Stop-the-World Events: Why Your Application Pauses
Understand Stop-the-World events in the JVM. Learn why applications pause, how GC triggers them, performance impacts, and tuning strategies to reduce latency
All Tutorials
Curated Java + Spring Boot tutorials with real-world backend patterns and clean examples.
Minor vs Major GC: Young Generation and Old Generation Explained
Learn the differences between Minor and Major Garbage Collection in Java. Explore young vs old generation, GC algorithms, tuning, and performance tips
The JVM Garbage Collection Process: Reachability and Root Sets
Learn how JVM garbage collection works through reachability analysis and root sets. Understand GC fundamentals, algorithms, tuning, and best practices
What is Garbage Collection in Java? Concepts and Motivation
Understand Java garbage collection: concepts, motivation, algorithms, tuning, and best practices to optimize performance and memory efficiency in JVM apps
String Pool and Interning in JVM: How It Works
Learn how the JVM string pool and interning work. Explore memory optimization, performance benefits, pitfalls, and best practices for Java developers
Direct Memory and Off-Heap Memory in Java
Learn about direct memory and off-heap memory in Java. Explore how they work, benefits, pitfalls, JVM tuning, and real-world performance optimizations
Metaspace Explained: Evolution from PermGen to Metaspace
Understand the evolution from PermGen to Metaspace in the JVM. Learn why PermGen was replaced, how Metaspace works, and tuning strategies for production apps
Escape Analysis in the JVM: Stack Allocation of Objects
Learn how JVM escape analysis enables stack allocation of objects, reducing GC pressure, improving performance, and optimizing memory in Java applications
The Java Memory Model (JMM): Happens-Before and Synchronization Guarantees
Master the Java Memory Model (JMM): happens-before rules, synchronization guarantees, visibility, atomicity, and best practices for multithreaded Java apps
Understanding Java Threads in the JVM: Stack Frames and Thread Execution
Learn how Java threads work in the JVM, including stack frames, execution model, synchronization, and performance tuning for production-ready applications
Introduction to the JVM Memory Model: Heap, Stack, and Beyond
Learn JVM memory model internals: heap, stack, and beyond. Explore memory areas, GC behavior, tuning, and performance best practices for Java developers
How the JVM Interprets and JIT-Compiles Code
Learn how the JVM interprets and JIT-compiles bytecode for execution. Understand JVM internals, JIT optimizations, performance tuning, and real-world use cases