With this short post, I would like to dispel one misunderstanding related to the analysis of AWR databases running on Oracle Exadata. For almost 10 years, I have been constantly faced with the question: what is the contribution of Exadata Software to performance? Or with the use of newly formed words: to what extent does the work of a particular database “exdate”? Often this correct question, in my opinion, is given the wrong […]
This article is about how Linux graphics work and what components it consists of. It has many screenshots of various implementations of desktop environments. If you don't have much of a difference between KDE and GNOME, or if you do, but would like to know what other alternatives are, then this article is for you. It is an overview, and although it contains many […]
Hey Habr! Probably, each of us has such a file where we hide something useful and interesting for ourselves. Some links to articles, books, repositories, manuals. It can be bookmarks in the browser or even just open tabs left for later. Over time, all this swells, links stop opening, and most of the material simply becomes outdated. A […]
Today Xiaomi released a simplified version of the third generation Mi Walkie Talkie. Let us remember that the first iteration of the device was shown back in 2017. The cost of the new device, called Mi Walkie Talkie Lite, is only $18. The walkie-talkie boasts a transmission power of 3 W and a range of one to five kilometers in open space, and up to […]
NVIDIA CEO Jensen Huang presented the long-awaited next-generation gaming video cards from his kitchen. As expected, older solutions were announced today: GeForce RTX 3090, GeForce RTX 3080 and GeForce RTX 3070. The video cards are built on Ampere generation GPUs made using Samsung's 8nm process technology, while their Turing generation predecessors were produced using 12nm technology TSMC. […]
Double Damage Games studio announced the release date of Rebel Galaxy Outlaw outside the Epic Games Store (EGS) on the official website of its series of space action adventure games Rebel Galaxy. As it became known, Rebel Galaxy Outlaw will reach Steam, PlayStation 4, Xbox One and Nintendo Switch on September 22, that is, more than a year after its release in the digital store […]
The Apache Software Foundation has released the Apache OpenMeetings 5.0 web conferencing server, which allows you to organize audio and video conferencing via the Web. Both webinars with one speaker and conferences with an arbitrary number of participants simultaneously interacting with each other are supported. Additionally, tools are provided for integration with a calendar scheduler, sending individual or broadcast notifications and invitations, sharing […]
New editions of the Linux From Scratch 10 (LFS) and Beyond Linux From Scratch 10 (BLFS) manuals, as well as the LFS and BLFS editions with the systemd system manager, have been introduced. Linux From Scratch provides instructions for building a basic Linux system from scratch using only the source code for the required software. Beyond Linux From Scratch augments LFS instructions with assembly information […]
The Chrome OS 85 operating system was released, based on the Linux kernel, the upstart system manager, the ebuild / portage assembly toolkit, open components and the Chrome 85 web browser. The Chrome OS user environment is limited to a web browser, and web applications are used instead of standard programs, however, Chrome OS includes a full multi-window interface, desktop and taskbar. Build Chrome OS 85 […]
After a hiatus of more than two years, a new version of the well-known system resource monitor and process manager htop has been released. This is a very popular alternative to the top utility, which does not require special configuration and is more convenient to use in the default configuration. The project was almost abandoned after the author and main developer of htop retired. The community took the matter […]
A new version of the QtProtobuf library has been released. QtProtobuf is a free library released under the MIT license. With its help you can easily use Google Protocol Buffers and gRPC in your Qt project. Key changes: Added Qt type support library. Now you can use some of the Qt types in the description of protobuf messages. Added Conan support, thanks to GamePad64 for your help! Calling methods […]
More precisely, a framework for building operating systems - this is the terminology preferred by the authors from Genode Labs. This microkernel OS designer supports several microkernels from the L4 family, the Muen kernel and its own minimalistic base-hw kernel. The developments are available under the AGPLv3 license and, optionally, a commercial license: https://genode.org/about/licenses The attempt to make a variant available for use by someone other than microkernel development enthusiasts is called […]
