Kubernetes Resource Management: QoS Classes, Eviction, OOM Scoring, and Capacity Planning

Calendar February 21, 2026
Kubernetes
Advanced
Resource-Management, Capacity-Planning, Qos-Optimization, Eviction-Analysis, Resource-Monitoring
Resources, Qos, Eviction, Oom-Killer, Capacity-Planning, Cpu-Throttling, Memory-Management, Resource-Quotas, Limit-Ranges, Monitoring
Kubectl, Prometheus, Metrics-Server

Kubernetes Resource Management Deep Dive#

Resource management in Kubernetes is the mechanism that decides which pods get scheduled, which pods get killed when the node runs low, and how much CPU and memory each container is actually allowed to use. The surface-level concept of requests and limits is straightforward. The underlying mechanics – QoS classification, CFS CPU quotas, kernel OOM scoring, kubelet eviction thresholds – are where misconfigurations cause production outages.