Svobodný software

GCC 4.2.1 has been out since 2007 and while there have been many big updates to the GNU Compiler Collection over the past decade, that version remains somewhat common in the BSD land due to being the last version under the GPLv2 license. GCC 4.2.2 and newer switched over to GPLv3+ and that is why several BSDs have stuck to using GCC 4.2.1 or at least keeping it in their base repository. But now for FreeBSD 13, this old version of GCC is set to be retired with FreeBSD already being quite focused on LLVM Clang as its default compiler while also offering newer GCC versions via its package management system...

It's now been one week since the launch of AMD's EPYC Rome processors with up to 64 cores / 128 threads per socket and better IPC uplift compared to their previous-generation parts. Rome has outperformed Intel Xeon Scalable CPUs in their class while offering better power efficiency and way better performance-per-dollar. One of my favorite metrics has been how quickly the new EPYC 7742 2P can build the Linux kernel...

With TrueOS (formerly PC-BSD) no longer focused on delivering a quality BSD desktop as they once did, while there still are options out there for a desktop-focused BSD like MidnightBSD, for those wanting to use a vanilla FreeBSD installation can now setup a desktop easier using a new script...

The Apache Software Foundation has published their 2019 fiscal year report highlighting their more than 350 open-source projects/initiatives and this also marks their 20th anniversary...

Up until today the newest Linux kernel version supported by the official Reiser4 out-of-tree file-system driver patch was Linux 5.0, but that has now changed with the belated Linux 5.1 kernel support arriving as well as a separate patch for Linux 5.2 kernel support...

[1 minuta čtení] Sonda do světa otevřeného softwaru. Dnes budeme psát v terminálovém textovém editoru, pokusíme se rozchodit ne-nativní hry pomocí vrstev kompatibility, psát poznámky ve vimu a nakonec odešleme pár e-mailů. Terminálový editor pro vytváření a úpravu poznámek nebo psaní zdrojového kódu. Nabízí plnou podporu UTF-8, poradí si se zvýrazněním syntaxe, dokáže vyhodnocovat regulární výrazy pro vyhledávání a nahrazování textu, využívá také projekty třetích stran pro zpříjemnění práce a rozšíření vlastností (ctags, less, fzf, tree, grep, perl). Vlastní nápady lze do editoru integrovat pomocí Lua skriptů.

With the Raspberry Pi 4, a passive heatsink is an absolute minimum for running this new ARM SBC unless you want to deal with potentially drastic performance limitations based upon your operating conditions. However, if you will be enduring the Raspberry Pi 4 with significant load for any measurable length of time, an active cooler is almost warranted or otherwise a very capable passive cooler. In this article we're looking at the Raspberry Pi 4 performance with a Fan SHIM as an active fan designed for running on the Raspberry Pi off the GPIO pins as well as the FLIRC as a metal case that passively cools the device.

NVIDIA this morning introduced their 435 Linux driver series currently in beta form with the release of the 435.17 Linux build. With this new driver comes finally the best PRIME/multi-GPU support they have presented to date...

The Khronos Group has posted their material from the SIGGRAPH 2019 graphics conference and includes some interesting updates on Vulkan and their ongoing efforts...

NVIDIA engineers continue to be among those in the Vulkan technical sub-group working to advance machine learning for this API...

Similar to the recent upstream Linux kernel discussions over the poor Linux desktop experience when in memory pressure situations particularly with systems having limited amounts of RAM, Fedora developers are discussing ways to improve this experience as well...

Knut Omang of Oracle is working on integrating the Kernel Test Framework into the Linux kernel source tree/repository...

The Canonical team led by Alan Griffiths for maintaining the Mir display server with Wayland support today rolled out Mir version 1.4...

Being evaluated for Qt 5.14 is shipping Qt PDF that allows PDF documents to be rendered/viewed inside QWidget-based applications...

Na novou verzi Xfce jsme si museli počkat více než 4 roky, což je historicky největší rozestup mezi verzemi Xfce, ale přesto jsme se dočkali. Xfce 4.14 vyšlo včera se všemi novinkami ve stabilní verzi.

Queued now for Linux 5.3 and also marked for back-porting to existing kernel stable series is a fix to address distorted and crackling analog audio input that has affected AMD systems for at least the past two years with certain Realtek audio codecs...

At $39 to $66 USD depending upon model, the ROCK Pi 4 is evolving to offer nice open-source support down to the Arm Mali graphics thanks to the Panfrost Mesa driver and also works nicely with Wayland...

NetBSD sa pripravuje na vydanie verzie 9.0, DragonFlyBSD chystá ďalšiu aktualizáciu ovládačov grafických kariet a FreeBSD 11.3 prináša užívateľom opravy spolu s novými verziami softvérových balíčkov.

Last week was the Intel Gallium driver one line patch to boost performance by 1%. Today's code churn within Mesa for Intel's open-source Linux graphics drivers were larger but also with a more profound performance impact with some workloads now being faster by around 20%. Making this more exciting is that today's round of driver optimizations apply to the very common and mature "Gen 9" graphics hardware...

[40 minut čtení] V dnešní části seriálu o světě lispovských programovacích jazyků si ukážeme, jakým způsobem se v jazyku Kawa pracuje s vektory a maticemi. Tato velmi důležitá oblast informatiky, která je někdy nazývána array programming, se neustále rozvíjí, což zasáhlo i jazyky postavené na LISPu (Racket, Kawa, Clojure). 1. Array programming a specializované programovací jazyky určené pro zpracování matic