AbstractQueuedSynchronizer (AQS) Internals
A senior deep dive into the JVM's AbstractQueuedSynchronizer: exploring the CLH queue, LockSupport.park(), and CAS state transitions in ReentrantLock.
A senior deep dive into the JVM's AbstractQueuedSynchronizer: exploring the CLH queue, LockSupport.park(), and CAS state transitions in ReentrantLock.
Senior-level guide to Elasticsearch cluster engineering — covering memory management, the 32GB JVM heap boundary, Zen2 discovery, write/search optimization, and ILM.
A comprehensive collection of real technical interview questions and answers from an HCL Java Developer interview for a candidate with 3 years of experience. Covers JVM Architecture, OOPs, Collections, and Spring Boot Internals.
Comprehensive answers to Java Software Design Patterns and Garbage Collection interview questions.
Interview notes on JVM runtime architecture and exception propagation in Java applications.
A practical guide to JVM monitoring and diagnostics tools (jcmd, jstack, jmap, jstat) and troubleshooting CPU spikes, deadlocks, and memory leaks.
Guide to JVM internals covering memory layout, garbage collection, class loading, and runtime performance basics.
A complete guide to memory management — virtual memory, paging, TLB, page replacement, fragmentation, Linux allocators, JVM heap regions, GC algorithms, tuning, and production memory profiling. Beginner through senior depth.
A comprehensive knowledge base covering all major operating system concepts, with a focus on Linux internals and Java/JVM perspective.
A complete guide to processes and threads — memory layout, lifecycles, IPC, threading models, context switching, Java concurrency, virtual threads, thread pool tuning, memory visibility, and production patterns. Beginner through senior depth.
An in-depth guide to understanding what data is stored in stack memory and heap memory in the Java Virtual Machine (JVM), including memory tuning and garbage collection.
A comprehensive guide to virtual memory — covering address spaces, paging mechanics, swap, OOM killer, huge pages, NUMA, and practical Linux/JVM tuning for senior engineers.
A detailed collection of real interview questions and answers from a Wipro Java Developer interview. Ideal for candidates with ~3 years of experience, covering JVM Internals, Memory Management, Spring Boot, and Core Java snippets.