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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

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

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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

Python Programming Leftovers

  • Cogito, Ergo Sumana: Futureproofing Your Python Tools

    The people who maintain Python and key Python platforms want to help you protect the code you write and depend on. [...] Publishing that package is a great way of making it so other people can run and deploy it, even within other parts of your organization. But -- who actually has the keys to the castle? Who can upload a new version, or delete a version that has a problem? You should probably make sure multiple people have either "owner" or "maintainer" privileges on the project on PyPI. And you should review your project security history display, which lists sensitive events (such as "file removed from release version 1.0.1") in your PyPI user account and your PyPI project. We just added this display, so you can look at things that have happened in your user account or project, and check for signs someone's stolen your credentials.

  • py3status v3.20 – EuroPython 2019 edition

    Shame on me to post this so long after it happened… Still, that’s a funny story to tell and a lot of thank you to give so let’s go!

  • Finding Python Developers for Your Startup

    Recently I stumble across a situation while I was helping out for one of the events for JuniorDev SG. There was not a lot of Python developers and some of my other developer's friend. Said that they hardly encounter any developer friends who are using Python for their work. It begins during a conversation, where one of the attendees for a JuniorDev SG event. Approached me to search for Python developers to work for their startup based in Singapore.

Geary 3.34 Debuts with Deeper GNOME Contacts Integration, Other Changes

The Geary email client has issued a brand new release, and in this post I tell you a bit about it. Geary 3.34.0 — you may recall that Geary switched to following GNOME numbering last year — is the latest update to this web-mail friendly mail tool, and there’s healthy dose of improvement on offer, as noted in the release notes. Among them is deeper integration with GNOME Contacts. Geary’s in-app contacts pop-over now supports adding and editing contacts stored in the GNOME Contacts app, and is able to auto-complete email addresses based on data from contacts too. Serial typo-makers like me will appreciate the spell checker now covering the mail composer’s subject line; while the addition of support for Outlook-specific email attachments (TNEF) will please those who regularly run in to issues on that front. Other changes in Geary 3.34.0 include “a substantial number” of server compatibility improvements, background syncing tweaks, and other bug fixes. Read more

today's howtos

Best free Linux firewalls of 2019: go beyond Iptables for desktops and servers

Linux distros will often come with at least a basic firewall bundled with it. Often this won't be active by default so will need to be activated. Additionally this will likely be the standard Iptables supplied, even though less experienced users may struggle with it. UFW - Uncomplicated Firewall is also bundled with some distros, and aims to make the process simpler. However, there are distros and applications out there that can cater for the more advanced user and the less experienced one, making it easier to setup and configure a firewall that works for your needs. Some, like ClearOS build it directly into the operating system as part of its security focus, but most other options would be applications that aim to block rogue IPs, monitor ports, and prevent otherwise prevent bad packets from interfering with your machine. For most home users there are few actual settings that need to be customized, so simple apps can be popular, but for those looking to manage their machine as a server, additional controls and advanced command options will tend to be the more welcome. Read more