Category Archives: Stiri IT Externe

Ubuntu 19.04 Radeon Linux Gaming Performance: Popular Desktops Benchmarked, Wayland vs. X.Org


Leading up to the Ubuntu 19.04 release, several premium supporters requested fresh results for seeing the X.Org vs. Wayland performance overhead for gaming, how GNOME Shell vs. KDE Plasma is performing for current AMD Linux gaming, and related desktop comparison graphics/gaming metrics. Here are such benchmarks run from the Ubuntu 19.04 “Disco Dingo” while benchmarking GNOME Shell both with X.Org and Wayland, Xfce, MATE, Budgie, KDE Plasma, LXQt, and Openbox.

Using a Radeon RX Vega 64 graphics card with the stock Ubuntu 19.04 components were used for this desktop graphics/gaming benchmark comparison. Ubuntu 19.04 ships with the Linux 5.0 kernel, Mesa 19.0.2, and X.Org Server 1.20.4 as the most prominent components for this comparison. GNOME Shell 3.32.0, Xfce 4.12, MATE 1.20.4, KDE Plasma 5.15.4, Budgie, LXQt 0.14.1, and Openbox 3.6.1 are the prominent desktop versions to report. KDE Plasma with Wayland wasn’t tested since on this system I wasn’t able to successfully start the session when selecting the Wayland version of Plasma from the log-in manager. The Radeon RX Vega 64 graphics card was running from the common Core i9 9900K used by many of our graphics tests with the ASUS PRIME Z390-A motherboard, 16GB of RAM, Samsung 970 EVO 256GB NVMe SSD, and a 4K display.

Via the Phoronix Test Suite a range of gaming and other desktop graphics benchmarks were carried out under these different Ubuntu 19.04 desktop options. Here are those results. Additional Ubuntu 19.04 performance tests will be coming up on Phoronix soon.


At Least 27% Of Gentoo’s Portage Can Be Easily LTO Optimized For Better Performance


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GentooLTO is a configuration overlay for Gentoo’s overlay to make it easy to enable Link Time Optimizations (LTO) and other compiler optimizations for enabling better performance out of the Gentoo packages. GentooLTO appears to be inspired in part by the likes of Clear Linux who employ LTO and other compiler optimization techniques like AutoFDO for yielding better performance than what is conventionally shipped by Linux distributions. The GentooLTO developers and users have wrapped up their survey looking at how practical this overlay configuration is on the massive Portage collection.

The initial GentooLTO survey has been going on since last October and they have collected data from more than 30 users. The survey found that of the Gentoo Portage 18,765 packages as of writing, at least 5,146 of them are working with the GentooLTO configuration.

While they survey is user-driven and not systematically testing all available packages, at least from the current numbers they are looking at a minimum of 27% of Gentoo portage working nicely with link-time optimizations without any workarounds, but the total number of working packages is likely quite higher.

They survey did not look at the performance differences from LTO optimizations on these packages. Those interested in the results can find the survey data here. Those wanting to look more at the GentooLTO project itself can find it on GitHub.


Linux Mint Founder Calls for Better Developer S… » Linux Magazine


Linux Mint is among the most popular and seemingly most easy to use Linux distributions. The Ubuntu-based distribution has built its loyal user base and has been growing ever since. However, the founder of Linux Mint seems to be burning out.

In the latest blog post, Linux Mint founder Clement ‘Clem’ Lefebvre wrote that he didn’t enjoy the latest development cycle as two of the most talented developers have been away. The project couldn’t make the performance improvements it expected.

“Boosting performance in the Muffin window manager hasn’t been, and still isn’t, straight forward,” he wrote.

Some frustration also seems to stem from the new logo and website design, “Feedback on the new website and logo brought a huge amount of incertitude,” Lefebvre said.

It seems he is also sensing the developer community of Linux Mint is not as energized as it once used to be. “For a team to work, developers need to feel like heroes. They want the same things as users, they are users, they were “only” users to start with. At some stage they decide to get involved and they start investing time, efforts and emotions into improving our project. What they’re looking for the most is support and happiness. They need feedback and information to understand bugs or feature requests and when they’re done implementing something, they need to feel like heroes, they literally do, that’s part of the reason they’re here really,” said Lefebvre.

It’s not certain if Lefebvre is tired of the project or it’s a momentary frustration with some core team members not showing up and negative feedback on some changes.



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Mobile Video and 5G – A 2020 Vision | IT Infrastructure Advice, Discussion, Community


The Super Bowl winning leader of numerous NFL teams’ quote holds true for video use over 5G networks to date. U.S. operators are busy this year deploying networks that enable super-fast wireless technology that have the potential to change the way business and consumers uses mobile devices.

Many see 2020 as a primetime opportunity for delivery of video over 5G to mobile devices, what with huge far-flung viewing events including the presidential election here in the states and the 2020 Summer Olympics in Tokyo, for starters.

Envision smartphone owners folding open their devices to create an iPad-sized screen to view any of a myriad of streaming video content sources – and staying engaged longer in the absences of delays in streaming TV shows and movies that are commonplace with sub-5G wireless links today.

Potential Use Cases

Global carrier networking provider Ericsson has defined five key industries that could benefit from 5G usage. They are TV and media; manufacturing; healthcare; telecommunications; and transportation/infrastructure.

The TV and media industry is loaded with those looking for ways to get content to the wireless masses. At the Consumer Electronics Show in January, entertainment conglomerate Disney, whose family includes ABC, ESPN, Fox Entertainment, Lucasfilm, Marvel, and Pixar, announced a project to explore 5G media opportunities with Verizon.

Disney is testing 5G applications through its new StudioLab facility.

“We see 5G changing everything about how media is produced and consumed,” Disney Studios CTO Jamie Voris was quoted as saying.

Reality Check

At this early stage in 5G wireless evolution, there are plenty of IT executives that are interested skeptics. There’s already a mobile video ecosystem. Adding 5G technology to enable a new one sounds great, but some warn that unless the result is adding value to the mobile video, it’ll be a tough sell. Or worse, it will be a painful lesson learned with 3D TV. Also high on the must-have list is a high-quality viewing experience. Minus those two items, interested skeptics will be sideline sitters, not early implementors.

Think of the cycle as a game of leapfrog. As data delivery improves (it should, with super-fast 5G services), hardware needs to get better. And if 5G is everything it’s purported to be, it makes sense for sales of phones with foldable screens start to pick up. This would provide a larger viewing area for rich content.

Business case: When data delivery improves, operators and enterprises will need to construct a business case for 5G uses. Key questions to be answered include how operators will price super-fast 5G services? Will there be tiered and unlimited use plans and what will they cost? What of affordability?

Content: There’s plenty of content from the media and entertainment industries that could be live streamed to mobile 5G devices, with sports matches at the top of the list. On-demand content such as movies and TV shows could also find their way to mobile devices with super-fast 5G wireless connections.

4K Support: 4K is an increasingly popular format for content that offers a rich and more immersive viewing experience than HD content. The former specifies four times more pixels. 4K TVs have been available for years, with prices continuing to fall. The delivery of native 4K content to these and mobile devices requires a recommended 12Mbit/sec to 25Mbit/sec of bandwidth. That’s achievable for many homes with wired links (still leaving many out), but a deterrent to those with mobile devices using current wireless connections.

5G Devices: Bigger is often better here as viewing content on many smartphones is problematic thanks to smallish screens. This limits the average viewing times for mobile video. This could change if we see more and cheaper foldable smartphones like the Samsung Galaxy Fold – with its 7.3-inch screen -due out in April. The units carry a price tag of roughly $2,000, which will hamper sales, according to a recent report by Juniper Research. Competition could drive the price downward. The latest iPad has a 9.7-inch screen.

OTT services: Internet-streamed TV services stand to gain even more ground on traditional wired cable TV offerings, which is great news for current and prospective cord cutters. Why? Subscription TV services such as Netflix, Amazon, Hulu, Sling and DirecTV Now all want to expand their mobile video business, which has been limited by available wireless bandwidth.

Mobile gaming. Look for 5G service to forever change gaming by providing super-fast speeds needed that crush latency and delay still experienced in online gaming in the home.  5G should also be a game changer by expanding use to those with mobile devices who, because of speed constraints with current wireless networks, waited to get home to get in the game. Expect gamers to continue to prefer big- screen TV monitors, but also embrace the mobile option when away from home.

The Road Ahead

If the larger-screen mobile devices, using content delivered over 5G networks, provide a high-quality viewing experience for their owners and IT departments, the case for mobile video over these super-fast networks will be close to fulfilling the potential of the underlying cellular technology. That’s doing something.

 



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Black Hole Image Has an Open Source Connection » Linux Magazine


Last week the whole world was stunned by seeing what was unseen – a black hole. Scientists were able to create picture of a black hole named Messier 87 in the Virgo A galaxy. The black hole is more than 55 million light years away.

The first image of a black hole is the outcome of the Event Horizon Telescope (EHT) project, which created a virtual telescope as big as earth by networking 8 ground-based telescopes. The telescopes generated more than five petabyte of data. Collecting data was the first part of the puzzle. The team of scientists used various algorithms to fill gaps in this data to be able to generate an image of the black hole.

TFIR reports that the team of scientists used three imaging algorithm for image processing, and two of these were fully open source Python libraries – Sparselab and ehtim.

Sparselab is a Python Library for Interferometric Imaging using Sparse Modeling.

ehtim is a Python module for simulating and manipulating VLBI data and producing images with regularized maximum likelihood methods.

The source code of these libraries is published on GitHub under GNU GPLv3 licenses.



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