High-Performance Binary & Zero-Copy Serialization
Comprehensive principal engineering guide to modern high-performance binary serialization protocols (Kryo, Protocol Buffers, FlatBuffers), off-heap memory mapping, and zero-allocation message traversal.
Java ClassLoaders Delegation & Metaspace Internals
Comprehensive principal engineering guide to Java ClassLoader delegation hierarchies, child-first class loading in web servers, Metaspace off-heap native memory chunk architecture, and class unloading leak diagnostics.
Memory Management — OS & Java
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.
Off-Heap Memory & FFM API: High-Performance Native Memory in Modern Java (Java 22+)
Comprehensive guide to Off-Heap Memory and Foreign Function & Memory API (JEP 454) in Java 22+. Learn how to bypass Garbage Collection Stop-the-World pauses, eliminate object overhead, achieve Zero-Copy I/O, manage MemorySegment and Arena scopes, and avoid Kubernetes OOMKilled crashes.
Production OOM from Innocent Code: ReDoS, 4 Memory Leak Avenues & 2 AM Triage Runbook
Post-mortem analysis of production OutOfMemoryError failures: why an innocent token-masking regex crashed a Kubernetes pod, 4 JVM memory leak avenues, metrics senses, and the 2 AM incident triage playbook.