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Servers: Kubernetes, Compression and Debian Activities

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Server
  • The state of Kubernetes: 6 facts you might not know

    Kubernetes celebrates its sixth birthday on June 7: One of the fastest-growing open source projects ever, it’s driving significant change in enterprise IT, helping developers manage containers at scale. Moreover, it helps them develop applications faster and manage resources in automated ways. That’s important not only in DevOps and agile environments, but also in any enterprise IT environment pushing for faster software development and more experimentation. And any CIO or IT leader will tell you, the CEO’s biggest wish right now is faster response to customer needs and outside changes - most recently, a global pandemic.

    How much Kubernetes growth are we talking about? According to the CNCF Cloud Native Survey for 2019, 78 percent of respondents were using Kubernetes in production, up from 58 percent the previous year.

  • Russell Coker: Comparing Compression

    For distributions like Debian which have large archives of files that are compressed once and transferred a lot the “zstd --ultra -22” compression might be useful with multi-threaded compression. But given that Debian already has xz in use it might not be worth changing until faster CPUs with lots of cores become more commonly available. One could argue that for Debian it doesn’t make sense to change from xz as hard drives seem to be getting larger capacity (and also smaller physical size) faster than the Debian archive is growing. One possible reason for adopting zstd in a distribution like Debian is that there are more tuning options for things like memory use. It would be possible to have packages for an architecture like ARM that tends to have less RAM compressed in a way that decreases memory use on decompression.

    For general compression such as compressing log files and making backups it seems that zstd is the clear winner. Even bzip2 is far too slow and in my tests zstd clearly beats gzip for every combination of compression and time taken. There may be some corner cases where gzip can compete on compression time due to CPU features, optimisation for CPUs, etc but I expect that in almost all cases zstd will win for compression size and time. As an aside I once noticed the 32bit of gzip compressing faster than the 64bit version on an Opteron system, the 32bit version had assembly optimisation and the 64bit version didn’t at that time.

  • Thorsten Alteholz: My Debian Activities in May 2020

    This month I accepted 211 packages and rejected only 9. The overall number of packages that got accepted was 228.

More in Tux Machines

Mozilla: Rustup 1.22.0, Servo and Performance Improvements via Formally-Verified Cryptography in Firefox

    • Announcing Rustup 1.22.0

      The rustup working group is happy to announce the release of rustup version 1.22.0. Rustup is the recommended tool to install Rust, a programming language that is empowering everyone to build reliable and efficient software.

    • This Week In Servo 131

      Welcome back everyone - it’s been a year without written updates, but we’re getting this train back on track! Servo hasn’t been dormant in that time; the biggest news was the public release of Firefox Reality (built on Servo technology) in the Microsoft store. In the past week, we merged 44 PRs in the Servo organization’s repositories.

    • Performance Improvements via Formally-Verified Cryptography in Firefox

      Cryptographic primitives, while extremely complex and difficult to implement, audit, and validate, are critical for security on the web. To ensure that NSS (Network Security Services, the cryptography library behind Firefox) abides by Mozilla’s principle of user security being fundamental, we’ve been working with Project Everest and the HACL* team to bring formally-verified cryptography into Firefox. In Firefox 57, we introduced formally-verified Curve25519, which is a mechanism used for key establishment in TLS and other protocols. In Firefox 60, we added ChaCha20 and Poly1305, providing high-assurance authenticated encryption. Firefox 69, 77, and 79 improve and expand these implementations, providing increased performance while retaining the assurance granted by formal verification.

today's howtos

Stable Clonezilla live 2.6.7-28 Released

This release of Clonezilla live (2.6.7-28) includes major enhancements and bug fixes.
ENHANCEMENTS and CHANGES from 2.6.6-15

  • The underlying GNU/Linux operating system was upgraded. This release is based on the Debian Sid repository (as of 2020/Jun/30).
  • Linux kernel was updated to 5.7.6-1.
  • ocs-iso, ocs-live-dev: sync syslinux-related files when copying syslinux exec files.
  • When creating recovery iso/zip file, if it's in Clonezilla live environment, we have those syslinux files. Use that first so the version mismatch can be avoided. Ref: https://sourceforge.net/p/clonezilla/support-requests/127/
  • Move grub-header.cfg from bootx64.efi to grub.cfg so that it's more flexible.
  • To avoid conflict with the patch of grub in CentOS/Fedora, for GRUB EFI NB MAC/IP config style, the netboot file is now like grub.cfg-drbl-00:50:56:01:01:01 and grub.cfg-drbl-192.168.177.2 not grub.cfg-01-* anymore.
  • Add xen-tools
  • Partclone was updated to 0.3.14. The codes about xfs was updated to be 4.20.0.
  • Package exfat-fuse was removed since the kernel has module for that.
  • A better mechanism to deal with linuxefi/initrdefi or linux/initrd in the grub config was added.
  • Read more

Pico-ITX board based on i.MX8M ships with Linux BSP

F&S has launched a $407 and up “armStone MX8M” Pico-ITX SBC that runs Linux on an i.MX8M with up to 8GB LPDDR4 and 64GB eMMC with GbE, WiFi/BT, 5x USB, MIPI-CSI, DVI, and a mini-PCIe slot. F&S Elektronik Systeme originally announced the NXP i.MX8M-based armStone MX8M Pico-ITX board in early 2018 with an intention to begin sampling in Q2 of that year. The i.MX8M-based SBC has finally arrived, selling for 360 Euros ($407) in a kit that includes cables, a Yocto/Buildroot BSP, and full access to documentation. The key new addition since the 2018 announcement is a mini-PCIe slot and SIM card slot. Instead of supplying 4x USB 2.0 host ports, you get 2x USB 3.0 and 2x USB 2.0, and the micro-USB OTG port has been updated from 2.0 to 3.0. Read more