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Java 9 High Performance.

Author: Mayur Ramgir; Nick Samoylov
Publisher: Birmingham : Packt Publishing, 2017.
Edition/Format:   eBook : Document : EnglishView all editions and formats
Summary:
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  Read more...
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Genre/Form: Electronic books
Additional Physical Format: Print version:
Ramgir, Mayur.
Java 9 High Performance.
Birmingham : Packt Publishing, ©2017
Material Type: Document, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Mayur Ramgir; Nick Samoylov
ISBN: 9781787122307 1787122301 9781787120785 1787120783
OCLC Number: 1011201437
Notes: ""Chapter 4: Learning How to Use Profiling Tools""
Description: 1 online resource (391 pages)
Contents: ""Cover""; ""Title Page""; ""Copyright""; ""Credits""; ""About the Authors""; ""About the Reviewer""; ""www.PacktPub.com""; ""Customer Feedback""; ""Table of Contents""; ""Preface""; ""Chapter 1: Learning Java 9 Underlying Performance Improvements""; ""Introducing the new features of Java 9""; ""Modular development and its impact""; ""Quick introduction to modules""; ""String operations performance""; ""Compact string""; ""The world of heap""; ""Why bother compressing strings?""; ""What did they do?""; ""What is the escape route?""; ""What is the performance gain?"" ""Indify String Concatenation""""Invokedynamic""; ""Storing interned strings in CDS archives""; ""Concurrency performance""; ""Compiler improvements""; ""Tiered Attribution""; ""Ahead-of-Time compilation""; ""Security manager improvements""; ""Graphics rasterizers""; ""Summary""; ""Chapter 2: Identifying Performance Bottlenecks""; ""CPU infrastructure""; ""Memory utilization""; ""Java heap""; ""Java stack""; ""Java heap versus stack memory""; ""Escape analysis""; ""Common memory problems""; ""OutOfMemory""; ""Mismanagement of object life cycle: java.lang. OutOfMemoryError: Java heap space"" ""Java.lang. OutOfMemoryError: GC Overhead limit exceeded""""java.lang. OutOfMemoryError: Permgen space""; ""java.lang. OutOfMemoryError: Metaspace""; ""java.lang. OutOfMemoryError: Unable to create new native thread""; ""java.lang. OutOfMemoryError: request size bytes for reason""; ""java.lang. OutOfMemoryError: Requested array size exceeds VM limit""; ""Out of memory: kill process or sacrifice child""; ""StackOverFlow""; ""Database operations""; ""I/O operations""; ""Network operations""; ""WebSocket Client API""; ""Summary""; ""Chapter 3: Learning How to Troubleshoot Code"" ""Measuring performance""""Performance checklist""; ""Basic principles of troubleshooting""; ""Why some developers find troubleshooting difficult?""; ""Setting up the environment for troubleshooting""; ""Importance of error handling""; ""A basic try-catch-finally block and its usages""; ""What are try-catch-finally blocks?""; ""Usage of try-catch-finally blocks""; ""Mistakes programmers make when using error handling""; ""Why swallowing exception is bad?""; ""Use of logging""; ""Logging vs Debugging""; ""What are the main components?""; ""How to do logging?"" ""What logging frameworks are available?""""Java Util Logging""; ""Log4j 2""; ""Logback""; ""Performance""; ""Support""; ""Ease of Use""; ""Best use case for logging""; ""Analyzing thread dump""; ""What is a thread dump?""; ""Benefits of thread dump analysis""; ""How to collect a thread dump""; ""How to analyze a thread dump""; ""Best practices""; ""Analyzing heap dump""; ""What is a heap dump""; ""Benefits of analyzing heap dumps""; ""When do you analyze a heap dump""; ""How to collect heap dump""; ""How to analyze heap dump""; ""Best practices""; ""Summary""

Abstract:

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. Downloading the example code for this book. You can download the example code files for all Packt books you have purchased from your account at http://www.PacktPub.com. If you purchased this book elsewhere, you can visit http://www.PacktPub.com/support and register to have the code file.

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