If you understand Node Allocatable + kubelet system reservations + eviction thresholds, you can avoid the #1 cause of node instability: Node memory pressure and random Pod evictions.
Segment 6 is one of the most advanced and misunderstood areas of Kubernetes resource isolation. This is where Kubernetes goes beyond “fair CPU time” and enters the world of exclusive CPUs, NUMA alignment, latency-sensitive workloads, and AI/HPC performance tuning.
Segment 5** is where we explore the less talked-about but extremely powerful cgroup controllers that Kubernetes uses (or can use) to isolate workloads:
Segment 4 is the most important one, because memory isolation is the mechanism that actually kills containers, unlike CPU which is elastic.
SEGMENT 3 — CPU ISOLATION IN KUBERNETES USING CGROUPS