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December 2018

5 Best Android Emulators for Linux

Filed under
OS
Android
Linux

The emulator is software on a computer system that behaves like another computer system. When I am talking about Android Emulators for Linux, it means a program for Linux that runs like the Android environment. It is used by developers and testers to test their apps for Android using the Linux system. You can run Android apps and games on your Linux system. Emulators are also used by gamers to run Android games on their system. I have already listed best Android Emulators for PC but that basically included Android Emulators for Windows and Mac. So, I decided to make a dedicated list of Android Emulators for Linux.

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Puppy Linux Tahr 6.0.5 review: Tahrpup 6.0.5 Features and Advantages

Filed under
Reviews

By now you have got the point that instead of the small size Puppy Linux provides lots of tools for customizing the desktop. Options including the wallpaper changer, theme changer, theme maker, icon changer, etc. there are many more to explore.

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From Nexus to Android One: a brief history of purist Android phones

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Android

Android has been around for so long, and in so many forms, that the open-source operating system has evolved on multiple fronts thanks to the frantic competition among the many vendors using the platform.

For all the bells and whistles of Samsung, LG and HTC, there’s always been a market for something a little purer – a 'stock' OS that strips away all the third-party bloat for an experience that’s as close to Google’s vision of Android as it’s possible to get.

From the evolution of Google's Nexus smartphone range (and their successors, the improving Google Pixel phones) to the simultaneous innovation of Android One, pure Android devices have carved out more than one niche for themselves. It’s been quite the journey, and the story isn’t over yet...

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Programming: Learning and Python

Filed under
Development

KDE: Akademy, BSD, Krita and Lays Rodrigues

Filed under
KDE
  • Me, at Akademy 2018 - Winds of Change - FOSS in India Recap (late post

    Akademy is an annual conference organized by the KDE Community. It’s the place where contributors of all kinds from past and present meet, showcase their work and discuss things that shape the future of the KDE Software. This year's Akademy was held in the TU Wien, in the beautiful and historic city of Vienna, Austria.

    First of all, I'd like to apologize for being late on this post as just after reaching home, I had a minor motorcycle accident, and which was followed shortly by prolonged illness.

    I've been a KDE guy since the beginning of my technology career as an open source evangelist, entrepreneur, and developer. This year, I got the opportunity to showcase my work in front of the great people I've always admired.

    [...]

    The current state of India in regards to Free and Open Source Software is somewhat optimistic, with more and more states of India bringing in IT policies which gives priority to free and open source solutions.

  • Modern KDE on FreeBSD

    New stuff in the official FreeBSD repositories! The X11 team has landed a newer version of libinput, opening up the way for KDE Plasma 5.14 in ports. That’s a pretty big update and it may frighten people with a new wallpaper.

    What this means is that the graphical stack is once again on-par with what Plasma upstream expects, and we can get back to chasing releases as soon as they happen, rather than gnashing our teeth at missing dependencies. The KDE-FreeBSD CI servers are in the process of being upgraded to 12-STABLE, and we’re integrating with the new experimental CI systems as well. This means we are chasing sensibly-modern systems (13-CURRENT is out of scope).

  • KDE4 on FreeBSD, post-mortem

    The KDE-FreeBSD team has spent the past month or more, along with FreeBSD ports committers and maintainers who have other KDE4-related ports, in bringing things up-to-date with recent KDE-Frameworks-based releases, with hunting down alternatives, and with making the tough call that some things are just going away. Thanks to Rene for doing the portmgr commits to clean it up (r488762, r488763, r488764 and followups to remove KDE4-options from other ports) .

  • Interview with Phoenix

    What I love about Krita is that it doesn’t take up that much RAM compared to other softwares I have used. It makes it really easy to record speedpaints for YouTube.

  • [Krita] Statistics Are Fun!

    Collectively we removed 648,887 lines of code and added 996,142 lines of code. Of course… Lines of code and numbers of commits doesn’t say a whole lot. But we’ve currently got 580,268 lines of C++, 12,054 lines of Python code out of a total of 607,193 lines of code. There are 30 libraries, 151 plugins, 243 automated tests (of which 5 are failing).

  • New home page =D

    Using Vuetify framework, that is built above Vue.Js I was able to build a new landing page with information about me and the stuff that I do. On that page you will be able to find my projects, presentations and contact information. I’ve also added a page of Tips & Tricks with content that I think that has value.

Screenshots/Screencasts: Peppermint OS, Chakra Linux and AcademiX

Filed under
GNU
Linux

OPTPOLINES - Formerly Relpolines, Lower Overhead To Retpolines For Spectre Mitigation

Filed under
Linux
Security

It's been nearly one year to the day since the Spectre and Meltdown vulnerabilities were made public. While the security vulnerabilities were quickly buttoned up in the Linux space, kernel developers continue working to offset the performance overhead introduced by these mitigations. They made a lot of overhead reductions in 2018 while still there are some patch-sets pending still for bettering the experience. One of these patch-sets was known as "Relpolines" but now has been updated and morphed into what is being called Optpolines.

Relpolines were announced a few months ago by a VMware developer as having lower overhead than Retpolines -- the return trampolines introduced as part of the Spectre mitigations back in January. The dynamic indirect call promotion work by VMware has been working on pairing relative calls and trampolines to reduce the overall Retpoline overhead. VMware found with their original patches it could deliver a 10% performance improvement to the Nginx web server, +4% for Redis, and other minor performance improvements -- well, recovering previously lost performance.

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Also: The Linux Kernel In 2018 Summed Up: Spectre/Meltdown, CoC, Speck Fears, New Features

Open-Source / Linux Letdowns For 2018

Filed under
OSS

While 2018 was a grand year for open-source and Linux as we've been recapping all of the highlights in recent days on Phoronix, it wasn't without some shortcomings or areas that have yet to pan out... As we end 2018, for some interesting New Year's Eve discussions in the forums, here is a look at some of the biggest Linux/open-source letdowns of the year.

Here are what I personally consider to be some of the biggest letdowns of the year. Feel free to chime in with your own open-source letdowns in the forums.

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What Is Ubuntu? The Past and Present of the Ubuntu Linux Distro

Filed under
Ubuntu

Ubuntu is the most popular Linux distribution in the world. It may (or may not) be the best, but it is definitely the most popular. The distribution, or packaged “brand” of Linux, is developed by Canonical Ltd. for use on desktops, servers, and many other applications.

Ubuntu is also the most popular operating system in the cloud. It’s the operating system Google built its Android development tools around. Ubuntu was the first Linux distribution supported by Valve for Steam. When most people think of Linux, they’re probably thinking about Ubuntu.

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More in Tux Machines

Graphics and Games: DXVK, Overload and Songs of Syx

  • Lima Gallium3D Gets A Reworked Scheduler

    Landing this week in Mesa 19.2 for the Lima Gallium3D driver for Arm Mali 400/450 series hardware is a reworked GPIR regiaster scheduler. The change to their existing scheduler is that the scheduling is now done at value register allocation time and other improvements made in the process.

  • DXVK 1.3.1 Brings Logging Improvements, GPU Load Monitoring In The HUD

    Just one week after releasing DXVK 1.3, lead developer Philip Rebohle has released DXVK 1.3.1 with a few more features plus a number of bug fixes -- including performance work. The two principal new features of DXVK 1.3.1 are logging improvements and GPU load monitoring support in the DXVK HUD. The GPU load monitoring are estimates based on Vulkan timing information within DXVK as opposed to using driver-specific queries; Philip acknowledges that the number may be inaccurate when CPU load is very high. Those wanting to try out that GPU load monitoring in the heads-up display can do so via the DXVK_HUD=gpuload environment variable.

  • The six-degree-of-freedom shooter "Overload" has a new Community Level Pack offering a fresh challenge

    Overload is possibly the best six-degree-of-freedom shooter I've played in the past few years, sadly it has been overlooked by a lot of gamers. It's limping on though, with a new Community Level Pack available for around £3.99. This includes nine single player levels, stitched together to form an entirely new mission. It includes progression, unlocks and a secret level. There's also twelve new challenge mode levels and online leaderboard support.

  • Songs of Syx, a city-builder with empire management, tactical battles and RPG elements

    Here's a fun recent discovery, Songs of Syx an in-development title from Swedish developer Jakob de Laval. It's a city-builder with empire management, tactical battles and rpg-elements and it's looking good. With an interesting pixel-art top-down view, Songs of Syx reminds me a little of Rise to Ruins, another great pixel-art builder. It's been in development since 2014, with an Early Access release due sometime in March next year with support for Linux, Mac and Windows.

Mutter 3.33.4

About mutter
============

Mutter is a window and compositing manager that displays and manages
your desktop via OpenGL. Mutter combines a sophisticated display
engine using the Clutter toolkit with solid window-management logic
inherited from the Metacity window manager.

While Mutter can be used stand-alone, it is primarily intended to be
used as the display core of a larger system such as GNOME Shell. For
this reason, Mutter is very extensible via plugins, which are used
both to add fancy visual effects and to rework the window management
behaviors to meet the needs of the environment.

News
====

* Discard page flip retries on hotplug [Jonas; !630]
* Add xdg-output v2 support [Olivier; #645]
* Restore DRM format fallbacks [Jonas; !662]
* Don't emit ::size-changed when only position changed [Daniel; !568]
* Expose workspace layout properties [Florian; !618]
* Don't use grab modifiers when shortcuts are inhibited [Olivier; #642]
* Fix stuttering due to unchanged power save mode notifications [Georges; !674]
* Add API to reorder workspaces [Adam; !670]
* Make picking a new focus window more reliable [Marco; !669]
* Defer actor allocation till shown [Carlos; !677]
* Try to use primary GPU for copy instead of glReadPixels [Pekka; !615]
* Unset pointer focus when the cursor is hidden [Jonas D.; !448]
* Fix modifier-drag on wayland subsurfaces [Robert; !604]
* Fix background corruption on Nvidia after resuming from suspend [Daniel; !600]
* Only grab the locate-pointer key when necessary [Olivier; !685, #647]
* Misc. bug fixes and cleanups [Florian, Jonas, Daniel, Robert, Olivier,
  Georges, Marco, Carlos, Emmanuele; !648, !650, !647, !656, !658, !637,
  !663, !660, !659, !665, !666, !668, !667, #667, !676, !678, #672, !680,
  !683, !688, !689, !687]

Contributors:
  Jonas Ådahl, Emmanuele Bassi, Adam Bieńkowski, Piotr Drąg, Jonas Dreßler,
  Olivier Fourdan, Carlos Garnacho, Robert Mader, Florian Müllner,
  Georges Basile Stavracas Neto, Pekka Paalanen, Marco Trevisan (Treviño),
  Daniel van Vugt

Translators:
  Fabio Tomat [fur], Kukuh Syafaat [id]
Read more Also: GNOME Shell + Mutter 3.33.4 Released

KDE Usability & Productivity: Week 80

Somehow we’ve gone through 80 weeks of progress reports for KDE’s Usability & Productivity initiative! Does that seem like a lot to you? Because it seems like a lot to me. Speaking of a lot, features are now pouring in for KDE’s Plasma 5.17 release, as well as Applications 19.08. Even more is lined up for Applications 19.12 too, which promises to be quite a release. Read more

Android Leftovers