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spring-boot-demo/kubernetes-deployment/docs/output/gc-cpu-ratio.txt
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asmhatreandClaude Opus 5 a065696478 Add kubernetes-deployment: probes, shutdown, JVM ergonomics, HPA
Companion code for "Deploying Spring Boot 4 on Kubernetes: Probes, Graceful
Shutdown, Limits and JVM Ergonomics". A dependency outage under three
probe-group setups, a rolling restart under load four ways (three runs
each), the JVM's ergonomic choices for nine pod shapes, one GC-heavy load
under five CPU limits with throttling counters, and an HPA driven by a
Micrometer gauge through prometheus-adapter. Measured on k3s v1.36.4.

Co-Authored-By: Claude Opus 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01C3TETMrqVUWeFkNtz3Jbo3
2026-09-11 17:12:10 +00:00

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# CPU the collector received during its pauses, from -Xlog:gc+cpu (sum over every collection)
collections user+sys real cpu/real
A 2189 5.32s 10.71s 0.50
B 4279 11.12s 11.12s 1.00
C 1783 9.24s 10.11s 0.91
D 1960 12.03s 8.69s 1.38
E 1878 12.58s 8.59s 1.46