JVM Optimization Cheat Sheet
Quick-reference card for JVM tuning on OpenShift & Kubernetes. All flags verified on Red Hat UBI9 with Podman.
Container Heap Sizing
GC Quick-Select
GC Defaults by Image
Thread Count Tuning
Startup Optimization
Right-Sizing Quick Reference
HPA Configuration
Prometheus Metrics
Low-Latency Ladder
Panama FFM
gRPC vs REST
Podman Gotchas
JVM Flags Cookbook
Key Flags Reference
AppCDS vs Leyden vs Native
Health Check Endpoints
File location in repo
java-optimization-demos/JVM-OPTIMIZATION-CHEATSHEET.md
Quick start: The most impactful flags for any container deployment —
-XX:+UseContainerSupport -XX:MaxRAMPercentage=75.0 -XX:ParallelGCThreads=N
where N equals your CPU request. That's 80% of the value in three flags.