To solve performance problems in modern computing infrastructures, often comprising thousands of servers running hundreds of applications, spanning multiple tiers, you need tools that go beyond mere reporting. You need tools that enable performance analysis of application workflow across the entire enterprise. That's what PDQ (Pretty Damn Quick) provides. PDQ is an open-source performance analyzer based on the paradigm of queues. Queues are ubiquitous in every computing environment as buffers, and since any application architecture can be represented as a circuit of queueing delays, PDQ is a natural fit for analyzing system performance. Building on the success of the first edition, this considerably expanded second edition now comprises four parts. Part I contains the foundational concepts, as well as a new first chapter that explains the central role of queues in successful performance analysis. Part II provides the basics of queueing theory in a highly intelligible style for the non-mathematician; little more than high-school algebra being required. Part III presents many practical examples of how PDQ can be applied. The PDQ manual has been relegated to an appendix in Part IV, along with solutions to the exercises contained in each chapter. Throughout, the Perl code listings have been newly formatted to improve readability. The PDQ code and updates to the PDQ manual are available from the author's web site at www.perfdynamics.com

Making the most ef?cient use of computer systems has rapidly become a leading topic of interest for the computer industry and its customers alike. However, the focus of these discussions is often on single, isolated, and speci?c architectural and technological improvements for power reduction and conservation, while ignoring the fact that power ef?ciency as a ratio of performance to power consumption is equally in?uenced by performance improvements and architectural power red- tion. Furthermore, ef?ciency can be in?uenced on all levels of today's system hi- archies from single cores all the way to distributed Grid environments. To improve execution and power ef?ciency requires progress in such diverse ?elds as program optimization, optimization of program scheduling, and power reduction of idling system components for all levels of the system hierarchy. Improving computer system ef?ciency requires improving system performance and reducing system power consumption. To research and reach reasonable conc- sions about system performance we need to not only understand the architectures of our computer systems and the available array of code transformations for p- formance optimizations, but we also need to be able to express this understanding in performance models good enough to guide decisions about code optimizations for speci?c systems. This understanding is necessary on all levels of the system hierarchy from single cores to nodes to full high performance computing (HPC) systems, and eventually to Grid environments with multiple systems and resources.

Learn everything you need to know about making Windows 10 easier to use, see, hear, touch, or read, whether you are using it yourself, setting it up for another person, teaching others about ease of use at work or in the home, or working with a variety of people with specific needs in the community. What You'll Learn: Manage accessibility in the Settings app, and make use of the Ease of Access Center Make your keyboard and mouse easier to use Make text and windows easier to read Use text or visual alternatives for sounds Use the narrator, and control it using touch and with the keyboard Use Cortana as a smart PC assistant Make use of Windows 10 shortcut keys, and touch and trackpad gestures Use and train the handwriting recognition feature Dictate or navigate using speech recognition Who This Book Is For:< The audience for this book includes (but is not limited to) Windows users with special visual, auditory, motor, and cognitive needs, at home and in the workplace. It provides guidance for IT and management professionals who work with such users, as well as the community and statutory groups, organizations, colleges, universities, and government agencies that support them. It is also a guide for friends and family supporting elderly or disabled Windows users in the home, and for anyone else looking for advice on how to make their PC simpler, easier, more productive, and ultimately more enjoyable to use.

This Festschrift volume includes a collection of papers written in honor of the accomplishments of Professor Yonezawa on the occasion of his 65th birthday in 2012. With a few exceptions, the papers in this Festschrift were presented at an international symposium celebrating this occasion. Also included are reprints of two of Professor Yonezawa's most influential papers on the programming language ABCL. The volume is a testament strong and lasting impact Professor Yonezawa's research accomplishments as well as the inspiration he has been to colleagues and students alike.

This book constitutes the thoroughly refereed post-conference proceedings of the Second International Workshop on Smart Grid Security, SmartGridSec 2014, held in Munich, Germany, in February 2014. The volume contains twelve corrected and extended papers presented at the workshop which have undergone two rounds of reviewing and improvement. The engineering, deployment and operation of the future Smart Grid will be an enormous project that will require the active participation of many stakeholders with different interests and views regarding the security and privacy goals, technologies, and solutions. There is an increasing need for workshops that bring together researchers from different communities, from academia and industry, to discuss open research topics in the area of future Smart Grid security.

This book constitutes the refereed proceedings of the 20th International Conference on Parallel and Distributed Computing, Euro-Par 2014, held in Porto, Portugal, in August 2014. The 68 revised full papers presented were carefully reviewed and selected from 267 submissions. The papers are organized in 15 topical sections: support tools environments; performance prediction and evaluation; scheduling and load balancing; high-performance architectures and compilers; parallel and distributed data management; grid, cluster and cloud computing; green high performance computing; distributed systems and algorithms; parallel and distributed programming; parallel numerical algorithms; multicore and manycore programming; theory and algorithms for parallel computation; high performance networks and communication; high performance and scientific applications; and GPU and accelerator computing.

The sed & awk Pocket Reference is a handy, quick reference guide to frequently used functions, commands, and regular expressions used for day-to-day text processing needs. This book is a companion to both sed & awk, Second Edition and Effective awk Programming, Third Edition.

With Learn Sprite Kit for iOS Game Development, you'll discover how easy it is to create 2D games using the new Sprite Kit framework from Apple. You'll find how simple it is to create a scene, add animated sprites, incorporate edges, play sound effects, and create animated particles for special effects. You'll also use touch events to control your sprites, implement the built-in physics engine, handle sprite collisions and contacts, and much more. To help you in learning how to use all these cool features of Sprite Kit, you'll follow along as we build a complete 2D game for iPhone. By the time you finish the book, you'll have made your own 2D game, and you'll have learned all you need to know to get started on your next masterpiece.What you'll learn * How to add animated sprites to your game scene * Using TouchEvents to have your sprite react to touch input * How to apply realistic physics to your game scene and characters * Handling sprite collisions and contacts with other game elements * Adding game logic for sprite interaction, scoring, levels, and more * Adding a second player and using GameKit Who this book is for Beginning developers who have some understanding of object-oriented programming as well as intermediate iOS developers who want to get up to speed quickly with Sprite Kit.

Migrating to Swift From Web Development gives you the ability to create native iOS apps using the latest Swift programming language. Starting with preparing your latest Xcode 6 Integrated Development Environment and introducing just enough iOS application framework fundamentals, you'll understand how to create a simple but meaningful Hello Swift application for iOS 8 immediately. After the short IDE setup guide, this book will show you how to structure your iOS project from an existing mobile web app. Every topic comes with a tutorial project that you will create by yourself. You'll plan and structure your iOS apps using Xcode Storyboard, implementing use cases with detailed screens, and learn about managing data and working with remote services. Finally, you'll experience a recap of the whole porting process by translating a mobile web app to iOS 8 from start to end. When you finish reading Migrating to Swift from Web Development, you'll be an iOS developer as well as a front-end web developer.

Learn Linux, and take your career to the next level! Linux Essentials, 2nd Edition provides a solid foundation of knowledge for anyone considering a career in information technology, for anyone new to the Linux operating system, and for anyone who is preparing to sit for the Linux Essentials Exam. Through this engaging resource, you can access key information in a learning-by-doing style. Hands-on tutorials and end-of-chapter exercises and review questions lead you in both learning and applying new information information that will help you achieve your goals! With the experience provided in this compelling reference, you can sit down for the Linux Essentials Exam with confidence. An open source operating system, Linux is a UNIX-based platform that is freely updated by developers. The nature of its development means that Linux is a low-cost and secure alternative to other operating systems, and is used in many different IT environments. Passing the Linux Essentials Exam prepares you to apply your knowledge regarding this operating system within the workforce. * Access lessons that are organized by task, allowing you to quickly identify the topics you are looking for and navigate the comprehensive information presented by the book * Discover the basics of the Linux operating system, including distributions, types of open source applications, freeware, licensing, operations, navigation, and more * Explore command functions, including navigating the command line, turning commands into scripts, and more * Identify and create user types, users, and groups Linux Essentials, 2nd Edition is a critical resource for anyone starting a career in IT or anyone new to the Linux operating system.

Unboxing Android USB focuses on apps that use USB. This book covers everything starting from simple tasks like managing media with USB to complex tasks like Android ADB and developing application which exploit the potential of USB framework.With use cases that help developers build real world apps in real-time utilizing the advanced features of USB framework Unboxing Android USB tries to cover every single aspect of the app development cycle in totality. Unboxing Android USB helps you learn newly introduced android open accessory protocol with unique examples such as using USB Keyboard with Android device without USB host mode enabled and switching from MTP to MSC. The book is organized based on the USB functions, with each chapter explaining different USB classes available in Android. The functionalities are explained by starting from the USB specification followed by block diagrams that explain different blocks available in that USB class, followed by sequence diagram that elucidates flow of control and data. Each chapter has a unique sample Android application that uses the particular USB function.

This book constitutes the thoroughly refereed post-conference proceedings of the 12th International Conference on Wired/Wireless Internet Communication, WWIC 2014, held in Paris, France, during May 27-28, 2014. The 22 revised full papers presented were carefully reviewed and selected from numerous submissions. The papers are organized in topical sections on wireless and wired networks; resource management and next generation services; next generation services, network architecture and applications.

Troubleshooting Xcode is a handbook for software developers of all levels creating applications for iOS and OS X using both Objective-C and Swift. If you've struggled in the past to make Xcode work as expected, to solve problems that defy logic, and to understand Xcode's misleading or cryptic error messages and unexpected crashes, Troubleshoot ing Xcode is for you. Troubleshooting Xcode is great for the developer wanting to extend his or her knowledge about obscure problems and limitations involving the use of Xcode, Objective-C, and Swift as well as how to use automation to increase productivity and make some repetitive tasks easier.

This book constitutes the proceedings of the 23rd International Conference on Compiler Construction, CC 2014, which was held as part of the European Joint Conferences on Theory and Practice of Software, ETAPS 2014, which took place in Grenoble, France, in April 2014. The 10 full papers and 4 tool papers included in this volume were carefully reviewed and selected from 47 submissions; the book also contains one invited talk. The papers are organized in topical sections named: program analysis and optimization; parallelism and parsing and new trends in compilation.

Practical Linux Infrastructure teaches you how to use the best open source tools to build a new Linux infrastructure, or alter an existing infrastructure, to ensure it stands up to enterprise-level needs. Each chapter covers a key area of implementation, with clear examples and step-by-step instructions. Using this book, you'll understand why scale matters, and what considerations you need to make. You'll see how to switch to using Google Cloud Platform for your hosted solution, how to use KVM for your virtualization, how to use Git, Postfix, and MySQL for your version control, email, and database, and how to use Puppet for your configuration management. For enterprise-level fault tolerance you'll use Apache, and for load balancing and high availability, you'll use HAProxy and Keepalived. For trend analysis you'll learn how to use Cacti, and for notification you'll use Nagios. You'll also learn how to utilize BIND to implement DNS, how to use DHCP (Dynamic Host Configuration Protocol), and how to setup remote access for your infrastructure using VPN and Iptables. You will finish by looking at the various tools you will need to troubleshoot issues that may occur with your hosted infrastructure. This includes how to use CPU, network, disk and memory management tools such as top, netstat, iostat and vmstat. Author Syed Ali is a senior site reliability engineering manager, who has extensive experience with virtualization and Linux cloud based infrastructure. His previous experience as an entrepreneur in infrastructure computing offers him deep insight into how a business can leverage the power of Linux to their advantage. He brings his expert knowledge to this book to teach others how to perfect their Linux environments. Become a Linux infrastructure pro with Practical Linux Infrastructure today.

Scientific Workflow has seen massive growth in recent years as science becomes increasingly reliant on the analysis of massive data sets and the use of distributed resources. The workflow programming paradigm is seen as a means of managing the complexity in defining the analysis, executing the necessary computations on distributed resources, collecting information about the analysis results, and providing means to record and reproduce the scientific analysis.

Workflows for e-Science presents an overview of the current state of the art in the field. It brings together research from many of leading computer scientists in the workflow area and provides real world examples from domain scientists actively involved in e-Science. The computer science topics addressed in the book provide a broad overview of active research focusing on the areas of workflow representations and process models, component and service-based workflows, standardization efforts, workflow frameworks and tools, and problem solving environments and portals.

The topics covered represent a broad range of scientific workflow and will be of interest to a wide range of computer science researchers, domain scientists interested in applying workflow technologies in their work, and engineers wanting to develop workflow systems and tools. As such Workflows for e-Science is an invaluable resource for potential or existing users of workflow technologies and a benchmark for developers and researchers.

Ian Taylor is Lecturer in Computer Science at Cardiff University, and coordinator of Triana activities at Cardiff. He is the author of "From P2P to Web Services and Grids," also published by Springer.

Ewa Deelman is a Research Assistant Professor at the USC Computer Science Department and a Research Team Leader at the Center for Grid Technologies at the USC Information Sciences Institute.

Dennis Gannon is a professor of Computer Science in the School of Informatics at Indiana University. He is also Science Director for the Indiana Pervasive Technology Labs..

Dr Shields is a research associate at Cardiff and one of two lead developers for the Triana project.

With Windows 10 arriving later in 2015, many questions remain to be answered, both for businesses and home users. Will it provide the compatibility of Windows XP, and the usability of Windows 7? Will it banish forever the problems associated with Windows 8? In this book, Windows expert, author and MVP Mike Halsey answers the questions you have and details hidden and improved features that can revolutionize your security, productivity and user experience. Whether you're an IT professional considering or planning an upgrade to your company's PCs or a Windows enthusiast eager to find out if Microsoft has finally built a truly modern Windows experience, Windows 10 Primer has the answers to all your most important questions.

Advanced data management has always been at the core of efficient database and information systems. Recent trends like big data and cloud computing have aggravated the need for sophisticated and flexible data storage and processing solutions. This book provides a comprehensive coverage of the principles of data management developed in the last decades with a focus on data structures and query languages. It treats a wealth of different data models and surveys the foundations of structuring, processing, storing and querying data according these models. Starting off with the topic of database design, it further discusses weaknesses of the relational data model, and then proceeds to convey the basics of graph data, tree-structured XML data, key-value pairs and nested, semi-structured JSON data, columnar and record-oriented data as well as object-oriented data. The final chapters round the book off with an analysis of fragmentation, replication and consistency strategies for data management in distributed databases as well as recommendations for handling polyglot persistence in multi-model databases and multi-database architectures. While primarily geared towards students of Master-level courses in Computer Science and related areas, this book may also be of benefit to practitioners looking for a reference book on data modeling and query processing. It provides both theoretical depth and a concise treatment of open source technologies currently on the market.

Since its establishment in 1998, Microsoft Research Asia's trademark and long term commitment has been to foster innovative research and advanced education in the Asia-Pacific region. Through open collaboration and partnership with universities, government and other academic partners, MSRA has been consistently advancing the state-of-the-art in computer science. This book was compiled to record these outstanding collaborations, as Microsoft Research Asia celebrates its 10th Anniversary. The selected papers are all authored or co-authored by faculty members or students through collaboration with MSRA lab researchers, or with the financial support of MSRA. Papers previously published in top-tier international conference proceedings and journals are compiled here into one accessible volume of outstanding research. Innovation Together highlights the outstanding work of Microsoft Research Asia as it celebrates ten years of achievement and looks forward to the next decade of success.

Scheduling and multicriteria optimisation theory have been subject, separately, to numerous studies. Since the last twenty years, multicriteria scheduling problems have been subject to a growing interest. However, a gap between multicriteria scheduling approaches and multicriteria optimisation field exits. This book is an attempt to collect the elementary of multicriteria optimisation theory and the basic models and algorithms of multicriteria scheduling. It is composed of numerous illustrations, algorithms and examples which may help the reader in understanding the presented concepts. This book covers general concepts such as Pareto optimality, complexity theory, and general method for multicriteria optimisation, as well as dedicated scheduling problems and algorithms: just-in-time scheduling, flexibility and robustness, single machine problems, parallel machine problems, shop problems, etc. The second edition contains revisions and new material.

Think you have the next great iPad app idea? TheiPad Application Sketch Book is an essential tool for any aspiring iPad developer. This sketch book makes it easy to centralize and organize your ideas, featuring full-sized iPad templates to write on. Professionally printed on high-quality paper, it has a total of 150 gridded templates for you to draft ideas and doodle designs while providing ample room to make notes, and document the app name and screen name. Its flat binding and perforated pages make it ideally flexible for any use you might think of. This book is a must-have and an invaluable tool for bringing your next great iPad app idea to life What you'll learn Who this book is for

Any aspiring iPad developer.

With more than 60 practical and creative hacks, this book helps you turn Raspberry Pi into the centerpiece of some cool electronics projects. Want to create a controller for a camera or a robot? Set up Linux distributions for media centers or PBX phone systems? That's just the beginning of what you'll find inside "Raspberry Pi Hacks."

If you're looking to build either a software or hardware project with more computing power than Arduino alone can provide, Raspberry Pi is just the ticket. And the hacks in this book will give you lots of great ideas.Use configuration hacks to get more out of your PiBuild your own web server or remote print serverTake the Pi outdoors to monitor your garden or control holiday lightsConnect with SETI or construct an awesome Halloween costumeHack the Pi's Linux OS to support more complex projectsDecode audio/video formats or make your own music playerAchieve a low-weight payload for aerial photographyBuild a Pi computer cluster or a solar-powered lab

iOS 7 Development Recipes: A Problem-Solution Approach is your code reference and guide to developing solutions on the iPad, iPhone, and other iOS 7 SDK devices and platforms. This book provides in-depth code samples and discussions for scenarios that developers face every day. You'll find numerous examples of real-world cases that will enable you to build fully functional applications quickly and efficiently. The recipes included in this book are wide in scope and have been geared toward the professional developer. You'll find clear and concise code samples accompanying each recipe, and you will be presented with cutting-edge solutions that bring forth the best that the iOS 7 SDK has to offer. The recipes include: * Working with Auto Layout to build flexible user interfaces that adapt to different screen sizes * Building applications that incorporate multimedia * Building location-aware apps * Understanding best practices for application design and development You'll find this book to be an indispensable reference for all your iOS development.What you'll learn * How to make your apps truly stand out with multimedia * How to integrate social network services such as Twitter and Facebook into your apps * How to enhance your game apps with GameCenter * How to develop powerful apps with the latest Xcode * How to use Table Views and Collection Views in combination with Core Data to build powerful data-driven apps * How to build beautiful location-based apps with the new map engine Who this book is for This book is intended for developers familiar with the Objective-C programming language and with an interest in developing apps for the iPhone and iPad. While a basic knowledge of Objective-C is expected, developers at all levels of app development will benefit from this book.

Beginning Fedora Desktop: Fedora 18 Edition is a complete guide to using the Fedora 18 Desktop Linux release as your daily driver for mail, productivity, social networking, and more. Author and Linux expert Richard Petersen delves into the operating system as a whole and offers you a complete treatment of Fedora 18 Desktop installation, configuration, and use. You'll discover how to install Fedora 18 Desktop on any hardware, learn which applications perform which functions, how to manage software updates, tips and tricks for the GNOME 3 and KDE desktops, useful shell commands, and both the Fedora administration and network tools. Get the most out of Fedora 18 Desktop -- including free Office suites, editors, e-book readers, music and video applications and codecs, email clients, Web and FTP browsers, microblogging and IM applications -- with a copy of Beginning Fedora Desktop: Fedora 18 Edition at your side.What you'll learn * how to install Fedora 18 Desktop on any hardware * the available GUI choices, including KDE, GNOME, and alternative desktop environments * how to use word processors, spreadsheets, presentation, and e-mail software * how to maintain your system and back it up * how to participate in social networks using open source clients * and much moreWho this book is for Beginning Fedora Desktop: Fedora 18 Edition is for novice to intermediate users who are looking to install Fedora 18 as their primary computing environment. Table of Contents * Fedora 18 Introduction * Installation and Upgrade * Usage Basics: Login, Desktop, and Help * Installing and Updating Software: YUM, PackageKit, and RPM * Office Applications and Editors * Graphics and Multimedia * Mail (E-mail) and News * Internet Applications: Web and FTP * Social Networking: Microblogging, IM, VoIP, and Social Desktop * GNOME 3 * The K Desktop Environment: KDE * Shells * Additional Desktops * Fedora System Tools * System Administration * Network Configuration * Printing

Harlan Carvey has updated "Windows Forensic Analysis Toolkit," now in its fourth edition, to cover Windows 8 systems. The primary focus of this edition is on analyzing Windows 8 systems and processes using free and open-source tools. The book covers live response, file analysis, malware detection, timeline, and much more. Harlan Carvey presents real-life experiences from the trenches, making the material realistic and showing the why behind the how.

The companion and toolkit materials are hosted online. This material consists of electronic printable checklists, cheat sheets, free custom tools, and walk-through demos. This edition complements "Windows Forensic Analysis Toolkit, Second Edition," which focuses primarily on XP, and "Windows Forensic Analysis Toolkit, Third Edition," which focuses primarily on Windows 7.

This new fourth edition provides expanded coverage of many topics beyond Windows 8 as well, including new cradle-to-grave case examples, USB device analysis, hacking and intrusion cases, and "how would I do this" from Harlan's personal case files and questions he has received from readers. The fourth edition also includes an all-new chapter on reporting.
Complete coverage and examples of Windows 8 systems Contains lessons from the field, case studies, and war stories Companion online toolkit material, including electronic printable checklists, cheat sheets, custom tools, and walk-throughs