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Ubuntu 20.04 LTS ponechá Python 2 v archíve balíčkov

LinuxEXPRES - 1 hodina 40 min zpět

Vývojári zo spoločnosti Canonical sa naďalej usilujú o odstránenie závislosti softvérových balíčkov na Pythone 2 v prichádzajúcom vydaní distribúcie Ubuntu 20.04 LTS.

Intel KVM Virtualization Hit By Vulnerability Over Unfinished Code

Phoronix - 3 hodiny 36 min zpět
At least not another hardware vulnerability, but CVE-2020-2732 appears to stem from unfinished code within the Intel VMX code for the Linux kernel's Kernel-based Virtual Machine (KVM) support...

GNOME On Wayland Screencasting Is About To Be A Heck Of A Lot More Efficient

Phoronix - 5 hodin 10 min zpět
Pending GNOME Mutter changes in conjunction with the new PipeWire 0.3 will offer a big improvement in making use of GNOME's screencasting support from Wayland sessions...

Poslední volný bit IP hlavičky: jak signalizovat zahlcenou linku

Root.cz - 6 hodin 39 min zpět
[5 minut čtení] Vlastně to není ani bit, ale půlbit o který se teď „bojuje“. O vyčerpání adresního prostoru IPv4 se popsaly hory disků, o tom, že i dnes se rozhoduje o budoucnosti internetu, díky jednomu bitu v IP hlavičce se ale obvykle nepíše. O co tedy jde? Začněme trochu zeširoka a podívejme se pod lupou na jeden aspekt provozu sítí, které snad všichni denně používají. Pokud jste s fungováním TCP/IP obeznámeni do detailu, jistě prominete nepřesnosti v zájmu srozumitelného podání tématu.

Serializace a deserializace datových struktur v programovacím jazyce Go (2.část)

Root.cz - 6 hodin 40 min zpět
[56 minut čtení] Popisem problematiky serializace datových struktur se budeme zabývat i dnes. Mj. si ukážeme, jakým způsobem lze BSON zapsaný v Go přečíst v Pythonu a jakou katastrofou mohou být při serializaci grafy obsahující cyklus. 1. Serializace a deserializace datových struktur v programovacím jazyce Go (2.část)

Problémy optimalizace SQL dotazů a jejich teoretická řešení [blog]

Root.cz - 6 hodin 40 min zpět
SQL dotaz definuje výsledek – nikoliv způsob, jak se k žádanému výsledku dostat. Úkolem plánovače dotazů je převod logických operací např. čtení tabulky s filtrem na fyzické operace. V tomto případě na sekvenční čtení nebo čtení indexem.

GIMP 2.10.18 Released With Many Improvements Before GIMP 3.0

Phoronix - 24. Únor 2020 - 23:23
While GIMP 3.0 remains elusive as the long overdue GTK3 port of this leading open-source image manipulation program, the GIMP 2.10 stable series continues seeing a lot of decent improvements in their subsequent point releases. GIMP 2.10.18 is out today following a botched GIMP 2.10.16 release...

The Current RADV+ACO Mesa Driver Performance For February 2020

Phoronix - 24. Únor 2020 - 21:52
As it's been a few weeks since last running a Mesa open-source driver comparison on AMD Radeon graphics hardware, here are some fresh Mesa 20.1-devel benchmarks just a few weeks so far after the Mesa 20.0 branching. These latest Mesa 20.1-devel benchmarks were also run a second time when enabling the RADV ACO shader compiler back-end that's been a focus by Valve developers in enhancing the Linux gaming experience. These results are compared to Mesa 19.2.8 as a baseline for the open-source driver support offered out-of-the-box by Ubuntu 19.10.

Arch Linux Announces New Project Leader

Phoronix - 24. Únor 2020 - 18:15
Aaron Griffin is stepping down as the Arch Linux Project Leader, who has led the distribution since 2007 where under his tenure Arch Linux boomed in popularity. With him stepping away due to minimal time to invest in the project, a process for selecting a new leader has formed...

VC4 DRM Driver Gets Patched For BCM2711 / Raspberry Pi 4 Support

Phoronix - 24. Únor 2020 - 17:54
While the Linux 5.5 kernel landed Broadcom BCM2711 SoC and Raspberry Pi 4 enablement, one of the loose ends has been getting the open-source "VC4" DRM driver wired up for the display hardware on this latest Raspberry Pi. Patches are now pending for VC4 DRM to provide that display support and could potentially see it mainlined for Linux 5.7...

One Of Clear Linux's Kernel Patches To Help With Boot Time Proposed For Upstreaming

Phoronix - 24. Únor 2020 - 16:31
Besides Clear Linux delivering often leading x86_64 Linux performance at run-time, when it comes to boot performance it has also been at the forefront -- in some configurations, can boot in 300 ms. Intel has invested significantly in ensuring Clear Linux boots as fast as possible for when running in the cloud or on containers in order to respond to increased demand as quickly as possible as well as for use-cases like Clear Linux within automobiles where they need to get automobile cameras active within two seconds of power on. One of their many kernel patches could be on its way to the mainline kernel...

Intel Launches Cascade Lake Refresh Xeon CPUs With Better Performance-Per-Dollar

Phoronix - 24. Únor 2020 - 15:30
Intel today formally announced their "Cascade Lake Refresh" Xeon processors with higher clock speeds in some cases but also more aggressive pricing to go up against the AMD EPYC 7002 series...

Canonical's Daniel Van Vugt Continues Squeezing More Performance Out Of GNOME 3.36

Phoronix - 24. Únor 2020 - 15:22
Canonical's Daniel Van Vugt continues focusing on GNOME performance optimizations and this past week still managed to squeeze another optimization out of the near-final GNOME 3.36...

27th Time The Charm? Intel SGX Enclaves Support For Linux Revved Again

Phoronix - 24. Únor 2020 - 12:47
For four years we have been seeing Intel Secure Guard Extensions (SGX) bring-up for the Linux kernel and that work continues with the Intel SGX Enclaves support now having been sent out for review twenty-seven times as it tries to work its way towards the mainline Linux kernel...

X.Org Server Lands Fixes For XWayland Full-Screen Support

Phoronix - 24. Únor 2020 - 12:26
There still is no sign of the long overdue X.Org Server 1.21 but the changes for it continue to build up particularly on the XWayland front...

PCI Express 6.0 Reaches Version 0.5 Ahead Of Finalization Next Year

Phoronix - 24. Únor 2020 - 12:16
Following the PCI Express 6.0 announcement from last summer that called for 64 GT/s transfer rates, version 0.5 of the PCIe 6.0 specification is now out for evaluation...

PulseAudio 14 Is Releasing Soon With Better USB Gaming Headset Support

Phoronix - 24. Únor 2020 - 12:04
In addition to PipeWire 0.3 having shipped last week, also making it out a few days prior was a development snapshot in the road to PulseAudio 14.0...

Veřejná správa 02/2020: nástroj pro přípravu legislativy, podpora pro Bareos, migrace na Linux v Koreji

LinuxEXPRES - 24. Únor 2020 - 11:00

Španělsko využívá nástroj LEOS pro přípravu legislativních návrhů. Evropské veřejné služby podporují zálohovací řešení Bareos. Jižní Korea zkoumá možnost migrace na Linux. 

MX Linux predstavuje novú edíciu

LinuxEXPRES - 24. Únor 2020 - 5:00

Distribúcia MX Linux dostala aktualizáciu a spolu s jej vydaním predstavuje svoju novú edíciu určenú pre užívateľov s novým hardvérom pod názvom MX Linux Advanced Hardware Support.

Linux 5.6-rc3 Released As A "Fairly Normal" Kernel

Phoronix - 24. Únor 2020 - 2:45
Linus Torvalds is out today with the Linux 5.6-rc3 kernel as the latest weekly release candidate for Linux 5.6 that will be releasing as stable approximately in one month's time...
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