A water-utility container shows CPU throttling metrics even though the node still has spare CPU. What is the most likely cause?
Select an answer to reveal the explanation.
Short Explanation
Limits are a personal speed limit. Even on an empty highway, a tiny CPU limit still puts the throttle on that container.
Full Explanation
CPU limits are enforced per container via CFS quotas. When a container hits its limit it is throttled even if the node has idle cores. Token projection, CNI addressing, and etcd compaction are unrelated to per-container CPU throttling under spare node capacity.