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Oracle JRockit: The Definitive Guide Paperback – June 1, 2010

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Editorial Reviews

About the Author

Marcus Hirt is one of the founders of Appeal Virtual Machines, the company that created the Java Virtual Machine JRockit. He is currently working as Team Lead, Engineering Manager and Architect for the JRockit Mission Control team. In his spare time he enjoys coding on one of his many pet projects, composing music and scuba diving. 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. 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 Lagergren was one of the founding members of Appeal Virtual Machines, the company that developed JRockit. 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 lives in Stockholm with his wife and two daughters. He likes power tools, heavy metal and scuba diving.
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Product Details

  • Paperback: 588 pages
  • Publisher: Packt Publishing (June 1, 2010)
  • Language: English
  • ISBN-10: 1847198066
  • ISBN-13: 978-1847198068
  • Product Dimensions: 7.5 x 1.3 x 9.2 inches
  • Shipping Weight: 2.6 pounds (View shipping rates and policies)
  • Average Customer Review: 4.7 out of 5 stars  See all reviews (7 customer reviews)
  • Amazon Best Sellers Rank: #1,883,734 in Books (See Top 100 in Books)

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Most Helpful Customer Reviews

3 of 3 people found the following review helpful By Noora Peura on August 9, 2010
Format: Paperback
I have been involved in developing both the JRockit JVM and JRockit Mission Control for nine years and I am thus very familiar with the subject of this book. I already knew that the authors are brilliant engineers who know what they are talking about. This book also shows that they can talk about it well. Marcus and Marcus have managed to condense years of research and development into one book and translate it to "human readable" format. This book takes you under the hood and behind the scenes of JRockit. It digs deep and goes personal, explaining not only how the JVM works but also why.

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.
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2 of 2 people found the following review helpful By M. Eisele on November 22, 2010
Format: Paperback
This one was on my list of things to buy for quite some time. The only reason for this is simple: Oracle JRockit is one of the industry's highest performing Java Virtual Machines and I loved it's JIT everything approach since the beginning. I did not manage to do this, since it was published. But a few days ago, the digital edition arrived on my iPad and I finally found the time to read it. Sit back and relax. This is my personal view about the most stunning Java related book of 2010!

The Authors
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.

The Content
Java developers are always on the lookout for better ways to analyze application behavior and gain performance.
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4 of 5 people found the following review helpful By G. Lohr on July 21, 2010
Format: Paperback
The target audience for Oracle JRockit: The Definitive Guide is developers and administrators with a few years of experience working with Java installations. Anyone doing design or performance work with JRockit (or any other JVM, for that matter) should read this book. Those new to the subject will still gain much from the book and can expect to refer to it as they work with Java. A good grounding in Java and systems in general will allow the reader to fully utilize the material in this guide.

There are two main sections, the first 5 chapters on the JRockit JVM, and chapters 6 through 12 on the tool suite, JRockit Mission Control. In addition, a 13th chapter supplements the main body of the book with a discussion of new technology, emphasizing virtualization. A bibliography, glossary, and index round out the volume. The book is well made, clearly printed on stock of adequate weight and opacity. One could quibble that paper should be completely opaque, but that would mean a thicker, heavier book. This is already a substantial tome. The text is written with a straightforward conversational tone. American spellings are used throughout.

The content is well structured, with overview and background material to balance the technical detail. Emphasis throughout is placed on practical performance, with frequent notes that add illustrative anecdotes or insights gained from the authors' experience consulting on real systems.

Chapter 1, Getting Started is brief, covering such necessities as how to obtain the product and supported platforms. Notes on command-line options and interpretation of product version numbers provide useful background.
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