Successfully deploy XenDesktop sites for a high performance Virtual Desktop Infrastructure (VDI) About This Book Size the VDI environment so the administrator has breathing room to design and build their XenDesktop systems efficiently Use desktop virtualization tools to provide users fast, convenient access to their Windows Desktops Understand the key pinch points in the resource layers such as; the Client layer, Network Layer, Access Layer, Control Layer, Services Layer and Resources Layer Who This Book Is For Citrix XenDesktop High Performance is written for administrators who would like to deploy Citrix XenDesktop in their enterprises with the aim of providing high efficiency. Basic familiarity with Citrix XenDesktop is assumed. What You Will Learn Understand key concepts, terminology, and system requirements Discover how components work in regards to virtualization and performance Identify architectural resource layers and components Explore the hypervisor virtualization software that runs on top of the hardware and learn how to tune it for maximum performance Analyze client hardware and software, including thin clients and mobile devices In Detail Citrix XenDesktop is a suite of desktop virtualization tools designed to provide users with fast and convenient access to their Windows desktops and applications through any device. Virtual desktops mean that rather than setting up hundreds or thousands of individual computers in an enterprise, companies can instead opt to create servers with large amounts of memory, disk, and processing resources, and use virtualization to offer these resources to end users. The result of this is that users are provided with an experience that appears to be identical to having an individual desktop PC. Each user has some disk space, processor time, and memory allocated to them, as though it is present on their own physical machine, when in reality, the resources are physically present on a centralized server. This book starts by answering the basic questions you need to ask when considering XenDesktop, followed by methods of how you can properly size your server infrastructure for XenDesktop. You’ll discover how to optimize the virtual machines used in XenDesktop, how to optimize your network for XenDesktop, and how to optimize the hypervisor and the cloud. You’ll also learn how to monitor XenDesktop to maximize performance. By the end of the book, you will be able to plan, design, build, and deploy high performance XenDesktop Virtualization systems in enterprises. You will also know how to monitor and maintain your systems to ensure smooth operation. Style and approach This book is an all-inclusive guide that uncovers hidden and previously unpublished performance improvement areas for any XenDesktop site.

Grok and perform effective functional programming in Scala About This Book Understand functional programming patterns by comparing them with the traditional object-oriented design patterns Write robust, safer, and better code using the declarative programming paradigm An illustrative guide for programmers to create functional programming patterns with Scala Who This Book Is For If you have done Java programming before and have a basic knowledge of Scala and its syntax, then this book is an ideal choice to help you to understand the context, the traditional design pattern applicable, and the Scala way. Having previous knowledge of design patterns will help, though it is not strictly necessary. What You Will Learn Get to know about functional programming and the value Scala's FP idioms bring to the table Solve day-to-day programming problems using functional programming idioms Cut down the boiler-plate and express patterns simply and elegantly using Scala's concise syntax Tame system complexity by reducing the moving parts Write easier to reason about concurrent code using the actor paradigm and the Akka library Apply recursive thinking and understand how to create solutions without mutation Reuse existing code to compose new behavior Combine the object-oriented and functional programming approaches for effective programming using Scala In Detail Scala is used to construct elegant class hierarchies for maximum code reuse and extensibility and to implement their behavior using higher-order functions. Its functional programming (FP) features are a boon to help you design “easy to reason about” systems to control the growing software complexities. Knowing how and where to apply the many Scala techniques is challenging. Looking at Scala best practices in the context of what you already know helps you grasp these concepts quickly, and helps you see where and why to use them. This book begins with the rationale behind patterns to help you understand where and why each pattern is applied. You will discover what tail recursion brings to your table and will get an understanding of how to create solutions without mutations. We then explain the concept of memorization and infinite sequences for on-demand computation. Further, the book takes you through Scala’s stackable traits and dependency injection, a popular technique to produce loosely-coupled software systems. You will also explore how to currying favors to your code and how to simplify it by de-construction via pattern matching. We also show you how to do pipeline transformations using higher order functions such as the pipes and filters pattern. Then we guide you through the increasing importance of concurrent programming and the pitfalls of traditional code concurrency. Lastly, the book takes a paradigm shift to show you the different techniques that functional programming brings to your plate. This book is an invaluable source to help you understand and perform functional programming and solve common programming problems using Scala’s programming patterns. Style and approach This is a hands-on guide to Scala's game-changing features for programming. It is filled with many code examples and figures that illustrate various Scala idioms and best practices.

Unleash the power of shell *s to solve real-world problems by breaking through the practice of writing tedious code About This Book Learn how to efficiently and effectively build shell *s and develop advanced applications with this handy book Develop high quality and efficient solutions by writing professional and real-world *s, and debug *s by checking and shell tracing A step-by-step tutorial to automate routine tasks by developing *s from a basic level to very advanced functionality Who This Book Is For This book is ideal for those who are proficient at working with Linux and who want to learn about shell *ing to improve their efficiency and practical skills. By the end of this book, you will be able to confidently use your own shell *s in the real world. What You Will Learn Familiarize yourself with the various text filtering tools available in Linux Combine the fundamental text and file processing commands to process data and automate repetitive tasks Understand expressions and variables and how to use them practically Automate decision-making and save a lot of time and effort of revisiting code Get to grips with advanced functionality such as using traps and signals and using dialogs to develop screens Start up a system and customize a Linux system Take an in-depth look at regular expressions and pattern matching to understand the capabilities of *ing In Detail Linux is the one of the most powerful and universally adopted OSes. Shell is a program that gives the user direct interaction with the operating system. Scripts are collections of commands that are stored in a file. The shell can read this file and act on the commands as if they were typed on the keyboard. Shell *ing is used to automate day-to-day administration, and for testing or product development tasks.This book covers Bash, GNU Bourne Again SHell, preparing you to work in the exciting world of Linux shell *ing. We start with an introduction to the Shell environment and explain basic commands used in Shell. Next we move on to check, kill, and control the execution of processes in Linux OS. Further, we teach you about the filter tools available in Linux and explain standard output and standard errors devices.Then we will ensure you understand Shell’s interpretation of commands and get a firmer grasp so you use them in practice. Next, you’ll experience some real-world essentials such as debugging and perform Shell arithmetic fluently. Then you’ll take a step ahead and learn new and advanced topics in Shell *ing, such as starting up a system and customizing a Linux system. Finally, you’ll get to understand the capabilities of *ing and learn about Grep, Stream Editor, and Awk.Style and approach This practical book will go from the very basics of shell *ing to complex, customized automation. The idea behind this book is to be as practical as possible and give you the look and feel of what real-world *ing is like.

A focused tutorial, this book provides a range of practical examples with downloadable code, showing you how to create business process diagramming templates with Visio and enabling you to effectively visualize business information. It draws on real business examples and needs, and covers all the new features of Visio 2010 Premium Edition. If you are a Microsoft Visio 2010 Premium Edition user or developer who wants to get to grips with both the basic features of Visio 2010 and the new Validation Rules in this edition, then this book is for you. A working knowledge of Microsoft Visio, and optionally .NET for the add-in code, is required, though previous knowledge of business process diagramming is not necessary. More experienced Visio users will gain valuable knowledge for building add-ins and creating and publishing rules. If you want to achieve results from Visio 2010 beyond the ordinary out-of-the-box features, then this book is ideal for you. Although this book covers the Premium Edition, much of the book is still useful if you are a Visio 2010 Standard Edition or Professional Edition user.

Written in a cookbook style, this book offers solutions using a recipe-based approach. Each recipe contains step-by-step instructions followed by an analysis of what was done in each task and other useful information. This Cookbook is targeted towards those with at least a basic understanding of the Flash Builder IDE and the Flex framework. No prior knowledge of the Facebook APIs is assumed or required. If you want to start building Flash Facebook apps quickly and effectively this is the book for you.

Improving database performance requires an equal mix of understanding theoretical concepts and working through hands-on examples. You'll find both here. Many of the examples given will be immediately useful for monitoring and improving your PostgreSQL deployments, providing insight into hard-to-obtain information about your database. This book is aimed at intermediate to advanced database administrators using or planning to use PostgreSQL. Portions will also interest systems administrators looking to build or monitor a PostgreSQL installation, as well as developers interested in advanced database internals that impact application design.

Axure RP 6 Prototyping Essentials is a detailed, practical primer on the leading rapid prototyping tool. Short on jargon and high on concepts, real-life scenarios and step-by-step guidance through hands-on examples, this book will show you how to integrate Axure into your UX workflow. This book is written for UX practitioners, business analysts, product managers, and anyone else who is involved in UX projects. The book assumes that you have no or very little familiarity with Axure. It will help you if you are evaluating the tool for an upcoming project or are required to quickly get up to speed in a project you just joined. The book assumes some familiarity with the principles of the User Centred Design methodology.

This book is full of fun and engaging recipes with modular libraries that can be plugged into your project. Each recipe consists of explained code accompanied by screenshots for your understanding. If you want to elevate your basic Cocos2d project to the next level, this is the book for you. Some understanding of Objective-C and Cocos2d is recommended. People with some programming experience may also find this book useful.

This is a step-by-step book that builds on your knowledge by adding to an example game over the course of each chapter. Each topic uses example code that can be compiled and tested to show how things work instead of just telling you. Complicated tasks are broken down into easy to follow steps with clear explanations of what each line of code is doing. This book is written for beginners to UnrealScript, whether this is your first experience with programming or you're coming into it from another language and would like to learn how UnrealScript uses concepts you're already familiar with. If you would like to make games with the Unreal Development Kit, this book is for you.

Each chapter starts by showing the user experience we are going to create in the chapter. It then has a section discussing the major design decisions we face in building these features, and finally presents the 'solution' including the overall architecture and highlighting the most important code elements. The book presents a lot of real-world code, with comprehensive explanation and discussion. The full social network application is available for download from the Packt website, for you to examine, study, and modify. This book is written for ASP.NET and C# developers who want to build an enterprise-grade Social Network, either for their own business purposes or as a contract job for another company. The book assumes you have prior experience of developing web applications using ASP.NET 3.5, C# 3.0, SQL Server 2005/2008, and Visual Studio .NET 2008; it focuses on topics that will be of interest to existing developers not on providing step-by-step examples for each detail.

This book is written in a Cookbook style with short recipes showing developers how to effectively implement EIP without breaking everything in the process. It is concise and to the point, and it helps developers get their data flowing between different components without the need to read through page upon page of theory, while also enabling the reader to learn how to create exciting new projects.Camel Enterprise Integration Cookbook is intended for developers who have some familiarity with Apache Camel and who want a quick lookup reference to practical, proven tips on how to perform common tasks. Every recipe also includes a summary and reference pointers for more details that make it easy for you to get a deeper understanding of the Apache Camel capabilities that you will use day to day.

An easy-to-understand guide, covering topics using practical scenarios and live examples, and answering all possible questions.If you are a solution architect, developer, modeler, sales leader, business transformation managers, directors, COO, or CIO; this book is perfect for you. If you are interested in other technologies and want to jump-start into SAP, this book gives you the chance to learn SAP HANA. Basic knowledge of RDBMS concepts enough is to get you started.

Intended for seasoned Go programmers who want to put their expertise in Go to use to solve big, real-world, modern problems. With a basic understanding of channels and goroutines, you will hone your skills to build tools and programs that are quick and simple. You need not be an expert in distributed systems or technologies in order to deliver solutions capable of great scale. It is assumed that you are familiar with the basic concepts of Go.

After introducing the fundamental principles of SCM and the benefits of using SCM to manage the software development lifecycle this book uses a real-world case-study project to build a Service-Oriented Application named Orbital Hotel. You will learn the team cooperation features in Visual SourceSafe with the help of John and Mary, two fictional team members assigned to implement various project components. You can visit Orbital Hotel online and you can download its source code. The appendices deal with SourceSafe administration tasks: database creation and management, how to secure the database and how to assign users and user rights, how to manage projects and project settings, and how to customize SourceSafe to best suit your development style. This book is for .NET developers, testers and configuration managers who: Use Visual Studio .NET 2005 for building software Want to use software configuration to manage their products in day-to-day activities Want to improve their efficiency by learning to use the best practices with SourceSafe Want to install, manage, and configure Visual SourceSafe 2005 for optimal operation. The book does not assume previous knowledge of Software Configuration Management or Visual SourceSafe. It takes the reader from the ground up and is a great resource for people starting to learn about this subject. Readers with previous SourceSafe experience will benefit by discovering the improved and new features in Visual SourceSafe 2005.

Part of Packt's Beginner's Guide series, each chapter looks at a different aspect of using Moodle in a business environment, and steadily guides the reader through setting Moodle up in their own business with the help of practical examples, accompanied by lots of screenshots. Each chapter also includes case studies from well-known companies that have already implemented Moodle. If you are responsible for training, recruitment, or maintaining any guidelines within your company, then this book is for you. No previous experience with Moodle is necessary as the examples are easy to follow

This book consists of an easy-to-follow, example-based approach that leads you step-by-step through the implementation and customization of each library component.This book is for frontend designers and developers who need to learn how to use jQuery UI quickly. To get the most out of this book, you should have a good working knowledge of HTML, CSS, and JavaScript, and should ideally be comfortable using jQuery.

iPhone Game Blueprints is a practical, hands-on guide with step-by-step instructions leading you through a number of different projects, providing you with the essentials for creating your own iPhone games.This book is for graphic designers, developers, illustrators, and simple enthusiasts, who dream about the creation of mobile games or who have already worked in that domain, but need some additional inspiration and knowledge. This book can be considered as an illustrated handbook, worth having in your game development studio. It can work as a “paper art-director” for your project.

This book is aimed at people with existing online stores, built using osCommerce. The book follows a systematic approach whereby users can modify and extend features on their already existing osCommerce site. Each chapter deals with a different aspect , and provides ready-made recipes for modifying code to your requirements. The author starts by explaining basic changes one can make to the design of your store, and then covers features like navigation, images, shipping and payment modules, and even explains how to make changes on the administrator?s side and keeping your own recipes private. This book is for people who are already familiar with osCommerce. It presumes a working knowledge of PHP and HTML, as well as basic understanding of phpMyAdmin for database inserts.

Network analysis using Wireshark Cookbook contains more than 100 practical recipes for analyzing your network and troubleshooting problems in the network. This book provides you with simple and practical recipes on how to solve networking problems with a step-by-step approach.This book is aimed at research and development professionals, engineering and technical support, and IT and communications managers who are using Wireshark for network analysis and troubleshooting. This book requires a basic understanding of networking concepts, but does not require specific and detailed technical knowledge of protocols or vendor implementations.

This book is a step-by-step tutorial to guide you through learning WCF and LINQ to Entities. You will be guided to create five WCF and LINQ solutions from scratch, of which three are multi-tiered real-world WCF service solutions, so you will not only be reading, but also be coding through the book, to gain practical experience of WCF and LINQ to Entities. Various test clients will be associated with each solution and these solutions can be built and run independently of other solutions. Clear step-by-step instructions and relevant screenshots will make sure you won't get lost in the new world of WCF and LINQ to Entities. Configuration files, host applications, test clients, and WCF services for each solution will also be available for download for you to examine, modify, and debug from the outside in. The book focuses on the essentials of using WCF and LINQ to Entities, rather than providing a reference to every single possibility. It leaves the reference material online where it belongs, and concentrates instead on practical examples, code, and advice. This book is for C# and C++ developers who are eager to get started with WCF and LINQ to Entities, and want a book that is practical and rich with examples from the very beginning. Developers and architects evaluating SOA implementation technologies for their company will find this book particularly useful because it gets you started with Microsoft's tools for SOA and shows you how to customize our examples for your prototypes. This book presumes basic knowledge of C# or C++. Previous experience with Visual Studio will be helpful but is not required, as detailed instructions are given throughout the book.

The author’s experience as a Moodle developer enables him to combine a simple, de*ive how-to approach with enthusiastic insights into the rich potential of customizing Moodle according to your needs. The chapters gradually build up your skills and by the end of the book you will be confident enough to customize Moodle on your own. This book is written for technologists who are interested in expanding Moodle's functions through programming, either for their own organizations or to contribute to the open source project. You should be familiar with Moodle's basic technologies: PHP, MySQL ,and HTML/CSS.