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Glibc-HWCAPS To Help With AMD Zen Optimizations, Other Per-CPU Performance Bits

Phoronix - 48 min 51 sek zpět
Experimental patches under discussion for the GNU C Library (glibc) would make it easier to dynamically load optimized libraries (shared objects) on systems depending upon the CPU in use and its hardware capabilities. This glibc-hwcaps work stems from the desired work on being able to better leverage Linux performance optimizations on AMD Zen-based systems but the hardware capabilities patches themselves can help any CPU microarchitecture family in more easily shipping optimized support...

Better Mouse Reporting For The Linux Virtual Terminal Is Being Worked On

Phoronix - 4 hodiny 46 min zpět
The mouse reporting functionality offered by the Linux VT console is rather basic and seemingly seldom used by text-based, mouse-aware programs. However, a series of patches was sent out this week for improving the implementation to provide for more xterm-like mouse reporting...

Tasmota na spínači Sonoff: otvorený firmvér pre IoT

Root.cz - 10 hodin 48 min zpět
[8 minut čtení] Dnes sa oboznámime so spínačom Sonoff Basic založenom na čipe ESP8266, firmvérom Tasmota a pridám informácie o tom, čo si máte objednať, aby ste si nabudúce mohli do spínača nahrať nový firmvér. V prvej časti miniseriálu sa oboznámime s otvoreným firmvérom Tasmota, ktorý bol pôvodne vyvinutý práve pre spínače Sonoff, ale čoskoro sa rozšírila podpora aj na ďalšie zariadenia so známym čipom (tiež SoC, System on Chip) ESP8266. Je na ňom postavených mnoho zariadení využívaných v domácej automatizácii (spínačov, svetiel, snímačov apod.) od rôznych výrobcov a niekoľko typov vývojových dosák (napr. Wemos, NodeMCU, Adafruit HUZZAH, SparkFun ESP8266 Thing…).

Testování webových aplikací s REST API z Pythonu

Root.cz - 10 hodin 48 min zpět
[45 minut čtení] Důležitým typem testů jsou testy aplikačního programového rozhraní, dnes typicky (ale nejenom) REST API. Tyto testy mohou být spouštěny samostatně (vůči jedné izolované komponentě), nebo mohou být součástí end-to-end testů. 1. Testování webových aplikací s REST API z Pythonu

Valve Working On A VKD3D Fork For Getting Direct3D 12 Advanced For Proton / Steam Play

Phoronix - 6. Červenec 2020 - 22:51
While upstream Wine developers continue working on VKD3D for providing a Direct3D 12 to Vulkan translation layer for Wine, a developer on Valve's Proton team has now forked it as Proton-VKD3D for focusing their efforts on getting the D3D12 support moved along for Proton that powers Steam Play...

The Document Foundation Clarifies LibreOffice 7.0's "Personal Edition" Branding

Phoronix - 6. Červenec 2020 - 22:05
Yes, it's true the LibreOffice builds in recent days -- including the new LibreOffice 7.0 RC1 -- have "Personal Edition" branding for the open-source builds. But given user concerns, The Document Foundation board has issued some clarifications to try to ease any immediate rumors, etc...

Seagate FireCuda 520 PCIe Gen4 NVMe SSD Linux Performance

Phoronix - 6. Červenec 2020 - 17:22
For those that have been considering the Seagate FireCuda 520 as a PCI Express 4.0 NVMe solid-state drive, here are some benchmarks under Ubuntu Linux with this ZP500GM3A002 drive.

LibreOffice 7.0 RC1 Is Out For Testing This Skia+Vulkan Open-Source Office Suite

Phoronix - 6. Červenec 2020 - 14:47
With just about one month to go until the official release, the first release candidate is out today of the LibreOffice 7.0 open-source, cross-platform office suite software...

H.266/VVC Standard Finalized With ~50% Lower Size Compared To H.265

Phoronix - 6. Červenec 2020 - 14:14
The Versatile Video Coding (VVC) standard is now firmed up as H.266 as the successor to H.265/HEVC...

LLVMpipe Now Exposes OpenGL 4.2 For GL On CPUs

Phoronix - 6. Červenec 2020 - 11:47
It was just a few days ago that the LLVMpipe OpenGL software rasterizer within Mesa finally achieved OpenGL 4.0 support while today it has crossed both OpenGL 4.1 and 4.2 milestones...

GCC Compiler Support Posted For Intel AMX

Phoronix - 6. Červenec 2020 - 11:40
Building upon Intel working on GNU toolchain support for AMX, the newly-detailed Advanced Matrix Extensions being introduced next year with "Sapphire Rapids" Xeon CPUs, the GCC compiler support has been sent out in patch form...

Linux 5.9 To Bring Arm Memory Tagging Extension Support

Phoronix - 6. Červenec 2020 - 5:04
The 64-bit ARM code building up for the Linux 5.9 cycle is set to mainline Memory Tagging Extension (MTE) support as another security improvement inbound...

Linux 5.8-rc4 Released Following A Calm Week

Phoronix - 6. Červenec 2020 - 1:49
While last Sunday Linus Torvalds was concerned over a big Linux 5.8-rc3 release, this Sunday he is reporting that Linux 5.8-rc4 is on the smaller side...

Postřehy z bezpečnosti: krádež platební karty skriptem v EXIF

Root.cz - 5. Červenec 2020 - 23:00
[5 minut čtení] Dnes se podíváme na infiltraci a exfiltraci obrázkem, několikrát se dotkneme tématu ransomwaru z různých úhlů, věnovat se budeme také zranitelnosti aplikace Apache Guacamole nebo přepínačů Cisco. Analytici společnosti Malwarebytes objevili v e-shopu běžícím na WordPressu s pluginem WooCommerce zajímavý způsob práce s platebními údaji zákazníků. Jedná se pravděpodobně o výsledek originálního tvůrčího přístupu skupiny, známé jako Magecart Group 9. Této skupině jsou připisovány i další skimmovací útoky na webových stránkách.

Monado OpenXR Runtime Now Supports Multi-Application Rendering / Overlays

Phoronix - 5. Červenec 2020 - 22:47
The Monado open-source OpenXR runtime has seen a lot of features added this year and the most recent is support for OpenXR's XR_EXTX_overlay extension to allow for multi-application / overlay rendering...

Reiser5 Pursuing Selective File Migration For Moving Hot Files To High Performance Disks

Phoronix - 5. Červenec 2020 - 14:43
Edward Shishkin continues pursuing development of new file-system functionality for Reiser5, the next-generation evolutionary advancement over the controversial Reiser4 file-system...

Frame-Buffer Compression Support For Vintage Intel i865 Graphics Revived

Phoronix - 5. Červenec 2020 - 14:31
Back in April I wrote about patches for enabling FBC on the Intel 865 chipset nearly two decades after that chipset first shipped. Those patches didn't yet hit the mainline Linux kernel but they were revived again this week...

DRM Scheduler Improvement, New Epoch Counter, Other DRM Work For Linux 5.9

Phoronix - 5. Červenec 2020 - 14:11
Following the drm-misc-next pull request to DRM-Next last week that exposes VRR ranges via DebugFS and other improvements, another round of DRM-Misc-Next material has now been sent in for queuing ahead of the Linux 5.9 cycle...

Arm Cortex-A77 Support Upstreamed Finally To LLVM Clang 11

Phoronix - 5. Červenec 2020 - 13:50
While the Arm Cortex-A77 was announced last year and already has been succeeded by the Cortex-A78 announcement, support for the A77 has finally been upstreamed to the LLVM Clang compiler...

GNU Binutils 2.35 Preparing For Release

Phoronix - 5. Červenec 2020 - 11:48
Binutils 2.35 was branched this weekend as this important component to the open-source Linux ecosystem...
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