Tagged articles

Minor GC

3 articles · Page 1 of 1

Oct 2, 2026 · Fundamentals

Frequent Minor GC? The Real Culprits Are Allocation Rate and Premature Promotion

This article explains why frequent Minor GC in Java applications stems from high object allocation rates or premature promotion to old generation, not heap size, and details generational collection mechanics, promotion thresholds, dynamic age judgment, and troubleshooting using jstat, GC logs, and AsyncProfiler to pinpoint allocation hotspots.

Allocation RateAsyncProfilerGC Logs

0 likes · 18 min read

Frequent Minor GC? The Real Culprits Are Allocation Rate and Premature Promotion

liandk

Sep 18, 2026 · Backend Development

Hidden GC Pauses Causing Random API Timeouts: JVM STW Troubleshooting Guide

This article reveals how long GC stop-the-world pauses cause random API timeouts without errors, detailing two fault scenarios, a four-step GC log analysis SOP with specific JVM flags, four root causes including young generation sizing and memory fragmentation, and optimization strategies from emergency restarts to G1/ZGC upgrades with monitoring alerts.

AlertingFull GCG1

0 likes · 15 min read

Hidden GC Pauses Causing Random API Timeouts: JVM STW Troubleshooting Guide

Programmer DD

Dec 4, 2018 · Fundamentals

Why Minor, Major, and Full GC Aren’t What You Think – A Deep Dive into JVM GC Pauses

This article clarifies the often‑confusing terminology of Minor, Major, and Full garbage collection in the JVM, explains how each type of GC works, analyzes real GC logs with code examples, and advises monitoring latency or throughput rather than relying on those labels.

Full GCGC PausesMajor GC

0 likes · 11 min read

Why Minor, Major, and Full GC Aren’t What You Think – A Deep Dive into JVM GC Pauses