O'Reilly logo

High-Performance IT Services by Terry Critchley

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 1

What Is Performance?

Introduction

In this book, we will look at the often misunderstood, often neglected topic of computer performance—what it is, what is good and bad performance, and what factors affect the performance of a computer system or systems. The subject of queues is central to understanding the subject of performance, so we will spend some time covering this, but only at a high level. We shall also examine the value of relying too heavily on queuing theory in performance matters, especially prediction via models.

We will examine the performance characteristics of computer systems and networks, the “glue” between systems, which can have a marked effect on the performance of online applications, especially those that involve ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required