Java Memory Management : A Comprehensive Guide to Garbage Collection and JVM Tuning

Java Memory Management A Comprehensive Guide to Garbage Collection and JVM Tuning

Improve application performance by tuning, monitoring and profiling both the garbage collector and JVMKey Features:Understand 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 perfor...

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Detalles Bibliográficos
Otros Autores: Putten, Maaike van, author (author), Kennedy, Seán, author
Formato: Libro electrónico
Idioma:Inglés
Publicado: Birmingham : Packt Publishing, Limited 2022.
Edición:1st edition
Materias:
Java (Computer program language)
Memory management (Computer science)
Ver en Biblioteca Universitat Ramon Llull:https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009703295906719
Tabla de Contenidos:
  • Cover
  • Title Page
  • Copyright and Credit
  • Dedicated
  • Contributors
  • Table of Contents
  • Preface
  • Chapter 1: Different Parts of the Java Memory
  • Technical requirements
  • Understanding computer memory and Java memory
  • Computer memory
  • Accessing the main memory
  • Overview of the main memory
  • Java memory and the JVM
  • The JVM
  • Memory management and the JVM
  • Memory management before Java
  • Understanding the JVM's components for memory management
  • Runtime data area
  • Creating variables in Java
  • Primitives and reference types
  • Storing variables on the stack
  • Current frame and current method
  • Elements of the frame
  • Values on the stack
  • Primitives and wrapper classes
  • Creating objects in Java
  • Storing objects on the heap
  • Exploring the Metaspace
  • Summary
  • Chapter 2: Primitives and Objects in Java Memory
  • Technical requirements
  • Understanding primitives on the stack and heap
  • Storing objects on the heap
  • References
  • Objects
  • Understanding the differences between references and objects
  • Managing object references and security
  • Inspecting the escaping references issue
  • Summary
  • Chapter 3: Zooming in on the Heap Space
  • Exploring the different generations on the heap
  • Garbage collection roots
  • Learning how the spaces are used
  • Understanding the minor garbage collection algorithm
  • Demonstrating the minor garbage collection algorithm in action
  • Summary
  • Chapter 4: Freeing Memory with Garbage Collection
  • Technical requirements
  • Being eligible for GC
  • Marking by the garbage collector
  • Stop-the-world
  • Reference counting and islands of isolation
  • Sweeping by the garbage collector
  • Normal sweeping
  • Sweeping with compacting
  • Sweeping with copying
  • Exploring GC implementations
  • Generational GC
  • Serial GC
  • Parallel GC
  • CMS GC
  • G1 GC
  • Z GC
  • Monitoring GC
  • Summary
  • Chapter 5: Zooming in on the Metaspace
  • JVM usage of the Metaspace
  • Class loading
  • Releasing Metaspace memory
  • Metaspace runs out of memory
  • Metaspace size exceeds a JVM-set threshold
  • Garbage collection of the Metaspace
  • Summary
  • Chapter 6: Configuring and Monitoring the Memory Management of the JVM
  • Technical requirements
  • The basics of JVM tuning for memory management
  • Obtaining relevant metrics for memory management
  • Well-functioning memory
  • Normal latency
  • Level of throughput
  • Profiling Java applications
  • Profiling with jstat and jmap
  • Profiling with VisualVM
  • Tuning the configurations of the JVM
  • Tuning the heap size and thread stack size
  • Logging low memory
  • Tuning the Metaspace
  • Garbage collection tuning
  • Chapter 7: Avoiding Memory Leaks
  • Technical requirements
  • Understanding memory leaks
  • Spotting memory leaks
  • Heap memory footprint
  • Garbage collector activity
  • Heap dump
  • Avoiding memory leaks
  • Common pitfalls and how to avoid them
  • Summary
  • Index
  • Other Books You May Enjoy

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