Overview
- Provides a brief Java performance curriculum with 12 run-on-your-own-machine performance puzzles, all aimed at making you dramatically more productive in getting to root cause
- Gives expert load generation advice, including how to determine the precise load necessary to test a given application's scalability
- Shows how to detect memory leaks in minutes without a heap dump, and without restarting the suspect JVM
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Table of contents (13 chapters)
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Front Matter
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Getting Started with Performance Tuning
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Front Matter
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Creating Load Scripts and Load Testing
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Front Matter
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The P.A.t.h. Checklist and Performance Troubleshooting
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Front Matter
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Back Matter
Keywords
About this book
Performance problems are not always localized to Java, but often fall into the realms of database access and server load. This book gives attention to both of these issues through examples
showing how to identify repetitive SQL, and identify architecture-wide performance problems ahead of production rollout. Learn how to apply load like an expert, and determine how much load to apply to determine whether your system scales. Included are walk-throughs of a dozen server-side performance puzzles that are ready to run on your own machine. Following these examples helps you learn to:
- Assess the performance health of four main problems areas in a Java system: The P.A.t.h. Checklist presents each area with its own set of plug-it-in-now tools
- Pinpoint the code at fault for CPU and other bottlenecks without a Java profiler
- Find memory leaks in just minutes using heapSpank, the author's open-source leak detector utility that is freely available from heapSpank.org
The repeatable method provided in this book is an antidote to lackluster average response times that are multi-second throughout the industry. This book pro
vides a long absent, easy-to-follow, performance training regimen that will benefit anyone programming in Java.
What You'll Learn
- Avoid the 6 most common ways to mess up a load test
- Determine the exact number of threads to dial into the load generator to test your system's scalability
- Detect the three most common SQL performance anti-patterns
- Measure network response times of calls to back-end systems ('alien systems')
- Identify whether garbage collection performance is healthy or unhealthy and whether delays are caused by problems in the old or new generation, so you know which generation needs to be adjusted
Who This Book Is For
Intermediate and expert Java developers and architects. Java experts will be able to update their skill set with the latest and most productive, open-source Java performance tools. IntermediateJava dev
elopers are exposed to the most common performance defects that repeatedly show up in Java applications, ones that account for the bulk of slow-performing systems. Experts and intermediates alike will benefit from the chapters on load generation.
Authors and Affiliations
About the author
Erik Ostermueller is a Java architect who is passionate about performance engineering. He has spent the last 10 years leading international performance engineering teams, tuning high-throughput Java financial systems in North and South America, Europe and Asia. In 2011, he presented a paper entitled “How to Help Developers (Finally) Find Their Own Performance Defects” at the Computer Measurement Group’s annual conference, where he won “Best Paper” and the “Mullen Award” for best speaker. The proceeds of this award financed an eight-city speaking tour in the US, Canada, the UK, and Italy.
Erik is the technical lead for the Performance Center of Excellence at FIS Global. He is the founder of heapSpank.org, wuqiSpank.org, and a contributor to JMeter-Plugins.org and other open source projects. He lives in Little Rock, Arkansas and plays soccer, tennis, and the piano.Bibliographic Information
Book Title: Troubleshooting Java Performance
Book Subtitle: Detecting Anti-Patterns with Open Source Tools
Authors: Erik Ostermueller
DOI: https://doi.org/10.1007/978-1-4842-2979-8
Publisher: Apress Berkeley, CA
eBook Packages: Professional and Applied Computing, Apress Access Books, Professional and Applied Computing (R0)
Copyright Information: Erik Ostermueller 2017
Softcover ISBN: 978-1-4842-2978-1Published: 01 October 2017
eBook ISBN: 978-1-4842-2979-8Published: 30 September 2017
Edition Number: 1
Number of Pages: XXVI, 194
Number of Illustrations: 6 b/w illustrations, 87 illustrations in colour
Topics: Java