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Accelerate Your Mobile Apps for Android On
The Developer Summit at ARM® TechCon™ 2013 Accelerate your Mobile Apps and Games for Android™ on ARM Matthew Du Puy! Software Engineer, ARM The Developer Summit at ARM® TechCon™ 2013 Presenter Matthew Du Puy! Software Engineer, ARM! ! Matthew Du Puy is a software engineer at ARM and is currently working to ensuring mobile app performance on the latest ARM technologies. Previously a self employed embedded systems software contractor working primarily on the Linux Kernel and a mountain climber.! ! Contact Details: ! Email: [email protected] Title: Accelerate Your Mobile Apps and Games for Android on ARM Overview: Learn to perform Android application and systems level analysis on Android apps and platforms using tools from Google, ARM, AT&T and others. Find bottlenecks in both SDK and NDK activities and learn different approaches to fixing those bottlenecks and better utilize platform technologies and APIs. Problem: This is not a desktop ▪ Mobile apps require special design considerations that aren’t always clear and tools to solve increasingly complex systems are limited! ▪ Animations and games drop frames! ▪ Networking, display, real time audio and video processing eat battery! ▪ App won’t fit in memory constraints Analysis ▪ Fortunately Google, ARM and many others are developing analysis tools and solutions to these problems! ▪ Is my app … ?! ▪ CPU/GPGPU bound! ▪ I/O or memory constrained! ▪ Power efficient! ▪ What can I do to fix it?# (short of buying everyone who runs my app# a Quad-core ARM® Cortex™-A15 processor # & ARM Mali™-T604 processor or Octo phone) In emerging markets, not everyone has access to the latest and greatest devices but they still want to game, shop, socialize and learn with their mobiles. -
S Q X W W X А V А
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EARMO: an Energy-Aware Refactoring Approach for Mobile Apps
IEEE TRANSACTIONS ON SOFTWARE ENGINEERING, VOL. X, NO. X, SEPTEMBER 2016 1 EARMO: An Energy-Aware Refactoring Approach for Mobile Apps Rodrigo Morales, Member, IEEE, Ruben´ Saborido, Member, IEEE, Foutse Khomh, Member, IEEE, Francisco Chicano, and Giuliano Antoniol, Senior Member, IEEE Abstract—The energy consumption of mobile apps is a trending topic and researchers are actively investigating the role of coding practices on energy consumption. Recent studies suggest that design choices can conflict with energy consumption. Therefore, it is important to take into account energy consumption when evolving the design of a mobile app. In this paper, we analyze the impact of eight type of anti-patterns on a testbed of 20 android apps extracted from F-Droid. We propose EARMO, a novel anti-pattern correction approach that accounts for energy consumption when refactoring mobile anti-patterns. We evaluate EARMO using three multiobjective search-based algorithms. The obtained results show that EARMO can generate refactoring recommendations in less than a minute, and remove a median of 84% of anti-patterns. Moreover, EARMO extended the battery life of a mobile phone by up to 29 minutes when running in isolation a refactored multimedia app with default settings (no WiFi, no location services, and minimum screen brightness). Finally, we conducted a qualitative study with developers of our studied apps, to assess the refactoring recommendations made by EARMO. Developers found 68% of refactorings suggested by EARMO to be very relevant. Index Terms—Software maintenance; Refactoring; Anti-patterns; Mobile apps; Energy consumption; Search-based Software Engineering F 1 INTRODUCTION URING the last five years, and with the exponential class, which is a large and complex class that centralizes D growth of the market of mobile apps [1], software most of the responsibilities of an app, while using the engineers have witnessed a radical change in the landscape rest of the classes merely as data holders. -
Aslinux Desktop
ASLinux Desktop La distribución Linux completa para escritorios ¿Qué es ASLinux? ASLinux es la línea de negocio de Activa Sistemas como fabricante de productos Linux. Se trata de una plataforma Linux resultante de la experiencia de años de trabajo en el diseño, desarrollo, implantación y distribución de productos y soluciones Linux de terceros. Existen en la actualidad varios centenares de distribuciones diferentes, dirigidas a diversos mercados, tipos de usuarios o propósitos. A pesar de tanta oferta, en la actualidad es difícil encontrar una opción que resuelva las necesidades de cualquier usuario hispanohablante. Por ello, Activa Sistemas se planteó como reto hace algunos años el desarrollo de su propia distribución Linux, esfuerzo culminado con la presentación del primer producto de la gama: ASLinux Desktop. ASLinux Desktop ASLinux Desktop es una distribución Linux dirigida a PCs de escritorio, ya sean estaciones de trabajo, puestos corporativos u ordenadores domésticos, y a usuarios con cualquier nivel de experiencia tanto con ordenadores como con Linux. Disponible para procesadores Intel y AMD de 32 bits, ASLinux Desktop ofrece un escritorio completo, estable e intuitivo que facilita el acceso a Linux y que incluye todas las posibilidades que cualquier usuario puede demandar: ofimática, Internet, multimedia, educación, ocio, etc, junto con los más completos sistemas de seguridad, como un cortafuegos personal, un analizador de virus de Windows y un filtro de correo basura. En definitiva, ASLinux Desktop combina la robustez y estabilidad de Linux, la potencia y versatilidad de Debian y la amigabilidad y usabilidad del escritorio gráfico KDE. Avda. Innovación, Edif. Convención, mod. 310 - 41020 - Sevilla – Tlf: 954076060 - Fax: 955155000 Email: [email protected] - Web: www.activasistemas.com Pag. -
Anti-Patterns and the Energy Efficiency of Android Applications
1 Anti-patterns and the energy efficiency of Android applications Rodrigo Morales, Member, IEEE, Ruben´ Saborido, Member, IEEE, Foutse Khomh, Member, IEEE, Francisco Chicano, Member, IEEE, and Giuliano Antoniol, Senior Member, IEEE Abstract—The boom in mobile apps has changed the traditional landscape of software development by introducing new challenges due to the limited resources of mobile devices, e.g., memory, CPU, network bandwidth and battery. The energy consumption of mobile apps is nowadays a hot topic and researchers are actively investigating the role of coding practices on energy efficiency. Recent studies suggest that design quality can conflict with energy efficiency. Therefore, it is important to take into account energy efficiency when evolving the design of a mobile app. The research community has proposed approaches to detect and remove anti-patterns (i.e., poor solutions to design and implementation problems) in software systems but, to the best of our knowledge, none of these approaches have included anti-patterns that are specific to mobile apps and–or considered the energy efficiency of apps. In this paper, we fill this gap in the literature by analyzing the impact of eight type of anti-patterns on a testbed of 59 android apps extracted from F-Droid. First, we (1) analyze the impact of anti-patterns in mobile apps with respect to energy efficiency; then (2) we study the impact of different types of anti-patterns on energy efficiency. We found that then energy consumption of apps containing anti-patterns and not (refactored apps) is statistically different. Moreover, we find that the impact of refactoring anti-patterns can be positive (7 type of anti-patterns) or negative (2 type of anti-patterns). -
What Good Is a Linux Client?
Preparing Today for Linux® Tomorrow What Good is a Linux Client? A Linux White Paper Preface Anyone who has followed the progress of Linux the past few years has noted the surprising gains that Linux has made in server operating system market share and “mindshare” against the entrenched opposition, notably Microsoft® Windows NT®, Novell Netware and various varieties of UNIX®. A complete Linux network, of course, would require Linux clients (networked PCs or terminals) as well. Therefore, an important question is, “Is Linux a viable desktop operating system for general business use?” or must we continue to be confined to the Windows world for our non-server needs? And what about laptop support, or a Small Office/Home Office (SOHO) user or home user, who does not need a network server? Is there a place for Linux in a stand-alone environment? These are some of the questions this paper addresses. I must confess that until recently I was merely a bystander watching with curiosity from the sidelines—without any real involvement— the progress Linux has made. So writing this paper not only gave me the excuse to join in on the action, but it also provides you with the perspective of a Linux “newbie” who is attempting to find the applications and utilities needed to create a working system. The conventional wisdom so far is that Linux is not “ready for prime time” as anything but a network operating system. We shall test this notion to see if I can find commercial, shareware and/or freeware programs for Linux to replace the existing applications I currently use with Windows. -
Free and Open Source Software
Free and open source software Copyleft ·Events and Awards ·Free software ·Free Software Definition ·Gratis versus General Libre ·List of free and open source software packages ·Open-source software Operating system AROS ·BSD ·Darwin ·FreeDOS ·GNU ·Haiku ·Inferno ·Linux ·Mach ·MINIX ·OpenSolaris ·Sym families bian ·Plan 9 ·ReactOS Eclipse ·Free Development Pascal ·GCC ·Java ·LLVM ·Lua ·NetBeans ·Open64 ·Perl ·PHP ·Python ·ROSE ·Ruby ·Tcl History GNU ·Haiku ·Linux ·Mozilla (Application Suite ·Firefox ·Thunderbird ) Apache Software Foundation ·Blender Foundation ·Eclipse Foundation ·freedesktop.org ·Free Software Foundation (Europe ·India ·Latin America ) ·FSMI ·GNOME Foundation ·GNU Project ·Google Code ·KDE e.V. ·Linux Organizations Foundation ·Mozilla Foundation ·Open Source Geospatial Foundation ·Open Source Initiative ·SourceForge ·Symbian Foundation ·Xiph.Org Foundation ·XMPP Standards Foundation ·X.Org Foundation Apache ·Artistic ·BSD ·GNU GPL ·GNU LGPL ·ISC ·MIT ·MPL ·Ms-PL/RL ·zlib ·FSF approved Licences licenses License standards Open Source Definition ·The Free Software Definition ·Debian Free Software Guidelines Binary blob ·Digital rights management ·Graphics hardware compatibility ·License proliferation ·Mozilla software rebranding ·Proprietary software ·SCO-Linux Challenges controversies ·Security ·Software patents ·Hardware restrictions ·Trusted Computing ·Viral license Alternative terms ·Community ·Linux distribution ·Forking ·Movement ·Microsoft Open Other topics Specification Promise ·Revolution OS ·Comparison with closed -
Zebronics Realwatts PRO-600 Otherwise
editorial The Tech-sense All of the people working in research labs, over 4 times each! Shouldn’t someone you pay all those working in hardware and software to protect your PCs and data know such a basic companies, all of us working at Digit, and all of thing? What about all the man-hours wasted? you – readers of tech magazines, web sites, and Working in a media company, I also get a tech enthusiasts – all taken together, constitute lot of FTP login details, to get ads, transfer pages, a minority in the grand scheme of things. And download images – the usual deal. I can’t begin not the whole of that minority, mind you, knows to tell you how many times I’ve found the pass- enough about technology to practise it well. words to be weak, and sometimes, it’s the same Over the past decade or so, I have seen as the root password to the actual server’s OS! technology enter every aspect of our lives, and Then there’s the whole web site business, the mobile phone is perhaps now the starting which is just another example of the visually Apoint for most of the world. However, I still find impaired leading the blind. I’ve seen people with so many causes for complaint, when I encounter a distrust for open source software’s security, people who should just know better. get custom-coded solutions that either break or I can’t begin to describe the disappoint- have security holes the size of a bus. -
Download (2MB)
Universidad Autónoma de Nuevo León Facultad de Artes Visuales División de Posgrado TRON De la pantalla grande al monitor. Una reflexión retrospectiva. Por: Miguel Angel Torres Ontiveros Asesor: Dr. Manuchehr Eftekhar Como requisito parcial para obtener el Grado de Maestría en Artes con Especialidad en Difusión Cultural. Noviembre 2007 Índice. Agradecimientos…..……………………………………………….......... 2 Resumen………………………………………………………………….. 4 Introducción……...………………………………………………............. 5 Capítulo I 1.1. Objetivos..……...……………………………………………. 8 1.2. Justificación………………………………........................... 9 1.3. Metodología.……………………………….......................... 10 Capítulo II ¿Quién es Steven Lisberger? 2.1. Breve biografía……...………………………………………. 11 2.2. Preproducción……...…………………………………….…. 13 Capítulo III Producción y posproducción 3.1. Antecedentes……...………………………………………… 18 3.2. Los ilustradores……...……………………………………… 27 3.2.1. Peter Lloyd…...…………………………………… 27 3.2.2. Jean Giraud “Moebius”…………………………… 29 3.2.3. Syd Mead……...…………………………………... 31 3.3. Medios computacionales…...……………………………… 36 3.3.1. Digital Effects Inc. …...…………………………… 38 3.3.2. Robert Abel & Associates…...…………………… 40 3.3.3. Triple-I……...……………………………………… 41 3.3.4. MAGI……...……………………………………….. 45 3.4. Técnicas fotográficas…...………………………..………… 51 3.4.1. Computadoras…...…………………..…………… 54 3.4.2. Fotografía…...…………………………..………… 55 3.5. Estética computacional-cinematográfica…....…………… 65 Capítulo IV Como película de ciencia ficción 4.1. Algunas consideraciones………………………………..…. 73 4.2. Los precedentes……...……………………………….……. -
Der Film Darsteller Technik
Technik Darsteller DISNEY‘S TRON war der erste große Spielfilm, in dem Der Protagonist des längere computergenerierte Sequenzen ein- Films - Programmierer gesetzt wurden - für seinen einzigartigen Stil Kevin Flynn - wird von und die „First Use of Computer-Generated Jeff Bridges gespielt. Animation„ erhielt der Film einen Guinness Dieser übernimmt auch World Record. Eine der am meisten im die Rolle des Compu- Gedächtnis der Zuschauer gebliebenen terprogramms Clu, Szenen ist das Lichtrennen auf dem Raster. welches dem Antlitz von Flynn nachempfunden Der Film wurde, aber komplett anders spricht. Auch im Sequel Tron: Legacy aus dem Jahre 2010 Erscheinungsjahr: 1982 werden beide Rollen wieder von Bridges ver- Regisseur: Steven Lisberger körpert, für welche er den Saturn Award in der Hauptdarsteller: Jeff Bridges, Kategorie „Best Actor“ erhielt. Bruce Boxleitner Darstellung von Lichtrennern aus dem Film An der Seite von Brid- Der Programmierer ges übernimmt Brucle Kevin Flynn ver- Doch diese Szenen machen nur wenige Boxleitner die Rollen sucht Beweise dafür Filmminuten aus - der Großteil von TRON von Dr. Alan T. Bradley zu finden, dass der wurde klassisch auf 70mm-Film gedreht und und dem Sicherheits- Präsident der Compu- die typischen Leuchteffekte durch Backlit programm TRON, wel- ter-Firma ENCOM von Animation erzeugt. Der Aufwand dieses ches von Bradley nach ihm programmierte Verfahrens war um ein Vielfaches größer seinem eigenen Vorbild Spiele gestohlen hat. als bei konventionell gedrehten animierten erschaffen wurde. Auch Beim Versuch, sich in Trickfilmen, da die Szenen in Schwarzweiß er nimmt diese Rollen einen der Firmencom- gedreht, jedes Bild einzeln vergrößert und im Sequel wieder auf. puter zu hacken, wird anschließend nachcoloriert wurden. -
PNG Source Code
PNG Source Code http://www.libpng.org/pub/png/pngcode.html PNG Source Code For those of you who like to go the do-it-yourself route, here are the tools to make your PNG code go (some of which may also be provided with ready-to-go executables). Some of the code, particularly by members of the PNG Development Group, is still kept up to date at the primary Simple Systems ftp site or its UK mirror, but for most things check the appropriate PNG Applications pages for current links. (This page was previously called Code from the PNG Development Group and later PNG Source Code and Libraries. Now it is simply a list of applications, libraries and toolkits that include source code, with more complete descriptions on the relevant PNG applications pages. The two main PNG-related libraries, libpng and zlib, are linked directly and are still maintained by members of the PNG Group, though.) Latest releases: libpng 1.2.8 [license] zlib 1.2.3 [Y2K] [license] Libraries and Toolkits The following programming libraries, toolkits, DLLs and Java classes all include source code and are listed on the toolkits page. Operating-system support is listed in (parenthesized italics), and toolkits that do not derive their PNG support from another listed library (typically libpng)--although they may or may not require zlib--are so noted. (See also Quat in the 3D section for another independent, zlib-based, C implementation of a PNG codec.) 7-Zip (many) - C++ deflate implementation BMGLib (Win32) CamlImages (Caml) Carnegie Mellon Graphics (Win32, Mac OS, Mac OS X, Unix) -
Abiword, 244 Abiword Web Site, 244 About Me
index.fm Page 435 Wednesday, July 19, 2006 11:06 AM Index A Airbrush tool, 312 Abiword, 244 AisleRiot, 21 Abiword Web site, 244 AisleRiot Solitaire, 348–349 About Me command, 56 Alacarte Menu Editor, 20 About Me dialog, 57 Alarms, 216 Accessories menu, 20–21, 54 Alarms window, 216 Account Management screen, 203 alias command, 389–392 Accounts window, 171, 173 Aliases, 173, 389–392 Actions, Purge command, 221 Alternate keyboard, 19, 34 Actions, Send/Receive command, 206 Always on Visible Workspace command, 49 AdBlock extension, 195 Ampersand (&) and commands, 138, 413 Add a Printer dialog, 118–119 Anchor points, 309 Add Account window, 171, 173 AOL, 169 Add Alarm dialog, 216 Apache Software Foundation, xxii Add dialog, 213 APIC controllers (Advanced Programmable Add Repository dialog, 157–158 Interrupt Controller), 19 Add to Address Book command, 207 Applets, 106–108 Add to Panel command, 106 Applications Add/Remove Applications dialog, 151, 153– See also programs 154 accessing, 44 Add/Remove command, 26 automatic updates, 156–157 Address books, 207–208, 219 availability, 8 Addresses table, 287, 292 categories, 152 Administering system, 28–30 closing, 50 Administration submenu, 29–30 core set, 5 Administrative mode, 382 default for files, 82 Administrative prompt (#), 382 as default type of launcher, 104 Administrator dependency checks, 150 functions and passwords, 137–138 description, 152–153, 155–156 installing software and software desktop, 105 packages, 150 distributions, 4 Advertising rings, 190 embedded, 106 AIM/ICQ protocol, 171