Svobodný software

Ukázali jsme si konstrukci, trénink a validaci neuronových sítí s využitím knihovny PyTorch. Zbývá nám ovšem seznámit se blíže s konceptem afinních transformací a aktivačních funkcí. Právě to je téma dnešního článku.

OpenMandriva Lx 6.0 Rock is now available with the KDE Plasma 6 desktop shipping by default while still offering both Wayland and X11 session options. There is also now an official server edition of OpenMandriva...

Víte, co je lepší než nový procesor? Nové znalosti! A víte, co je ještě lepší než nové znalosti? Nové znalosti, které vám zaplatí Úřad práce formou dotací. Naučíte se něco užitečného s podporou EU.

The Linux 6.15 kernel has just merged a fix for the big performance regression I spotlighted yesterday on Phoronix with a huge hit to the Nginx HTTPS web server performance that could see a 3x regression from the in-development Linux 6.15 kernel code. It turns out other workloads/applications also were negatively impacted by this regression. While a stumper at first even with the bisected commit, the issue was luckily resolved very quickly.

Mesa 25.1-rc2 is now available for testing as the newest weekly test version of this collection of OpenGL and Vulkan drivers. Mesa 25.1 continues working its way toward a stable release in May...

Earlier this month Canonical announced Ubuntu Linux support for the Orange Pi RV2 as a low-cost RISC-V developer board. The Orange Pi RV2 with eight RISC-V cores and 8GB of RAM costs just around $64 USD. The price point and specs were interesting that I ordered one and have been running performance benchmarks on it since for seeing how capable this is as finally an interesting, low-cost and readily available RISC-V board.

The newest open-source Linux driver being worked on by AMD engineers is a Remote Direct Memory Access (RDMA) solution for their Pensando networking hardware...

Back in March some ideas were talked about by Canonical engineers for Ubuntu Linux to move to Rust Coreutils and other Rust-written system components. Some of this is likely to materialize for the Ubuntu 25.10 release due out in October to allow for sufficient testing ahead of the all important Ubuntu 26.04 LTS release next year. Today the more solidified plans have been laid out for moving to the Rust Coreutils as a replacement to GNU Coreutils with Ubuntu 25.10...

Following a lot of work in this direction toward the end goal of removing GNOME X11 support, this milestone may finally be acheived for the Fedora 43 cycle due out by the end of the year. A change proposal has been filed for removing the GNOME X11 packages in the repository and in turn making the GNOME desktop Wayland-only on Fedora Linux...

One of the biggest surprises of last year was finding out that VMware has been working on shifting VMware Workstation from proprietary code to building atop the upstream KVM code within the Linux kernel. Following the initial patches from last October, an updated patch series was sent out on the Linux kernel mailing list yesterday for working on this transition...

The Google Pixel 4a smartphones launched in mid-2020 and now in mid-2025 it looks like we might finally be close to seeing mainline kernel support for the Pixel 4a devices and other hardware making use of Qualcomm Snapdragon 730/730G/732G SoCs...

QEMU 10.0 was released today as the newest version of this emulator code that plays an important role in the open-source Linux virtualization stack...

Brzy završí národní bezpečnostní tým CSIRT.CZ patnáct let ve sdružení CZ.NIC. Jak se za tu dobu změnila naše činnost, jaké změny pozorujeme v incidentech, jaké další služby provozujeme kromě samotného řešení incidentů?

Sonda do světa otevřeného softwaru. Dnes si představíme nedávno otevřený software pro simulaci barvosleposti, podíváme se zápisník pro Python, vyzkoušíme prohlížeč a konvertor 3D modelů a řekneme si o „kotěcím“ emulátoru terminálu.

With the Linux 6.15 kernel settling down nicely, I've been testing out the current Linux Git state on more systems in looking for any performance changes. Unfortunately this week I ran into a large performance regression affecting the Nginx HTTP(S) web server. Here's a look at that problem currently affecting Linux Git.

The April 2025 ISO update is out today for CachyOS, the Arch based Linux distribution known for its aggressive out-of-the-box performance on modern hardware...

Mesa's NVK Vulkan driver had been Vulkan 1.4 conformant for Turing and newer GPUs, but now with Mesa 25.2-devel it's Vulkan 1.4 conformant going back to Maxwell GPUs. This change is exported to be back-ported to the upcoming Mesa 25.1 release as well for those interested in using this open-source NVIDIA Vulkan driver...

For those that have been wondering about the Linux support and more details around the Ryzen AI Max 300 "Strix Halo" APUs on Linux, here's a brief update...

Today's Linux benchmarking at Phoronix is looking at how the Intel Core Ultra 9 285K performance has evolved since its launch last October. Taking the launch-day benchmarks from October with the same hardware, we are revisiting the Intel Arrow Lake performance under Linux today using the newest system BIOS and the newly-released Ubuntu 25.04 for seeing how the performance has evolved roughly over the past half-year.

One of the early features being merged for what will become the GCC 16 compiler following last week's GCC 15 code branching is CPU targeting support for the XuanTie RISC-V processors...