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Optimizing Java: Practical Techniques for Improving Jvm Application Performance
Currently, no books exist that focus on the practicalities of Java application performance tuning, as opposed to the theory and internals of Java virtual machines. This practical guide is the "missing link" that aims to move Java performance tuning from the realm of guesswork and folklore to an experimental science.Learn how to approach performance problems in an consistent and systematic wayResolve production performance issues by learning core Java performance topicsIdentify and resolve performance issues before encountering them in productionUnderstand the performance problems you encounter by learning the Java platform s internals"
600 pages, Paperback
First published April 25, 2016
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384 people want to read
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Displaying 1 - 13 of 13 reviews
June 5, 2018
I hadn't read the subtitle of “Optimizing Java� so I didn't know it was about JVM performance vs application level tricks. That turned out to be a pleasant surprise as I learned more.
I learned a good number of things. From the fun (CAFEDADA bytecode for modules) to the practical (tools for looking at JVM resources)
I've heard a talk about garbage collection a few times now. G1GC isn't easy to understand. Between reading this book and hearing one more talk on it, the concepts finally clicked.
I also learned a lot about modern hardware vs what I learned in school. And what book isn't made better by a ninja quote?
There were some API level concepts like why toUpperCase() is so complicated to implement. Along with warnings about premature optimization.
This is the first O'Reilly book that I've read that is in color. It definitely made the graphs better.
Disclosure: I received a copy of this book from the publisher in exchange for writing this review on behalf of CodeRanch.
I learned a good number of things. From the fun (CAFEDADA bytecode for modules) to the practical (tools for looking at JVM resources)
I've heard a talk about garbage collection a few times now. G1GC isn't easy to understand. Between reading this book and hearing one more talk on it, the concepts finally clicked.
I also learned a lot about modern hardware vs what I learned in school. And what book isn't made better by a ninja quote?
There were some API level concepts like why toUpperCase() is so complicated to implement. Along with warnings about premature optimization.
This is the first O'Reilly book that I've read that is in color. It definitely made the graphs better.
Disclosure: I received a copy of this book from the publisher in exchange for writing this review on behalf of CodeRanch.
November 29, 2018
Must read for anyone working with the JVM
July 21, 2018
Very good book to understand more deeply how JVM works internally, not only GC. Many books focus mainly on GC, but this one describes many more aspects of JVM internals (such as threading, JVM internal memory representation, bytecode, JIT compilers etc). Moreover, the book contains overview of many tools which can help you on a daily basis work with JVM. If you have read "Java Performance: The Definitive Guide" by Scott Oaks you won't regret reading this one as well.
January 4, 2021
A worthwhile dive into the low-level aspects of how the JVm works, with focus on garbage collection (GC) and how the virtual machine actually does stuff. A very interesting set of stuff although maybe a little too low-level for most Java programmers � I found it good for deeper understanding but lacking for how to write performance programs.
January 30, 2025
The closing sentences of the book provide a good summary:
"...this book is nowhere near complete, as there is simply so much to comprehend as a performance engineer. Nevertheless we hope that it has been a useful troduction to the world of Java performance and has provided some signposts dor readers on their own performance journey."
I definitely found my signposts.
"...this book is nowhere near complete, as there is simply so much to comprehend as a performance engineer. Nevertheless we hope that it has been a useful troduction to the world of Java performance and has provided some signposts dor readers on their own performance journey."
I definitely found my signposts.
December 29, 2022
The author has brought up some many aspects of improving jvm app. However, it is too much in terms of getting them into practice. Though, it's good to grasp some knowledge about GCC, all different kinds of flags, and some know-how on improving the performance of the system.
February 2, 2019
Very good book on Java performance. Well structured approach. Lots of insights on the Garbage Collectors and Just In Time Compiler.
February 28, 2019
Solid book on jvm mechanics, that every java programmer should be familiar with. It will take you months of watching infoq videos to collect same amount of information.
February 27, 2020
Great book. 6 stars.
April 24, 2023
Good. Give detail the internal working of JVM.
June 15, 2023
Quite in-depth for the average Java developer, but surprisingly enjoyable.
Would’ve assumed it might be a boring tome.
Well-explained Java concepts.
Would’ve assumed it might be a boring tome.
Well-explained Java concepts.
March 22, 2024
Best read about garbage collection internals and optimization
November 5, 2023
I loved this. I was sad when it ended, and am now searching for other books like this.
Displaying 1 - 13 of 13 reviews
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