Chapter 1. Basic Performance Lingo


Let's begin our discussion of performance with a quick review of key performance terminology. We say "key" because we use this terminology throughout the book. If you're new to performance, you should read this chapter thoroughly. If you're an experienced performance analyst, you should at least glance through it for new terms or to be sure you understand our use of the more ambiguous performance terms. This chapter acquaints you with the concepts and the specific performance "lingo" used to define the concepts. We begin by defining the most basic measurement terminology including load, throughput, and response time . Next, we explore the terminology for performance optimization, including path length, bottlenecks, and scalability .

The terminology used in performance analysis may be new to you, but you already know the underlying concepts from everyday life. In this chapter, we apply performance terminology to familiar experiences. We use analogies based on "brick and mortar" stores in our neighborhoods to describe performance concepts found in the virtual world of web site software. These analogies also demonstrate how performance terminology really describes everyday reality.



Performance Analysis for Java Web Sites
Performance Analysis for Javaв„ў Websites
ISBN: 0201844540
EAN: 2147483647
Year: 2001
Pages: 126

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