Download Performance Analysis and Reporting Ebook PDF

"The book focuses on application of performance analysis tools, not the theory of performance management. This text is an effective learning tool for students in analytical technique courses in public administration and policy programs. With other texts, students may learn about a statistical concept and calculation, but still don't understand the managerial context where the statistical tool applies. Consequently, they often fail to understand the managerial importance of statistical tools they learn, and worse, fail to recognize the correct tool to use when a managerial issue rises. This book corrects this problem by providing a managerial context that bridges statistical concepts and the managerial reality. The managerial context is performance management, in which performance data are presented, monitored, and analyzed. It is in this performance management context that the usefulness and applicability of statistical tools are illuminated for the learner."--BOOK JACKET.

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 www.perfdynamics.com

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