Tagged articles

GC Logs

8 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

CodeOnCode

Sep 16, 2026 · Backend Development

G1 Young Gen Tuning: Why Fixing Size Backfires & How to Adapt

This article explains why fixing G1's young generation size with -Xmn or percentage flags often harms performance, and demonstrates how to tune young GC by analyzing pause targets, Eden sizing, TLAB/PLAB logs, and object promotion patterns to let G1's adaptive sizing balance throughput and latency.

G1 GCGC LogsJava performance

0 likes · 16 min read

G1 Young Gen Tuning: Why Fixing Size Backfires & How to Adapt

liandk

Sep 11, 2026 · Backend Development

Java GC Log Analysis: Decode Fields, Spot Anomalies, Fix Production Performance Issues

This guide teaches how to read Java GC logs field by field, distinguish Minor/Major/Full GC, apply production-ready criteria to judge normal vs abnormal GC, and resolve four common GC anomaly scenarios with root-cause analysis and solutions.

GCGC LogsJVM

0 likes · 15 min read

Java GC Log Analysis: Decode Fields, Spot Anomalies, Fix Production Performance Issues

CodeOnCode

Sep 9, 2026 · Backend Development

Beyond Pause Times: Deep Dive into G1 GC Log Analysis for Java Performance Tuning

This article teaches how to analyze G1 GC logs beyond simple pause times by breaking down phase timings, heap changes, GC causes, and concurrent marking overhead, then mapping log signals like high Update RS or Object Copy to concrete code-level issues such as excessive reference writes, humongous allocations, or weak reference abuse.

G1 GCGC LogsGarbage Collection

0 likes · 27 min read

Beyond Pause Times: Deep Dive into G1 GC Log Analysis for Java Performance Tuning

Cognitive Technology Team

Oct 1, 2025 · Operations

How to Detect and Prevent JVM Memory Leaks in Production Environments

Learn to identify JVM memory leaks in production by monitoring heap usage, analyzing GC logs, using heap dumps and runtime profiling, and applying prevention patterns such as bounded caches, proper resource cleanup, and safe reference handling to avoid OutOfMemoryError crashes.

DiagnosticsGC LogsHeap Dump

0 likes · 11 min read

How to Detect and Prevent JVM Memory Leaks in Production Environments

JavaEdge

Jul 10, 2024 · Backend Development

Master G1 GC Logs: Enable, Read, and Analyze Java Garbage Collection Details

This guide explains how to enable detailed G1 GC logging in Java, interprets both Minor (YGC) and Full GC log entries, breaks down heap size changes, worker threads, pause times, and points to the GCEasy analysis tool for deeper insight.

G1GCGC LogsGarbage Collection

0 likes · 8 min read

Master G1 GC Logs: Enable, Read, and Analyze Java Garbage Collection Details

Full-Stack Internet Architecture

Jul 18, 2021 · Backend Development

Understanding and Analyzing JVM Garbage Collection Logs: Young and Full GC Cases

This article demonstrates how to trigger and interpret JVM garbage‑collection logs by creating a small Java program, configuring heap parameters, and dissecting both young and full GC log entries to reveal causes, memory changes, and performance implications.

GC LogsGarbage CollectionJVM

0 likes · 8 min read

Understanding and Analyzing JVM Garbage Collection Logs: Young and Full GC Cases

Architect's Tech Stack

Jul 24, 2019 · Backend Development

Understanding the G1 Garbage Collector in Java: Detailed Process and Log Analysis

This article explains the G1 (Garbage‑First) garbage collector introduced in JDK7, its region‑based architecture, key differences from CMS, and the complete GC cycle—including Young GC, concurrent phases, mixed GC, and Full GC—while providing real‑world log examples and performance insights for Java developers.

G1 GCGC LogsGarbage Collection

0 likes · 10 min read

Understanding the G1 Garbage Collector in Java: Detailed Process and Log Analysis