Kubernetes QoS Calculator

Determine a pod's QoS class from requests and limits, and flag OOM and overcommit risk.

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Leave all four blank for BestEffort. Set requests equal to limits for Guaranteed.

QoS class
Burstable

At least one request or limit is set, but requests do not equal limits across CPU and memory. The pod gets Burstable: it can use spare capacity but is evicted before Guaranteed pods.

CPU overcommit (limit / request)
2.00x
0.25 -> 0.5 cores. Above request, CPU is throttled (not killed).
Memory overcommit (limit / request)
2.00x
256.00 MiB -> 512.00 MiB.
OOM / eviction risk
  • Memory limit is set: exceeding 512.00 MiB triggers an immediate OOMKill of the container.
  • Memory request is below the limit, so the node may be overcommitted and your pod can be evicted under pressure even below its limit.

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