. This is much needed, well written, and wise. " ? Professor Larry Bernstein, Stevens Institute of Technology A typical educational performance, and scalability onsoftware text This is the first book to take a quantitative approach to the subject of software performance and scalability. It brings together three unique perspectives to show how your product can be optimized and tuned for best performance and scalability: The Basics? It introduced the architecture of computer hardware and software that predetermine the performance and scalability of software products as well as the principles of measuring performance and scalability of a software product queuing theory? Help you learn the law of performance and queuing model to interpret the physics underlying the performance of software and scalability, coupled with the ready to apply the technique to improve performance and scalability of a software system API Profiling? show you how to design more efficient algorithms and achieve optimum performance and scalability, assisted by adopting a framework API profile (perfBasic) built on concept maps to trace the root causes of performance performance at the API level Software Performance and Scalability gives you a set of special skills that will enable you to design and build performance into your products with immediate, measurable improvements. This is the text anideal for university courses related to performance evaluation of computer and software and also can be used to supplement courses in computer organization or in queuing theory for upper-division and graduate students in computer science.