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Oracle JRockit: The Definitive Guide Paperback – June 1, 2010
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Top Customer Reviews
This is a book for Java developers who take their craft seriously and want to open the black box beneath them and make friends with the mystical creature that resides inside. This is a book for Java administrators who want hands-on tips on how to make their life easier and their applications run better and faster. This is a book for the computer science geek who simply needs to know how all the magic is done.
The first part of the book opens up the JVM, pulls out the parts and puts them on display. These chapters describe code generation, memory management, threads and locks, both in general and in the specific example of the JRockit JVM. This is more than a whitepaper on JRockit internals, this is a complete schoolbook in JVMs. With each chapter you also get pointers for what to do and especially what not to do in order to work with the black box rather than against it.
After a chapter on benchmarking and tuning comes the probably most comprehensive guide available to the JRockit tools - JRockit Mission Control and JRCMD. Plenty of screenshots and example outputs take you through the tools, how to use them and even how to extend them.Read more ›
This book would be of minimal value to a new Java programmer, it's just too deep. The more experienced Java programmer will benefit from this book, even if the reader isn't a JRockit user. (JRockit has recently been made freely available, and under a good license.) I'd recommend this book for any serious Java programmer.
As usual, I start with a short introduction of the authors. In this special case, I feel this is very important to understand the book. Both started out with Appeal Virtual Machines where they were founders. This was the company, which initially developed JRockit. Marcus Lagergren holds a M.Sc. in computer science from the Royal Institute of Technology in Stockholm, Sweden. He has a background in computer security but has worked with runtimes since 1999. Marcus has been team lead and architect for the JRockit code generators and has been involved in pretty much every other aspect of the JRockit JVM internals. Since 2007 Marcus works for Oracle on fast Virtualization technology.
Marcus Hirt is currently working for Oracle as Team Lead, Engineering Manager and Architect for the JRockit Mission Control team. Marcus has been an appreciated speaker on Oracle Open World, eWorld, BEAWorld, EclipseCon, Nordev and Expert Zone Developer Summit, and has contributed JRockit related articles and webinars to the JRockit community. Marcus Hirt got his M.Sc. education in computer science from the Royal Institute of Technology in Stockholm.
Java developers are always on the lookout for better ways to analyze application behavior and gain performance.Read more ›
Apart from JVM itself, book covers very comprehensively benchmarking, JRockit Mission Control, runtime analyzer and memory leak detector. And this is done really good. You get like 250 pages of knowledge related to code analysis, JRockit's tools usage and useful ideas from the authors.
What's important here is that JRockit is already one of the Oracle's platforms and even more important is the fact it will be partially integrated into Java 1.8. That said, it's worth to become more familiar with it if you consider yourself a serious Java developer.
Just one remark on the content. This book can be sometimes demanding as authors dive deep into assembler code level. So, it's rather recommended for engineers or people who are familiar with this kind of details.
Most Recent Customer Reviews
I do manage a good deal of servers running on jRockit, and I was always wondering what jRockit does for the Permanent Generation..? Read morePublished on July 30, 2010 by AKS
The target audience for Oracle JRockit: The Definitive Guide is developers and administrators with a few years of experience working with Java installations. Read morePublished on July 21, 2010 by G. Lohr