Analyzing Computer Systems Performance, With Perl, PDQ
by Neil J. Gunther

Book Title Analyzing Computer Systems Performance: With Perl: PDQ
Author Neil J. Gunther
Edition 1st Edition
ISBN-13 978-3642225826
Publisher Springer
URL Amazon Google
Course CS721 - Network Performance Evaluation
Instructor Dr. Junaid Qadir

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

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Fundamentals of Performance Evaluation of Computer and Telecommunications Systems by Mohammed S. Obaidat, Noureddine A. Boudriga High Performance TCP/IP Networking by Mahbub Hassan, Raj Jain High-Speed Networks and Internets: Performance and Quality of Service by William Stallings How to Measure Anything: Finding the Value of Intangibles in Business by Douglas W. Hubbard Internet Measurement: Infrastructure, Traffic and Applications by Mark Crovella, Balachander Krishnamurthy
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