Svobodný software

Neil Trevett, the president of the Khronos Group, presented at the X.Org Developers' Conference for the first time. During his presentation on Wednesday he covered their usual initiatives, how Khronos engages in open-source and open standards, and related bits -- plus a few interesting ones...

Not particularly surprising considering Fedora tends to always ship with a bleeding-edge toolchain, but for their Fedora 32 release to kick off 2020 they are planning for GNU Binutils 2.33...

One of the interesting reveals so far from this week's X.Org Developers' Conference in Montreal is that Intel has been developing a new back-end compiler for their OpenGL/Vulkan Linux drivers based upon their experiences so far with their NIR support and the lessons learned over the past number of years...

[6 minut čtení] Většinou se o Evropské komisi píše v souvislostech s nějakými regulativy nebo pokutami, dotacemi nebo zasahováním do volného trhu. Dnes bychom se ale rádi podívali na to, jak Evropa pracuje s open source. Když se řekne open source a veřejná správa, většina z nás si vybaví především drobné případy, kdy nějaké město přejde z Windows na Linux nebo se otevřený kancelářský balík nasadí v nějaké oblasti ve školách. V posledních letech se ale téma otevřenosti stává součástí širší debaty o tom, jak by měla vypadat informační politika států (unie) ve vztahu k open source řešením, ať již v podobě softwaru nebo dat.

Intel's open-source crew has had a busy week with their first public OpenVKL release, OSPray 2 hitting alpha, and now the release of MKL-DNN where they are also re-branding it as the Deep Neural Network Library (DNNL)...

For those wondering about the current performance of desktop Linux distributions against Microsoft Windows 10 with the latest updates as we embark upon fall update season, here is a look at the performance of eight different Linux distributions compared to Windows 10. While a larger set of cross-platform tests are currently being worked on, for this article we are focusing on different "creator" workloads from video/audio encoding, render workloads, and related software prior to the larger comparison in the next week or two.

The Blender 2.81 release cycle has entered its "bcon2" development phase of development with the focus shifting to bug fixing and stabilizing new features with now being past the initial window of merging in the big ticket items...

As was anticipated, PostgreSQL 12.0 is now officially available...

If you are a user of AMD Radeon RX 5700 "Navi" graphics and don't mind riding Mesa Git, the latest 19.3-devel code as of yesterday has several more GFX10 fixes/improvements...

Flatpak 1.5 is the newest pre-release for this Linux app sandboxing and distribution tech...

The lossy ASTC texture compression algorithm has been widely adopted in recent years with it being official extensions to both OpenGL and OpenGL ES. While it may not be as messy as the S3TC patent situation of the past, it turns out Arm's license on Adaptive Scalable Texture Compression actually is quite restrictive outside of the context of Khronos' APIs...

While initially queued as a work-in-progress feature for Linux 5.5, AMD has now submitted a batch of "fixes" to the current Linux 5.4 cycle that include enabling of the LRU bulk moves performance-boosting functionality...

Igalia is working on supporting OpenGL ES' GLSL marking of variables as "mediump" when the precision involving those variables can be lowered to half-float 16-bit registers. That in turn can help with performance when honoring that precision marking, which to date Mesa has ignored...

One of the contributions Google is working on for the upstream Linux kernel is a new "sanitizer". Over the years Google has worked on AddressSanitizer for finding memory corruption bugs, UndefinedBehaviorSanitizer for undefined behavior within code, and other sanitizers. The Linux kernel has been exposed to this as well as other open-source projects while their newest sanitizer is KCSAN and focused as a Kernel Concurrency Sanitizer...

Here is our recap of the most popular content on Phoronix for Q3. This is also the first time any one vendor has nearly dominated the charts thanks to multiple successful product launches and growing embrace for Linux/open-source...

[35 minut čtení] Dnes si vysvětlíme, jak je možné z Go volat funkce vytvořené v jazyku C. Jedná se o relativně komplikovanou problematiku, protože je například nutné korektně uvolňovat paměť, provádět přetypování proměnných atd. 1. Kooperace mezi kódem psaným v Go a C: cgo

[3 minuty čtení] IQRF je bezdrátová technologie, která se často využívá v oblastech, které jsou pro jiné bezdrátové technologie problematické z hlediska rušení, umístění nebo komplexnosti. Pro lepší porozumění toho, proč v těchto oblastech IQRF funguje, se podívejme zblízka na proces směrování v síti IQRF a také na příkaz FRC – Fast Response Command.

The Linux kernel will begin doing a basic sanity check of x86_64 CPUs with the RdRand instruction to see if it's at least returning "random looking" data otherwise warn the user at boot time. This stems from a recent issue where AMD's RdRand behavior with some hardware (particularly, buggy motherboards) could have borked RdRand issues...

Samba 4.11 was just released a few weeks back with big scalability improvements, but looking ahead to Samba 4.12 will be some big performance improvements for those leveraging encryption...

Given the recent AMD "ABBA" Ryzen 3000 boost fix, the upcoming release of Ubuntu 19.10 powered by Linux 5.3, here is a fresh round of AMD Ryzen 9 3900X vs. Intel Core i9 9900K benchmarks in a side-by-side matchup . It's just not any comparison but our largest i9-9900K vs. 3900X comparison ever: 112 gaming benchmarks and 321 system/CPU benchmarks carried out for our most extensive look yet at how these ~$500 CPUs are competing in this fierce race.