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Java 9 High Performance

You're reading from   Java 9 High Performance Practical techniques and best practices for optimizing Java applications through concurrency, reactive programming, and more

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Product type Paperback
Published in Nov 2017
Publisher Packt
ISBN-13 9781787120785
Length 398 pages
Edition 1st Edition
Languages
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Authors (2):
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 Ramgir Ramgir
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Ramgir
Nick Samoylov Nick Samoylov
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Nick Samoylov
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Table of Contents (17) Chapters Close

Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface
1. Learning Java 9 Underlying Performance Improvements FREE CHAPTER 2. Identifying Performance Bottlenecks 3. Learning How to Troubleshoot Code 4. Learning How to Use Profiling Tools 5. Understanding Garbage Collection and Making Use of It 6. Optimizing Code with Microbenchmarking 7. Speeding Up JSON Generation 8. Tools for Higher Productivity and Faster Application 9. Multithreading and Reactive Programming 10. Microservices 11. Making Use of New APIs to Improve Your Code

The benefits of using the JMH


The JMH works as an open project that you may run in any JDK environment. It is designed to provide you with several library options of using different microbenchmarks. These benchmarks can measure throughput as well as the processing time performance of the various functions and code elements.

There are several benefits of using this approach of optimizing the code on a micro level. Some experts are not sure if microbenchmarks provide the right benefits, but careful use in important code sections is certainly beneficial.

One benefit that you receive as a programmer is the understanding of how your code is using the available machine resources. You get the answers of how the memory is storing your objects and how they are being lined up for processing through the right setup of microbenchmarks.

Microbenchmarks are also great at creating performance documentation for important code elements. You can set up customized harnesses in your programs by creating testing...

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