CMS and G1 Collectors: Low-Latency Garbage Collection
How CMS and G1 garbage collectors reduce pause times through concurrent marking, region-based heap layout, and incremental compaction.
Posts tagged with #garbage-collection
GC Fundamentals: Mark-Compact, Copying, and Mark-Sweep
Understanding the three core garbage collection algorithms - Mark-Sweep, Mark-Compact, and Copying - their mechanics, trade-offs, and when to use each.
GC Logging Analysis: Decoding JVM Garbage Collection Logs
Master JVM garbage collection log analysis with -Xlog:gc, GCEasy, and GCViewer. Practical guide to diagnosing memory issues and tuning performance.
JVM GC Tuning: Heap Sizing and Threshold Optimization
Practical strategies for sizing JVM heap, tuning generation ratios, and optimizing GC thresholds to reduce pause times and improve throughput.
JVM Heap Memory: Young Gen, Old Gen, Metaspace, and Object Headers
A deep dive into JVM heap memory organization including Young Generation, Old Generation, Metaspace, and object header internals for performance optimization.
Heap Walking and Allocation Tracking: TLABs and Heap Analysis
Understand how the JVM allocates memory with TLABs, how to track allocations with low overhead, and how heap walking tools analyze object graphs.
Serial vs Parallel GC: Throughput-Focused Collectors
A practical guide to Serial and Parallel garbage collectors - how they work, when to use each, throughput trade-offs, and production tuning tips.
ZGC and Shenandoah: Ultra-Low Latency Garbage Collectors
How ZGC and Shenandoah achieve sub-millisecond pause times through concurrent operations and load barriers, without stopping your application.
Git Garbage Collection and Maintenance
Master git gc, git prune, git fsck, and automated repository maintenance. Learn how Git manages object storage, cleans unreachable data, and keeps repositories healthy.