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PerformanceTuning

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DaTaobao Tech

Mar 22, 2024 · Backend Development

Understanding JVM Memory, GC, and Performance Tuning

The article explains JVM runtime memory regions, heap allocation and generational layout, object reference types, major garbage‑collection algorithms and collectors, class‑loading phases, and provides practical tuning commands and case studies for optimizing GC pauses, preventing memory leaks, and diagnosing performance bottlenecks.

GarbageCollectionJVMJava

0 likes · 33 min read

Understanding JVM Memory, GC, and Performance Tuning

JD Tech

Sep 18, 2023 · Fundamentals

Full GC Root Cause Analysis and Resolution in Java Applications

This article documents a step‑by‑step investigation of a high TP99 caused by frequent Full GC in a Java service, describing the diagnostic mindset, tools used, GC trigger conditions, object promotion mechanisms, the impact of AdaptiveSizePolicy and Metaspace, and the concrete configuration and code changes that eliminated the issue.

AdaptiveSizePolicyFullGCJVM

0 likes · 12 min read

Full GC Root Cause Analysis and Resolution in Java Applications