TortoiseSVN Latency is Everywhere and it Costs You Sales - How to Crush it | Update 8: The Cost of Latency by James Hamilton. James summarizing some latency info from Steve Souder, Greg Linden, and Marissa Mayer. Speed [is] an undervalued and under-discussed asset on the web. Update 7: How do you know when you need more memcache servers?. Latency matters. The Amazon results were reported by Greg Linden in his presentation Make Data Useful. The less interactive a site becomes the more likely users are to click away and do something else. I wondered if latency went to zero if sales would be infinite? How do we recover that which is most meaningful--sales--and build low-latency systems? I'm excited that the topic of latency came up. Latency Defined Latency Explained The best explanation of latency I've ever read is still It's the Latency, Stupid by admitted network wizard Stuart Cheshire. I like the parallel with sharding in this observation. Sources of Latency
10 skills for developers to focus on in 2013 Development trends that began to emerge in 2012 are picking up steam. Here's a look at the must-know technologies for the year ahead. Editor's note: At the beginning of 2012, Justin James wrote a list of technologies that were gaining momentum in the dev world. Now he revisits that list with an eye toward 2013. Looking back on this article after nearly a year, I'm struck by how quickly some of these trends have steamrolled. Thanks to mobile devices that receive frequent updates (notably iOS devices) and the short release cycles of Chrome and Firefox, it has been possible for HTML5 to rapidly ascend to the top of the pile in many ways. The enterprise market running Java and .NET on the backend and using SOAP for communications The consumer market using PHP, Ruby, and Python on the backend with lightweight REST Web services Looking ahead to 2013, I really do not think that the items on this list need to change much. What skills do you need? 1: Mobile development 2: NoSQL 3: Unit testing
Cuando el problema del hardware se convierte en sólo de software Disclaimer: No pensaba escribir este apunte porque me parece que es publicidad gratuita a Amazon (y sus servicios AWS), que ya es una empresa de las gordas y dominantes en el mercado… y no me regalaron, ni me regalarán, ni una triste pegatina. Pero lo escribo para compartir experiencia, y que conste en acta que no recibiremos ni unas gracias por este apunte. Hace un tiempo escribí cómo montamos Menéame a Amazon AWS, y cómo decidimos cambiar de Apache+lighttpd a NGinx, ahora llevamos casi cinco meses de funcionamiento en Amazon AWS y la experiencia no podría haber sido más satisfactoria (aunque con pequeños problemas, relatados al final). Ejemplos de cambios en servidores Creo que lo últimos cambios que hicimos son ejemplos claros de las ventajas de no tener que lidiar con hardware y limitarnos a solucionar problemas de software (que siempre tiene solución, si sabes programar). Hace sólo uno días me decidí a optimizar la gestión de cache de imágenes (miniaturas y avatares). Instancias EC2
Welcome [Savannah] Bonita open source BPM community CVS - Open Source Version Control Apache Subversion Document Management System | Open Source DMS - OpenKM Top 10 Open Source Web-Based Project Management Software This is an user contributed article. Project management software is not just for managing software based project. It can be used for variety of other tasks too. The web-based software must provide tools for planning, organizing and managing resources to achieve project goals and objectives. A web-based project management software can be accessed through an intranet or WAN / LAN using a web browser. Obviously I’m not the only user, the following open source software is used by some of the biggest research organizations and companies world wild. #1: Codendi Codendi is an open-source collaborative development platform offered by Xerox. Download Codendi #2: Redmine Redmine is a flexible project management web application. Download redmine #3: ProjectPier ProjectPier is a Free, Open-Source, self-hosted PHP application for managing tasks, projects and teams through an intuitive web interface. Download ProjectPier #4: Trac Trac is an open source, web-based project management and bug-tracking tool.
HTML5 This specification defines the 5th major version, second minor revision of the core language of the World Wide Web: the Hypertext Markup Language (HTML). In this version, new features continue to be introduced to help Web application authors, new elements continue to be introduced based on research into prevailing authoring practices, and special attention continues to be given to defining clear conformance criteria for user agents in an effort to improve interoperability. This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at This document was published by the Web Platform Working Group as a W3C Recommendation for HTML 5.2 that would obsolete the HTML 5.1 Recommendation. This document was produced by a group operating under the W3C Patent Policy.
PHP: Hypertext Preprocessor