Probereme využití fotovoltaické elektrárny pro nabíjení elektromobilu. Popíšu reálné zkušenosti a jak může fotovoltaická elektrárna, navíc ve spojení s nákupem elektřiny na spotovém trhu, provozu elektromobilu výrazně pomoci.
Ve druhém článku o knihovně LibCST, která umožňuje modifikaci zdrojových kódů napsaných v Pythonu s využitím CST (derivačního stromu), si ukážeme, jak naprogramovat přejmenování proměnné, záměnu operátorů, přejmenování funkce apod.
As a follow-up to the article earlier this month around DeviceMapper's Virtual Data Optimizer (VDO) preparing to be upstreamed, it was successfully merged today by Linus Torvalds as the newest shiny feature of Linux 6.9...
All of the ARM SoC updates and new machine/platform additions were submitted and merged on Tuesday for the ongoing Linux 6.9 kernel merge window...
System76 had been planning an initial alpha release of their Rust-written COSMIC desktop environment to debut at the end of Q1 (March), but now they are delaying the first alpha to May for allowing time to wrap up feature work on their new desktop apps...
Richard Hughes of Red Hat who leads development of the Linux Vendor Firmware Service (LVFS) and Fwupd firmware updating utility is currently pondering plans for 2025. Among the ideas he's seeking input from the community is on whether the main focus should be on servers, desktop motherboards, laptops, or other removable hardware/peripherals...
The Linux work around atomic consoles and threaded printing remains ongoing. This work is particularly interesting as it's the last major blocker before real-time "RT" kernel support can land. This work sadly isn't ready for the new Linux 6.9 cycle but at least some printk clean-ups are landing for issues discovered during the atomic consoles effort...
While the new Intel Xe kernel graphics driver was upstreamed in Linux 6.8 as this modern DRM driver that is opt-in for current generation hardware and aims to be the default for Lunar Lake / Xe2, currently with Mesa you must build the Intel ANV Vulkan and Iris Gallium3D driver code with the "intel-xe-kmd" option to enable compatibility for this alternative kernel driver to i915. With Mesa 24.1 coming next quarter, that Intel Xe kernel driver support will be enabled out-of-the-box...
Valve contractor Mike Blumenkrantz has been known for many great Mesa improvements the past several years, especially around Zink for the OpenGL-on-Vulkan implementation within Mesa. Over the past four years he has taken on many great performance optimizations and other significant code undertakings to improve Mesa. Blumenkrantz has picked his latest battle and appears to be around Mesa's Direct Rendering Infrastructure (DRI) interfaces...
David Airlie has submitted all of the Direct Rendering Manager (DRM) kernel graphics/display driver updates today for Linux 6.9...
Building off last November's release of the big OBS Studio 30.0 release, OBS Studio 30.1 debuted today as the newest feature release...
Představíme si principy dotazovacího jazyka evitaQL, konstrukci dotazů a jejich chování. Rozebereme si oblasti, ve kterých se evitaDB liší od ostatních databází a ukážeme si, jak je využít ve svůj prospěch.
Sonda do světa otevřeného softwaru. Dnes si provedeme analýzu shellových skriptů, vyzkoušíme desktopové prostředí ve webovém prohlížeči, dáme si dohromady osobní finance a převedeme si videosoubory na animované obrázky.
Last week saw Plasma 6.0.1 for an initial batch of bug fixes for this major desktop environment that debuted the week prior. Out today is Plasma 6.0.2 with another round of bug fixes that have been addressed over the past week...
VUSec and IBM Research Europe today announced Speculative Race Conditions (SRCs) as a as a new class of vulnerabilities where thread synchronization primitives using conditional branches can be microarchitecturally bypassed on speculative paths using a Spectre-V1 attack. The researchers have dubbed CVE-2024-2193 as GhostRace and is said to affect all major CPU vendors...
Intel has released new CPU microcode for addressing five security issues and additionally there is newly-merged Linux kernel code for mitigating the new Register File Data Sampling "RFDS" micro-architectural vulnerability affecting Atom / E cores...
With the upgraded Linux kernel, compiler, and other software upgrades with next month's Ubuntu 24.04 LTS, those using recent AMD EPYC server processors like the 4th Gen EPYC Genoa(X) / Bergamo / Siena processors stand to benefit from greater performance over the current Ubuntu 22.04 LTS release...
The recently covered overhaul of the x86 CPU topology code to clean-up quite a code mess has been merged for Linux 6.9. Among other benefits, this improved topology code properly accounts for modern Intel Core hybrid systems with a mix of P and HT-less E cores...
The big set of networking subsystem updates have been sent in for the Linux 6.9 merge window including a number of new wired and wireless devices being supported as well as a number of core networking improvements and optimizations...
AdaptiveCpp 24.02 is out this week as the newest version of this SYCL compiler formerly known as hypSYCL and Open SYCL. AdaptiveCpp supports C++-based heterogeneous programming models targeting all major CPU and GPU vendors thanks to SYCL and C++ standard parallelism...