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This practical book provides a step-by-step approach to testing mission-critical applications for scalability and performance before they're deployed -- a vital topic to which other books devote one chapter, if that. Businesses today live and die by network applications and web services. Because of the increasing complexity of these programs, and the pressure to deploy them quickly, many professionals don't take the time to ensure that they'll perform well and scale effectively. The Art of Application Performance Testing explains the complete life cycle of the testing process, and demonstrates best practices to help you plan, gain approval for, coordinate, and conduct performance tests on your applications. With this book, you'll learn to: Set realistic performance testing goals Implement an effective application performance testing strategy Interpret performance test results Cope with different application technologies and architectures Use automated performance testing tools Test traditional local applications, web-based applications, and web services (SOAs) Recognize and resolves issues that are often overlooked in performance tests Written by a consultant with 30 years of experience in the IT industry and over 12 years experience with performance testing, this easy-to-read book is illustrated with real-world examples and packed with practical advice. The Art of Application Performance Testing thoroughly explains the pitfalls of an inadequate testing strategy and offers you a robust, structured approach for ensuring that your applications perform well and scale effectively when the need arises. "Ian has maintained a vendor-agnostic methodology beautifully in this material. The metrics and graphs, along with background information provided in his case studies, eloquently convey to the reader, 'Methodology above all, tools at your discretion...' Ian's expertise shines through throughout the entire reading experience."-- Matt St. Onge, Enterprise Solution Architect, HCL Technologies America / Teradyne
Because performance is paramount today, this thoroughly updated guide shows you how to test mission-critical applications for scalability and performance before you deploy them—whether it’s to the cloud or a mobile device. You’ll learn the complete testing process lifecycle step-by-step, along with best practices to plan, coordinate, and conduct performance tests on your applications. Set realistic performance testing goals Implement an effective application performance testing strategy Interpret performance test results Cope with different application technologies and architectures Understand the importance of End User Monitoring (EUM) Use automated performance testing tools Test traditional local applications, web applications, and web services Recognize and resolves issues often overlooked in performance tests Written by a consultant with over 15 years’ experience with performance testing, The Art of Application Performance Testing thoroughly explains the pitfalls of an inadequate testing strategy and offers a robust, structured approach for ensuring that your applications perform well and scale effectively when the need arises.
A step-by-step approach to testing mission-critical applications for scalability and performance before they're deployed. this practical book explains the complete life cycle of the testing process, and demonstrates best practices to help programmers plan, gain approval for, coordinate, and conduct performance tests on their applications.
Use this book to prepare for the ISTQB® Certified Tester Foundation Level Performance Testing exam. The book has been designed to follow the ISTQB syllabus, covering all of the syllabus learning objectives, with additional reference material extending beyond the syllabus. The book covers an overall methodology for managing and conducting performance testing. Performance testing has often been considered a black art. In many organizations, perhaps an individual or a small group of technical staff or contractors is given the task of "load testing" an extended system, network, or application. Performance testing is like any other form of testing. It follows a defined test process that is similar to other test types. It utilizes a disciplined approach to the definition of requirements and user stories, the creation of test conditions, test cases, and test procedures. It establishes measurable goals against which the success or failure of the testing can be judged. It also requires (and this cannot be stressed highly enough) a definition and recognition of performance test failures. Readers will gain the knowledge with both content and practice questions to prepare them for the ISQTB Performance Testing exam. The book covers the performance test types, the performance testing methodology, and the steps to plan, create, and execute performance tests and analyze the results. You will: Understand the basic concepts of performance efficiency and performance testing Define performance risks, goals, and requirements to meet stakeholder needs and expectations Understand performance metrics and how to collect them Develop a performance test plan for achieving stated goals and requirements Conceptually design, implement, and execute basic performance tests Analyze the results of a performance test and communicate the implications to stakeholders Explain the process, rationale, results, and implications of performance testing to stakeholders Understand the categories and uses for performance tools and criteria for their selection Determine how performance testing activities align with the software life cycle .
Use this in-depth guide to correctly design benchmarks, measure key performance metrics of .NET applications, and analyze results. This book presents dozens of case studies to help you understand complicated benchmarking topics. You will avoid common pitfalls, control the accuracy of your measurements, and improve performance of your software. Author Andrey Akinshin has maintained BenchmarkDotNet (the most popular .NET library for benchmarking) for five years and covers common mistakes that developers usually make in their benchmarks. This book includes not only .NET-specific content but also essential knowledge about performance measurements which can be applied to any language or platform (common benchmarking methodology, statistics, and low-level features of modern hardware). What You'll LearnBe aware of the best practices for writing benchmarks and performance testsAvoid the common benchmarking pitfalls Know the hardware and software factors that affect application performanceAnalyze performance measurements Who This Book Is For .NET developers concerned with the performance of their applications
I have been asked for years, where do you find high value software performance professionals. Most people, when they think of a software performance professional, immediately think of a tester. It is worthwhile to stop and consider what is the desired outcome of that effort. The answer will often determine the type of individual you need to solicit on the open market: An architect, an engineer, or a tester.This book is targeted at those who need to recruit, to interview, and to objectively evaluate the capabilities of different classes of performance professionals even if you do not have a mature performance testing team that can evaluate the candidate.You will gain insight into the foundational skills shared by high value performance professionals & how to interview for these skills.This book will save you from at least one bad hire.-James Pulley
A practical handbook on evaluating muscular strength and function, Daniels and Worthingham's Muscle Testing: Techniques of Manual Examination and Performance Testing, 9th Edition makes it easy to understand and master procedures in manual muscle testing and performance testing. Clear, illustrated instructions provide a guide to patient positioning, direction of motion, and direction of resistance. In addition to muscle testing of normal individuals and others with weakness or paralysis, this edition includes new coverage of alternative strength tests and performance tests for older adults and others with functional decline (such as the inactive and obese). Written by educators Helen J. Hislop, Dale Avers, and Marybeth Brown, this classic physical therapy reference now features an Evolve companion website with video clips demonstrating key muscle testing techniques. Drawings and arrows along with clear written directions make it easy to understand and perform muscle testing procedures, allowing you to assess deficits in strength, balance, and range of motion. More than 600 illustrations clearly show testing sequences, muscle anatomy, and muscle innervation. Video clips of over 100 muscle tests on the Evolve companion website demonstrate the art and technique of muscle testing in a clinical setting. Details of muscle anatomy and innervation help in linking muscle topography with function. Helpful Hints and Substitutions boxes provide additional tips and highlight muscle substitutions that may occur during a test to ensure greater accuracy in testing. A constant reference number clearly identifies each muscle in the body, indexed in the Alphabetical List of Muscles by Region as well as in the Ready Reference Anatomy Manual on Evolve, to speed cross-referencing and help you quickly identify any muscle.
Advanced Characterization and Testing of Textiles explores developments in physical and chemical testing and specific high-performance tests relating to textiles. The book introduces the principles of advanced characterization and testing, including the importance of performance-based specifications in the textiles industry. Chapters are organized by textile properties, providing in-depth coverage of each characteristic. Tests for specific applications are addressed, with the main focus on high-performance and technical textiles. - Focuses on advanced testing methods for technical and high-performance textiles, covering state-of-the-art technology in its field - Details specific textile properties and associated testing for each characteristic
This handbook is for anyone responsible for a Web site, from the person running a personal site off a Linux PC at home up to large corporate site managers who wants to improve their performance right now.