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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

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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

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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

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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

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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

Tizonia – powerful open source cloud music player for the Linux terminal

The Linux platform has matured into an excellent way of listening to streaming music services. There are clients available for most of the popular music streaming services. But what if you want a single app that covers the very popular ones without straying away from the Linux terminal. Step forward Tizonia. Tizonia offers access to some excellent streaming music services — all from the command line. The software supports popular services such as YouTube, Spotify, Google Play Music, SoundCloud, Chromecast, and more. Tizonia is innovative software. It doesn’t use FFmpeg, libav, gstreamer or libvlc for playback. Instead, the software’s multimedia framework is based on OpenMAX IL 1.2. OpenMAX (Open Media Acceleration) is a non-proprietary and royalty-free cross-platform set of C-language programming interfaces. It provides abstractions for routines that are especially useful for processing of audio, video, and still images. Tizonia is C/C++ software which integrates online services with Python connectors/proxies. This means it should be fairly easy to integrate new services, assuming a Python-based API is accessible. Read more

What Is AppImage in Linux?

On a Linux distro, you should always install new software with the aid of your package manager when possible. It keeps things clean, and all files are tracked by the manager and can be easily removed later. This also helps avoid potential trouble when you later upgrade your distribution. But since your distribution might not have the software you need, or some might be too old, you sometimes have to resort to alternatives. Out of all these alternatives, though, only choose to download third party “.deb” or “.rpm” files as a last resort. What Is AppImage? On Windows, you can download a ZIP archive, extract the contents to a directory, and run the application within, without having to install it. This is called a portable app because you can copy it to a USB stick and then run it on any computer that uses the Windows operating system. An AppImage, though technically constructed in a different way, works the same from the user’s perspective. You download one file and run the program on your Linux operating system without having to install anything. Furthermore, you can also copy this on a USB stick, and it will run on Debian, Ubuntu, Arch Linux, openSUSE, Fedora, or any other Linux distribution. Read more

5 Business Tools for Start-ups Running on Linux in 2019

There is no denying that Linux offers more flexibility and security than Microsoft Windows. However, if you use a Linux system for your business, then there is no need to compromise on productivity. The following are some of the most amazing business tools for Linux OS that you can use to enhance business operations and reduce costs: Read more

D9VK 0.13f

  • D9VK for translating D3D9 to Vulkan for Wine has another new version out, 0.13f - "Hypnofrog"

    Developer Joshua Ashton is certainly keeping busy, with another brand new release of D9VK now available. As a reminder: D9VK is based on DXVK. While DXVK focuses on translating D3D11 and D3D10 into Vulkan for use in Wine, D9VK focuses on D3D9. Eventually, they should hopefully merge into one awesome project. Version 0.13f - "Hypnofrog" is coming in less than a week after the last release, yet still manages to sound interesting given that's not a lot of time. There's some "New General API Stuff", "New Fixed Function Support", "New Shader Support" and bug fixes for "D3D9" and "DXSO (Shader Fixes)". Most of the changelog is highly technical language for those of you who understand graphics APIs. The main takeaway, as always, is that each new release should bring more compatibility with Windows games in Wine that use DirectX 9. Since D9VK uses Vulkan, it should perform better than vanilla Wine.

  • D9VK 0.13f Brings Extra Features For Direct3D 9 Over Vulkan

    It was just earlier this month that D9VK 0.13 was released with new features while now a "0.13f" Hypnofrog release is available in pre-release form.