Blog Section
On April 23, 2020, at 18:20 Moscow time, Canonical released Ubuntu 20.04 LTS, codenamed 'Focal Fossa'. The word 'Focal' in the name is associated with the phrase 'focal point', as well as the idea of something being in focus or at the forefront. Fossa is a cat-like predator native to the island of Madagascar. The support period for the main package (section main) lasts for five […]
A Single-page Application (SPA) is a collection of static JavaScript and HTML files, along with images and other resources. Since they do not change dynamically, publishing them on the internet is very simple. There are many affordable and even free services available, starting from GitHub Pages (or for some even from narod.ru) to CDNs like Amazon […]
Hello! My name is Anton Datsenko, and I'm responsible for the development of corporate solutions and services at Beeline Business. Today, I will tell you how we use failover technologies and load balancing in MultiSIM, for which clients this product is more crucial than it seems at first glance, and a bit about networks in general. Let me clarify that this post will discuss […]
Roman Gushchin from Facebook published a set of patches in the Linux kernel developers mailing list, implementing a new slab memory controller. This new controller is notable for transferring slab accounting from the memory page level to the kernel object level, allowing for the shared use of slab pages across different cgroups instead of allocating separate slab caches for […]
A new release of the compact cryptographic library wolfSSL 4.4.0 is available, optimized for use on embedded devices with limited CPU and memory resources, such as IoT devices, smart home systems, automotive infotainment systems, routers, and mobile phones. The code is written in C and distributed under the GPLv2 license. The library provides high-performance implementations of modern cryptographic algorithms, including ChaCha20, Curve25519, NTRU, […]
The Linux Foundation has announced the ninth release of the AGL UCB (Automotive Grade Linux Unified Code Base) distribution, which aims to develop a universal platform for use in various automotive subsystems, from dashboards to automotive infotainment systems. AGL-based solutions are used in the information systems of Toyota, Lexus, Subaru Outback, Subaru Legacy, and light commercial vehicles from Mercedes-Benz Vans. The distribution is based on […]
The release of KolibriN 10.1 has been announced — an operating system primarily written in assembly language. KolibriN is, on one hand, a user-friendly version of KolibriOS, and on the other, its maximum build. In other words, the project is created to showcase to newcomers all the capabilities available in the alternative operating system Kolibri at this time. Distinctive features of the build include: Powerful multimedia capabilities: the FPlay video player, viewer […]
One of the members of the Facebook development team, Roman Gushchin, proposed a set of patches for the Linux kernel aimed at improving memory management through the implementation of a new memory management controller — slab (slab memory controller). Slab allocation is a memory management mechanism designed for more efficient memory allocation and significant fragmentation reduction. The basis of […]
Continuing the topic of logging large data streams raised in the previous article about partitioning, this one will explore ways to reduce the 'physical' size of data stored in PostgreSQL and its impact on server performance. We will discuss TOAST settings and data alignment. 'On average,' these methods will save a modest amount of resources, but — without any modifications to the application code. However, […]
Recently, I discussed how to boost the performance of 'read' SQL queries from a PostgreSQL database using standard recipes. Today, we will focus on how to make database writes more efficient without using any 'tweaks' in the config — simply by correctly organizing data flows. #1. Partitioning This article is about how and why it is worth organizing application partitioning 'in theory' […]
The release of Node.js 14.0 has occurred, a platform for executing network applications in JavaScript. Node.js 14.0 belongs to the long-term support branches, but this status will only be assigned in October after stabilization. Support for Node.js 14.0 will continue until April 2023. The support for the previous LTS branch Node.js 12.0 will last until April 2022, while the earlier LTS branch 10.0 […]
ReversingLabs has published results from an analysis of type squatting in the RubyGems repository. Type squatting is typically used to distribute malicious packages, designed to trick inattentive developers who might make a typo while searching or overlook the differences. The study identified over 700 packages whose names are similar to popular packages and differ only by minor details, such as replacing similar letters or using […]
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