, the Mi Mix 2
  • Squeezing More Juice Out Of Gentoo With Graphite, LTO Optimizations

    Developer Shane Peelar has come up with a Gentoo Portage configuration for building out the distribution with aggressive compiler optimizations in the name of performance.

    Peelar's Gentoo configuration will build with -O3 optimizations, GCC Graphite optimizations, and LTO (Link Time Optimizations).

  • Debian-Administration.org is closing down

    The site will go read-only at the end of the month, and will slowly be stripped back from that point towards the end of the year - leaving only a static copy of the articles, and content.

  • What you need to know to manage Linux disks

    There are numerous other commands for examining disks and file systems. Those described here are some of the most useful and informative. Using them periodically has advantages as the easiest way to spot problems is becoming so used to the output of commands such as these that you easily spot the kind of differences that might indicate problems.

  • Install and Configure LEMP in Debian 9

More in Tux Machines

Android Leftovers

DragonFlyBSD 5.2.2 Released To Fix The Lazy State Save/Restore Bug

DragonFlyBSD 5.2.2 is now available as the latest stable release to this popular BSD operating system. While there aren't usually two point releases per cycle for DragonFlyBSD, the v5.2.2 release is coming to address the recent "Lazy FPU" vulnerability affecting Intel CPUs due to Lazy State Save/Restore as the newest CPU speculation bug. DragonFlyBSD began patching their kernel earlier this month and now those fixes are available in stable form with the DragonFlyBSD 5.2.2 release. The OpenBSD folks have also been changing around their kernel and FreeBSD 11.2 RC3 is also mitigated. Read more

Canonical/Ubuntu: Canonical's Engineering Tech Lead, Field Product Manager, and Designers'/Developers' Updates

  • A Complete Look At Spectre V1/V2/V4 & Meltdown
    Canonical's Engineering Tech Lead, Gavin Guo, has passed along a big slide deck on a presentation he is preparing about the Spectre and Meltdown CPU vulnerabilities. Gavin's presentation is mostly focused on Spectre V2 since that is vulnerable to attacking the host system from a guest VM, but the other vulnerabilities are also covered in his 77-page slide deck with great detail.
  • A unified OpenStack for a scalable open infrastructure
    Stu Miniman and John Boyer of theCUBE interviewed Mark Baker, Field Product Manager, Canonical at the OpenStack Summit in Vancouver. Read on to to find out about OpenStack’s increasing maturity. The Kubernetes and OpenStack story isn’t simple. Challenges exist, and plenty of pathfinding still needs to take place when it comes to Kubernetes. Customers want to take different approaches with how they want to plug together OpenStack components in order to create a unified stack is complex. Some customers want Kubernetes running alongside OpenStack, or on top of OpenStack, or even OpenStack running on Kubernetes.
  • Design and Web team summary – 18 June 2018
    Welcome to the latest work and updates from the design and web team.
  • Ubuntu Weekly Newsletter Issue 532
    Welcome to the Ubuntu Weekly Newsletter, Issue 532 for the week of June 10 – 16, 2018.

How Linux and Open Tech Empower Medical Healthcare

Open Source is not just for IT industry. Linux and Open Source technologies are impacting Medical and Healthcare industries as well. Read more