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Nous avons le plaisir d’accueillir le groupe Web Performance Paris, jeudi 7 novembre à partir de 19h, pour une soirée de présentations et d’échange dédiée aux performances web. 
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Qt 5.1 brings enhanced UI controls and layouts, improved OpenGL support, various Qt IDE updates, and includes a preview version of Qt for Android and iOS.
Mickael Ruau's insight:
Qt 5.1 introduces preliminary versions of the previously promised Qt for Android and Qt for iOS, which are due in final form by the time Qt 5.2 rolls around later this year. Despite the preview status, both are “already very usable for a large number of use cases,” says the Qt project. As with the many other OS-specific versions of Qt, the goal is to minimize coding required to port applications between platforms.
Qt for Android appears to be a bit more developed than the iOS version, which still lacks the Android version’s support for Qt Quick 2, the latest version of the platform’s declarative scripting language. Qt for Android supports all Qt 5.1 modules, with the exception of Qt WebKit, parts of Qt Multimedia, and the new Qt Serialport module, says the project. Qt for Android is said to offer significant integration with Qt Creator, enabling all but the final stages of development.
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Web fonts have expanded the designer’s palette and often provide a richer experience for users, but how can we make them more sustainable?
Mickael Ruau's insight:
LESS IS MORE
No matter which option you choose, you can minimize server load time by using fonts thoughtfully. It pays to be careful when selecting how and when to use them. Think about using fonts sparingly. A web font may look great as a header, but it’s probably not necessary for all the body copy, which could be rendered with a system font. By taking preventative measures while planning your site you can save on overall page size and server load when your website launches. ADDITIONAL RESOURCESWeb Open Font FormatWeb Font Performance: Weighing @font-face Options and AlternativesPreventing the Performance Hit from Custom FontsFree Font UtopiaFallback Fonts on Mobile DevicesWeb Font Performance: Which method reigns supreme on the web?
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A la question de savoir s’il est préférable, écologiquement parlant, d’acheter un DVD ou un Blu-ray au lieu de le visionner en streaming haute définition par Internet, notre confrère Green-IT à une réponse claire.
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I guess that I don’t have to start talking about the importance of testing in the software development process. There are couple of different kind of tests which I’m not going to mention now, but generally speaking a good test should verify the correct implementation of the business requirements but also test the software on its boundaries and edge cases.
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This is the final blog post in a three-part series designed to explain the function and importance of Web performance monitoring today. We started by looking at how Web performance monitoring...
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Research: App Dev in the Age of Mobility
Mickael Ruau's insight:
Still, our survey shows no clear leading strategy. Far from it, in fact--this is anybody's game. Users weaned on slick app store fare may spurn small-screen browser apps, but thanks to HTML5, browser technology isn't standing still or going away. Whether mobility means a return to native development for your shop largely depends on the audience--business apps for employees and partners are a different matter from those aimed at customers. In this report, we'll mainly focus on the former, but many principles are the same.
We'll run down device platforms, design choices, development tools and deployment options and conclude with recommendations on mobilizing your enterprise applications and business processes.
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This article describes hardware and software division on the mobile platform market.
Mickael Ruau's insight:
This article describes hardware and software division on the mobile platform market. “Mobile platform” means mass handheld devices with an autonomous power source designated for solving a large variety of general tasks: entertainment, communications and business. This article does not examine personal desktop computers and their portable versions (notebooks/netbooks/etc.)
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Motorola a annoncé le lancement du projet Ara, qui vise à mettre en place une plateforme matérielle libre et ouverte. L'ambition de l'entreprise américaine est de
Mickael Ruau's insight:
Dernièrement, la société indique avoir rencontré le créateur du projet Phonebloks, un concept de téléphone modulaire où ses éléments internes sont prévus (sur le papier en tout cas) pour être interchangeables. Celui-si s'est chargé de constituer une communauté tandis que Motorola s'est concentré sur l'aspect technique du projet Ara.
"Notre objectif est de bâtir une relation plus réfléchie, expressive et ouverte entre les utilisateurs, les développeurs et leurs téléphones. Pour vous donner le pouvoir de décider ce que votre téléphone fait, à quoi il ressemble, en quoi il a été fabriqué et à quel endroit, combien il coûte, combien ça coûte et combien de temps vous allez le garder", s'enthousiasme Motorola.
Motorola n'est pas le seul constructeur à s'intéresser au principe d'un mobile entièrement modulaire. Microsoft possède des brevets en ce sens. Mais le projet Ara a manifestement une longueur d'avance, puisqu'il est en passe de dépasser le stade de la table à dessin pour devenir réalité.
Selon Motorola, des invitations seront adressées dans "quelques mois" à des développeurs et la sortie en version alpha du kit de développement modulaire est prévue pour cet hiver.
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Tandis que les TIC sont désormais omniprésentes dans les entreprises, mais aussi chez les particuliers, leur impact écologique est de plus en plus mis en évidence.
Mickael Ruau's insight:
La deuxième édition des matinales technologiques de l’ISTIA vous permettra d’en savoir plus sur les principes de l’informatique durable avec l’intervention de Nicolas Gutowski, professionnel de l’informatique durable membre du Green Code Lab, et de Laurent Velours, créateur de l’entreprise Fret Connexion, dont la philosophie s’inscrit dans les thématiques du Green It. Plus d’information et inscription : https://www.eventbrite.fr/event/8967711667
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Chez Google, nous nous sommes efforcés de minimiser l'impact de nos services sur l'environnement.
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Mai 2009, Dell annonce une nouvelle génération de serveurs économiques, performants et à haute densité : basé sur le processeur VIA Nano, consommant moins de 25W, avec une densité de 12 serveurs sur 2U.
Mickael Ruau's insight:
Le serveur DELL XS11-VX8 est destiné aux hébergeurs, aux datacenters, ... C'est un serveur économique, très haute densité. Il est destiné aux applications peu exigeantes en ressources, comme les serveurs Web.
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Quelle méthode et quelles étapes sont à respecter pour réussir la mise en œuvre de sa démarche RSE ? Où trouver les principaux textes de références ?
Mickael Ruau's insight:
Où trouver les principaux textes de références ? Normes ISO 14000 : http://www.iso.org/iso/fr/home/standards/management-standards/iso14000.htm?=Norme Française Bâtiments tertiaires - Démarche HQE Exploitation (QEP) : http://www.certivea.fr/nos-certifications/certifications-batiments-non-residentiels/nf-hqe-batiments-tertiairesSystème de Management EMAS : http://ec.europa.eu/environment/emas/Marque Envol : www.envol-entreprise.fr/
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QML - CSS & JavaScript like language, same code base for UI designers & developers
Mickael Ruau's insight:
A Beautiful Language with a Solid C++ Backend for Performance
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I had read early on about download speeds and performance issues, but had never really seen any performance issues in the sites I had developed that warranted worrying about @font-face. Recently, however, I've been having many conversations with co-workers about focusing on performance and the amount of downloaded data. As we do more and more responsive and mobile-optimized sites, it's becoming apparent that this is key. These conversations led me to a comparison of the three primary methods I use: @font-face, Google Fonts, and Typekit. I thought it would be great to know which one is best in terms of performance and weight, as I'd imagine many others would as well. So I set up a simulation and commenced the speed tests.
Mickael Ruau's insight:
Looking at the comparison breakdown above, Typekit wins the page load average, and has the lowest amount of data downloaded, with Google second and @font-face third. Not surprising, @font-face had the highest bytes in count, as the full font file is served. Most surprising to me is how little was served by Typekit. I had wondered going into this test whether the yearly cost might be worthwhile, while other options are served without cost, and found that it really is a good deal. Google is right in the middle with good selection, performance and weight. As a result of all this, I’ll likely look to Google more in the future, and less to @font-face. While Typekit wins this test in performance, I’ll happily look to Google before dishing out the fees. In the end, great type wins, and each of these methods is a perfectly reasonable way to go.
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Are animated GIFs slowing down your web app? Find and fix the problem!
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An interesting blog post is making the rounds on Twitter, 10 Things You Maybe Didn’t Know About C#. There are some nice points in there, such as using the FieldOffset attribute to create unions or specifying custom add/remove accessors for events.
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Last week, Christophe Coenraets presented at the HTML5 Developers Conference in downtown San Francisco, and his presentation consisted of a list of tips that many mobile devs may find useful: The "Top 10 Performance Techniques for PhoneGap and...
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L'association Green Lab Center entend aider les PME à détecter les équipements informatiques gourmands en énergie...
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Facebook deploys one of the biggest PHP codebases in the world. They’re not only pushing the boundaries of what you can do with PHP, but also PHP itself. A few years ago they open-sourced their hiphop compiler and nowadays facebook.com runs on their latest generation of the HipHop Virtual Machine (hhvm).
Mickael Ruau's insight:
Congratulations! You now have a working HHVM install and you can try to run all your scripts with it. In the next blog post of this series we’ll get webserver together with the Symfony standard edition running with hhvm. In the mean time, enjoy playing!
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La commune de Saint-Julien-en-Beauchêne, située dans une zone à "très faible rayonnement" dans les Hautes-Alpes, veut ouvrir un centre d'accueil des personnes hypersensibles. Via Hubert MESSMER
Mickael Ruau's insight:
A méditer avant de déployer des réseaux sans fil (wifi, etc.)...
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Reduce your page size by looking under the hood of text compression.
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Le Green Code Lab Challenge est le premier concours international inter-écoles qui plonge les étudiants au coeur de l'éco-conception logicielle. Retransmis en direct et en simultané via le web entre plusieurs campus en ...
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Les machines basse consommation utilisant un processeur ARM accueillent un nouveau projet prometteur : le Raspberry PI. Ce projet Anglais, encore à l'état de prototype, devrait être en vente avant la fin de l'année !
Mickael Ruau's insight:
Il existe 2 modèles de RaspberryPI, qui consomme aux environs de 1W, soit 3x moins que mon Seagate DockStar.
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Comme moi vous avez acheté un RaspberryPi, pas cher, mais très pas puissant. J'ai regardé le ODroid, le Cubieboard2 ... Mais voici qu'on annonce le Utile Quad-Core ARM Cortex-A9 à 99$ !
Mickael Ruau's insight:
Compulab a produit les fit-PC (x86) et Trim-Slice (Tegra2) et maintenant le Utile ! Le Utitile ARM Cortex-A9 desktop est une bombe ! Jugez plutôt : Le processeur ARM FreeScale fonctionne sans problème sous Linux et Android.
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