CPU & Memory, Requests & Limits, QoS & CFS: The JVM in the Kubernetes Pod
TalkinGermanat JCON Europe 2023 · on Thursday, 2023-06-22· at 16:00· Cinema 7, Im Mediapark 1, 50670 Köln, Germany·
summary
Explains how the JVM interacts with Kubernetes containers, focusing on CPU and memory settings, Kubernetes Requests & Limits, QoS classes and the Linux CFS/cgroups behavior that affect how many CPUs the JVM detects. Reviews recent changes in Kubernetes, cgroups v2 and JVM updates (notably Java 18–20 features such as Project Loom) and how those changes — and their backports into LTS releases 11 and 17 — can alter JVM behavior inside a Pod.
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