- Paperback: 442 pages
- Publisher: O'Reilly Media; 1 edition (8 Sep 2000)
- Language English
- ISBN-10: 0596000154
- ISBN-13: 978-0596000158
- Product Dimensions: 23 x 18 x 3.4 cm
- Average Customer Review: 4.3 out of 5 stars See all reviews (7 customer reviews)
- Amazon Bestsellers Rank: 993,554 in Books (See Top 100 in Books)
- See Complete Table of Contents
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Product Description
Amazon.co.uk Review
Java applications are often seen as slower than native code apps--it's part of the cost of platform independence and ease of use. However, there are speed-up techniques modern coders ignore with fast CPUs and huge memories to cover for them.
Java Performance Tuning covers techniques applicable to coding in any programming language with those specific to not just Java but particular versions. Shirazi starts with an illuminating discussion of real speed versus the user's perception of speed, threading, caching, streaming, bench-marking and choosing what to measure.
Examples of generally applicable speed-up techniques include obvious examples such as moving unnecessary calculations to the outside of loops while Java-specific techniques include avoiding garbage collection. Some techniques are also applicable with other object-oriented languages; for example, reusing objects instead of recreating them.
The text is clear and readable. Everything discussed is shown as code examples with percentage timings to give an idea of the gains you can make. There is also extensive discussion on choosing algorithms.
Shirazi's coverage of distributed programs is particularly enlightening as they suffer from different bottlenecks, at least from a user point of view. Making a user feel the program is faster is often more a matter of retaining the user's attention than actually increasing speed--the Internet, for example, is unlikely to respond to code enhancements.
Because a better understanding of the way your programs work also makes for greater memory efficiency, more robustness and a better user experience--as well as more speed--this book will dramatically improve your programs. --Steve Patient
Thomas Paul, javaranch.com, March 2003
I doubt that there is another Java book on the market with as many 'WOW!' moments in it. Buy it and watch your code zoom.
--This text refers to an alternate
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Customer Reviews
Most Helpful Customer Reviews
7 of 7 people found the following review helpful
Format:Paperback
A classic O'Reilly book. Highly informative, an excellent tutorial and a great book to dip into when you have specific problems. Gives solid example code and comparison timings across a range of JDK's. Buy this book even if you don't have a performance problem.
12 of 13 people found the following review helpful
Format:Paperback
A very well structured book, with examples and performance checklists. It covers tuning strategy, tools, techniques that range from object recycling(pooling), improovements by rewriting JDK classes, compile-time optimisations, loops and switch optimisation, sorting, load-balancing, thread pooling...
And also the well know problem of String vs. StringBuffer, float/integer to String faster conversion; Stream buffering and StreamTokenizer drawbacks.
All examples are tested on several JDK versions with or without JIT or HotSpot.
It is a wondeful book how to create performant java applications in an elegant way and not by hacking the code.
3 of 3 people found the following review helpful
Format:Paperback
Once the business rules have been settled and all that is left is to tune the code, then the fun starts. Like a race car mechanic trying to squeeze out a couple of extra MPH from a race car, the most fun in programming is to try squeeze out extra performance from some code. A book on performance tuning should understand that and make the topic fun. Reading this book it is clear that Jack Shirazi loves to tune code. He has done an incredible amount of detailed research on different JVMs to determine exactly how to make Java perform. But he is also practical. He explains how to find performance problems, which exact areas to concentrate on, and which areas to ignore. After reading this book you won't waste your time on areas of code that can't be easily optimized and instead you'll know how to concentrate on those places where you can get the most bang. The book has been updated from the earlier edition to bring all the information up to date with the latest JVMs. Best of all, an additional 250 pages has been added to the book covering J2EE including Servlets, JSPs, EJBs, and JDBC. "Java Performance Tuning" is a programmer's book. You are guaranteed to learn a lot of very neat and useful tricks. I doubt that there is another Java book on the market with as many "WOW!" moments in it. Buy it and watch your code zoom.
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Most Recent Customer Reviews
Awesome book
This is an excellent book, with something like 300 tuning techniques covered. Some techniques are more hairy than others, but the breadth and depth is astonishing. Read more
Published on 24 Jun 2004 by "bobmann2"
Disappointed
I never thought that I would feel so let down by an O’Reilly book. This one made me feel like "QinetiQ". Read more
Published on 3 Sep 2003 by Peter Stiles
Excellent coverage of a complex topic
You have been working on that Java application for two weeks and it's finally ready for testing. Your window for having the web site down is ten minutes but you aren't concerned. Read more
Published on 22 Jan 2003 by Thomas Paul
Good and concise book
I like this book... as author focused to solve general issues in real world to get the performance.
I like that the book provides information in a well laid out, structured... Read more
I like that the book provides information in a well laid out, structured... Read more
Published on 21 Jan 2003 by Manish Singla
Listmania!
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