Svobodný software

The project that started off as Libre-RISC-V with aims to be a Vulkan accelerator but then decided on the OpenPOWER ISA rather than RISC-V is still moving ahead under the "Libre-SOC" branding...

You may recall from earlier this year that the X.Org/FreeDesktop.org cloud costs were growing out of control primarily due to their continuous integration setup. They were seeking sponsorships to help out with these costs but ultimately they've attracted new sponsors while also better configuring/optimizing their CI configuration in order to get those costs back at more manageable levels...

Linux 5.10 is set to support a new feature of AMD Secure Memory Encryption (SME) as part of the Secure Encrypted Virtualization (SEV)...

Going on for more than four years now has been creating a new /dev/random implementation and this Friday marks the 35th revision to this big set of patches that aim for better performance and security...

Etnaviv as the open-source, reverse-engineered OpenGL graphics driver for Vivante graphics IP now has support for an on-disk shader cache...

[7 minut čtení] Populární certifikační autorita Let's Encrypt během nedávného ceremoniálu vytvořila šest nových certifikátů a připravuje se na plnou podporu ECDSA. Nabídne tak menší certifikáty a rychlejší šifrování. Ve čtvrtek 3. září vytvořila certifikační autorita Let’s Encrypt šest nových certifikátů: jeden kořenový, čtyři mezilehlé a jeden křížově podepsaný. Tento krok je součástí většího procesu, který má za úkol zlepšit bezpečnost na webu, rozšířit podporu algoritmu ECDSA a zmenšit velikost certifikátů.

Back in May the Taiwins Wayland compositor was announced as a compact compositor based on Libweston while Thursday marked its second release...

Building off the V3DV driver talk at XDC2020 about this open-source Vulkan driver for the Raspberry Pi 4 driver, the Igalia developers responsible for this creation have laid out their plans on getting this driver upstream within Mesa...

[17 minut čtení] Článek představuje třetí pokračování této série a snaží se popsat praktické zkušenosti získané po téměř dvou letech snažení. Věřím, že mé zkušenosti mohou většinu odborníků pobavit a začátečníky uchránit od stejných chyb. Když jsem před rokem a půl psal první článek první série, nazval jsem jej „Co to znamená „pořádně“ otestovat webovou aplikaci?“. Redakce mi tehdy doporučovala změnit tento název na „Jak pořádně otestovat webovou aplikaci“. Na návrh jsem nepřistoupil s odůvodněním, že jsem tehdy neměl dostatek zkušeností na to, abych mohl takový titulek s čistým svědomím použít. Článek tedy vyšel pod původním názvem.

Following the Linux 5.0 to 5.9 kernel benchmarks on AMD EPYC and it showing the in-development Linux 5.9 kernel regressing in some workloads, bisecting that issue, and that bringing up the issue of the performance regression over page lock fairness a solution for Linux 5.9 has now landed.

Google engineer Steven Perron has laid out their proposal for an XGL cache creator tool for AMD's official Vulkan Linux driver, AMDVLK...

If GNOME 3.38 isn't your cup of tea, you may be interested in trying out the beta of the forthcoming KDE Plasma 5.20 desktop...

NVIDIA has once again managed to provide launch-day Linux driver support for their next-generation graphics processors. Today the NVIDIA 455.23.04 beta driver is shipping for Linux support with the GeForce RTX 3080 and RTX 3090 "Ampere" graphics cards...

Valve developer Timur Kristóf who has been spending the past year working on the AMD Compiler "ACO" back-end for the Mesa Radeon Vulkan driver "RADV" as well as beginning to port this shader compiler back-end to RadeonSI Gallium3D. This alternative to the AMDGPU LLVM back-end has made incredible progress over the past year -- enough so that it's been the default for Mesa's RADV driver. During XDC2020 Day 2, Timur provided an update on ACO...

Intel has debuted a new version of HAXM, its Hardware-Accelerated Execution Manager that serves as an accelerator for the Android Emulator and QEMU via Intel VT enabled CPUs...

Years ago if saying Microsoft would have multiple developers presenting at the annual X.Org Developers' Conference (XDC) as well as being a sponsor, you'd probably raise some laughs. But this year for XDC2020 Gdansk (albeit virtual due to COVID-19), Microsoft engineers gave not just one talk but three on the opening day...

Mesa 20.2 (or 20.2-RC5) didn't debut last week as intended, but for the interim the Mesa 20.1.x release cycle brought 20.1.8 on Wednesday and now it's been extended to having at least a ninth point release to allow more time until not only Mesa 20.2.0 to ship but Mesa 20.2.1 alignment...

Following Wednesday's release of GNOME 3.38 was the surprising news of GNOME 40 being the next version as well as a new initiative to improve GNOME extensions...

AMD previously confirmed it would be supporting real-time ray-tracing with their next-generation GPUs while now one month out from the Radeon RX 6000 series debut are the first signs of the open-source driver work around GPU ray-tracing...

[23 minut čtení] V úterním článku jsme si popsali zajímavý a v našich končinách poněkud přehlížený osmibitový mikroprocesor RCA 1802. Dnes se budeme zabývat mikropočítači, které na bázi tohoto čipu vznikly, především mikropočítačem pojmenovaným COSMAC ELF. 1. Mikropočítače založené na čipu RCA 1802