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Author: Matt Greencroft
Publisher: Multicode Ltd
ISBN:
Category : Computers
Languages : en
Pages : 198
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Book Description
The process to transition from being a new Java developer to a confident and competent coder is a difficult one. In this book, author and long-time Java trainer Matt Greencroft guides you through some of the topics that will help you make significant steps along this journey. It is packed with important topics that experienced programmers should know and understand, together with practical advice on how to tune your applications and the JVM to get the best possible performance. Rather than containing a theoretical, highly detailed understanding of the internals of the Java Virtual Machine, this book takes a practical approach. You’ll learn enough to get a good understanding of how the JVM works and how memory is managed in Java, how to make great coding choices, how to configure the JVM, and how to evaluate and benchmark different options to assess their performance metrics in a robust and manageable way. Whether you have an existing application with performance issues to address, have taken one of Matt’s courses and are selecting this book as supporting material, or are simply wanting to advance your career by becoming a better programmer, this book will give you lots of stills and practical experience.
Author: Matt Greencroft
Publisher: Multicode Ltd
ISBN:
Category : Computers
Languages : en
Pages : 198
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Book Description
The process to transition from being a new Java developer to a confident and competent coder is a difficult one. In this book, author and long-time Java trainer Matt Greencroft guides you through some of the topics that will help you make significant steps along this journey. It is packed with important topics that experienced programmers should know and understand, together with practical advice on how to tune your applications and the JVM to get the best possible performance. Rather than containing a theoretical, highly detailed understanding of the internals of the Java Virtual Machine, this book takes a practical approach. You’ll learn enough to get a good understanding of how the JVM works and how memory is managed in Java, how to make great coding choices, how to configure the JVM, and how to evaluate and benchmark different options to assess their performance metrics in a robust and manageable way. Whether you have an existing application with performance issues to address, have taken one of Matt’s courses and are selecting this book as supporting material, or are simply wanting to advance your career by becoming a better programmer, this book will give you lots of stills and practical experience.
Author: Maaike van Putten
Publisher: Packt Publishing Ltd
ISBN: 1803248890
Category : Computers
Languages : en
Pages : 146
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Book Description
Improve application performance by tuning, monitoring and profiling both the garbage collector and JVM Key FeaturesUnderstand the different parts of Java memory and the various garbage collectors so you can select your preferred oneExplore how memory management can help to effectively improve performanceLearn how to spot and avoid memory leaks to enhance application performanceBook Description Understanding how Java organizes memory is important for every Java professional, but this particular topic is a common knowledge gap for many software professionals. Having in-depth knowledge of memory functioning and management is incredibly useful in writing and analyzing code, as well as debugging memory problems. In fact, it can be just the knowledge you need to level up your skills and career. In this book, you'll start by working through the basics of Java memory. After that, you'll dive into the different segments individually. You'll explore the stack, the heap, and the Metaspace. Next, you'll be ready to delve into JVM standard garbage collectors. The book will also show you how to tune, monitor and profile JVM memory management. Later chapters will guide you on how to avoid and spot memory leaks. By the end of this book, you'll have understood how Java manages memory and how to customize it for the benefit of your applications. What you will learnUnderstand the schematics of debugging and how to design the application to perform wellDiscover how garbage collectors workDistinguish between various garbage collector implementationsIdentify the metrics required for analyzing application performanceConfigure and monitor JVM memory managementIdentify and solve memory leaksWho this book is for This book is for all levels of Java professionals, regardless of whether you're a junior or senior developer, a DevOps engineer, a tester, or the system admin of a Java application. If you currently don't have in-depth knowledge of Java memory, garbage collection, and/or JVM tuning, then this book will help you to take your Java skills to the next level.
Author: Jack Shirazi
Publisher: "O'Reilly Media, Inc."
ISBN: 0596003773
Category : Computers
Languages : en
Pages : 588
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Book Description
Java application performance is tied pretty heavily to the underlying Java Virtual Machine, and the new 1.4 version of Java has significant changes that mean previously used performance tips and strategies may no longer work. Significantly revised and expanded, this second edition not only covers Java 1.4, but adds new coverage of JDBC, NIO, Servlets, EJB and JavaServer Pages. Suitable for intermediate and advanced Java developers, this text also covers JDBC, RMI/CORBA, Servlets, JavaServer Pages and custom tag libraries, XML, internationalization, JavaMail, Enterprise JavaBeans and performance tuning. It should be a useful resource for teaching how to create a tuning strategy, how to use profiling tools to understand a program's behaviour, and how to avoid performance penalties from inefficient code, making them more efficient and effective. The result is code that's robust, maintainable and fast.
Author: Scott Oaks
Publisher: "O'Reilly Media, Inc."
ISBN: 1449363547
Category : Computers
Languages : en
Pages : 425
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Book Description
Coding and testing are often considered separate areas of expertise. In this comprehensive guide, author and Java expert Scott Oaks takes the approach that anyone who works with Java should be equally adept at understanding how code behaves in the JVM, as well as the tunings likely to help its performance. You’ll gain in-depth knowledge of Java application performance, using the Java Virtual Machine (JVM) and the Java platform, including the language and API. Developers and performance engineers alike will learn a variety of features, tools, and processes for improving the way Java 7 and 8 applications perform. Apply four principles for obtaining the best results from performance testing Use JDK tools to collect data on how a Java application is performing Understand the advantages and disadvantages of using a JIT compiler Tune JVM garbage collectors to affect programs as little as possible Use techniques to manage heap memory and JVM native memory Maximize Java threading and synchronization performance features Tackle performance issues in Java EE and Java SE APIs Improve Java-driven database application performance
Author: Benjamin J Evans
Publisher: "O'Reilly Media, Inc."
ISBN: 1492039276
Category : Computers
Languages : en
Pages : 449
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Book Description
Performance tuning is an experimental science, but that doesn’t mean engineers should resort to guesswork and folklore to get the job done. Yet that’s often the case. With this practical book, intermediate to advanced Java technologists working with complex technology stacks will learn how to tune Java applications for performance using a quantitative, verifiable approach. Most resources on performance tend to discuss the theory and internals of Java virtual machines, but this book focuses on the practicalities of performance tuning by examining a wide range of aspects. There are no simple recipes, tips and tricks, or algorithms to learn. Performance tuning is a process of defining and determining desired outcomes. And it requires diligence. Learn how Java principles and technology make the best use of modern hardware and operating systems Explore several performance tests and common anti-patterns that can vex your team Understand the pitfalls of measuring Java performance numbers and the drawbacks of microbenchmarking Dive into JVM garbage collection logging, monitoring, tuning, and tools Explore JIT compilation and Java language performance techniques Learn performance aspects of the Java Collections API and get an overview of Java concurrency
Author: Scott Oaks
Publisher: O'Reilly Media
ISBN: 1492056081
Category : Computers
Languages : en
Pages : 451
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Book Description
Coding and testing are generally considered separate areas of expertise. In this practical book, Java expert Scott Oaks takes the approach that anyone who works with Java should be adept at understanding how code behaves in the Java Virtual Machine—including the tunings likely to help performance. This updated second edition helps you gain in-depth knowledge of Java application performance using both the JVM and the Java platform. Developers and performance engineers alike will learn a variety of features, tools, and processes for improving the way the Java 8 and 11 LTS releases perform. While the emphasis is on production-supported releases and features, this book also features previews of exciting new technologies such as ahead-of-time compilation and experimental garbage collections. Understand how various Java platforms and compilers affect performance Learn how Java garbage collection works Apply four principles to obtain best results from performance testing Use the JDK and other tools to learn how a Java application is performing Minimize the garbage collector’s impact through tuning and programming practices Tackle performance issues in Java APIs Improve Java-driven database application performance
Author: Charlie Hunt
Publisher: Prentice Hall
ISBN: 0137142528
Category : Computers
Languages : en
Pages : 717
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Book Description
This is the first one-stop guide to identifying, isolating, and fixing Java performance issues on multicore and multiprocessor platforms.
Author: Mayur Ramgir
Publisher: Packt Publishing Ltd
ISBN: 1787122301
Category : Computers
Languages : en
Pages : 391
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Book Description
Best practices to adapt and bottlenecks to avoid About This Book Tackle all kinds of performance-related issues and streamline your development Master the new features and new APIs of Java 9 to implement highly efficient and reliable codes Gain an in-depth knowledge of Java application performance and obtain best results from performance testing Who This Book Is For This book is for Java developers who would like to build reliable and high-performance applications. Prior Java programming knowledge is assumed. What You Will Learn Work with JIT compilers Understand the usage of profiling tools Generate JSON with code examples Leverage the command-line tools to speed up application development Build microservices in Java 9 Explore the use of APIs to improve application code Speed up your application with reactive programming and concurrency In Detail Finally, a book that focuses on the practicalities rather than theory of Java application performance tuning. This book will be your one-stop guide to optimize the performance of your Java applications. We will begin by understanding the new features and APIs of Java 9. You will then be taught the practicalities of Java application performance tuning, how to make the best use of garbage collector, and find out how to optimize code with microbenchmarking. Moving ahead, you will be introduced to multithreading and learning about concurrent programming with Java 9 to build highly concurrent and efficient applications. You will learn how to fine tune your Java code for best results. You will discover techniques on how to benchmark performance and reduce various bottlenecks in your applications. We'll also cover best practices of Java programming that will help you improve the quality of your codebase. By the end of the book, you will be armed with the knowledge to build and deploy efficient, scalable, and concurrent applications in Java. Style and approach This step-by-step guide provides real-world examples to give you a hands-on experience.
Author: Charlie Hunt
Publisher: Prentice Hall
ISBN: 0132905248
Category : Computers
Languages : en
Pages : 717
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Book Description
“The definitive master class in performance tuning Java applications...if you love all the gory details, this is the book for you.” –James Gosling, creator of the Java Programming Language Improvements in the Java platform and new multicore/multiprocessor hardware have made it possible to dramatically improve the performance and scalability of Java software. JavaTM Performance covers the latest Oracle and third-party tools for monitoring and measuring performance on a wide variety of hardware architectures and operating systems. The authors present dozens of tips and tricks you’ll find nowhere else. You’ll learn how to construct experiments that identify opportunities for optimization, interpret the results, and take effective action. You’ll also find powerful insights into microbenchmarking–including how to avoid common mistakes that can mislead you into writing poorly performing software. Then, building on this foundation, you’ll walk through optimizing the Java HotSpot VM, standard and multitiered applications; Web applications, and more. Coverage includes Taking a proactive approach to meeting application performance and scalability goals Monitoring Java performance at the OS level in Windows, Linux, and Oracle Solaris environments Using modern Java Virtual Machine (JVM) and OS observability tools to profile running systems, with almost no performance penalty Gaining “under the hood” knowledge of the Java HotSpot VM that can help you address most Java performance issues Integrating JVM-level and application monitoring Mastering Java method and heap (memory) profiling Tuning the Java HotSpot VM for startup, memory footprint, response time, and latency Determining when Java applications require rework to meet performance goals Systematically profiling and tuning performance in both Java SE and Java EE applications Optimizing the performance of the Java HotSpot VM Using this book, you can squeeze maximum performance and value from all your Java applications–no matter how complex they are, what platforms they’re running on, or how long you’ve been running them.
Author: Ching-Han Yu
Publisher: Open Dissertation Press
ISBN: 9781361434680
Category :
Languages : en
Pages :
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Book Description
This dissertation, "Memory Management Strategies to Improve the Space-time Performance of Java Programs" by Ching-han, Yu, 余靜嫺, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstractofthesisentitled "MemoryManagementStrategiestoImprovethe Space-TimePerformanceofJavaPrograms" Submittedby ChingHanYU forthedegreeofDoctorofPhilosophy atTheUniversityofHongKong inApril2006 Java is popular. However, when using Java's garbage collection (GC) func- tions, the space-time performance of Java programs could suffer. Memory space can be traded for time performance or vice versa, but this might not al- waysworkbecauseoftheproliferationofnewsystemanddevicetypesnowa- days. Despite the increasing speed of processing hardware, the performance ofgarbage-collected systemsisstillaproblem. GC cannot be separated from the rest of the memory management sys- tem. Inthisresearch, weintroduceanewmemorymanagementsystem, called STEMA, which provides better cache locality and reduced memory fragmen- tation to improve the total execution time and space requirement of Java pro- grams. STEMA focuses on frequently instantiated types, called prolific types, for object allocation and co-location decisions. STEMA identifies prolific types on-the-fly with a low overhead online type sampling mechanism so that the resultscanbeusedimmediatelytoimprovetheperformanceofmemoryman- agement functions. STEMA co-locates objects of prolific types in a special reusable memory space to improve the cache locality of Java programs. The idea of co-location is based on the observation that objects of the same type are more likely to be accessed together during program execution. STEMAii uses the past to predict the future-it monitors the memory blocks allocated toeachprolifictypeandretainsasuitableamountofreturnedmemoryblocks forefficientfutureallocationofobjectsofthetype. Reusingofpreviouslyused butretainedblocksreducesthecostofallocation. Weevaluate STEMA with 15benchmarks. Experimental results show that STEMA performs better than the mark-sweep collector, the copying mark- sweep hybrid collector and the semispace collector (included in the MMTk of the Jikes RVM) on average over all heap ranges. STEMA also achieves a better space-time performance than the generational collector in cases where theheapisrelativelysmall. The performance of garbage-collected systems by and large is application dependent. Thus, we also propose an offline profiling framework that can be used to effectively expose the behavior and properties of Java programs. Us- ing the framework, we have identified 10 properties of prolific type objects. STEMAisdesignedbasedontheseproperties. Wehavealsodiscoveredsome object properties which are useful for other memory management optimiza- tions. (Anabstractofexactly371words) DOI: 10.5353/th_b3703156 Subjects: Memory management (Computer science) Garbage collection (Computer science) Java (Computer program language)
