czhfe opened a new issue #14662:
URL: https://github.com/apache/pulsar/issues/14662
**Describe the bug**
The CPU utilization calculated by process_cpu_seconds_total,
pulsar_lb_cpu_usage provided by pulsar and container metrics provided by
kubernetes are inconsistent and vary greatly, which is the correct one? Why is
there a difference?
**Expressions for calculation of indicators**
```
# process_cpu_seconds_totall
irate(process_cpu_seconds_total{pod="pulsar-private-broker-0"}[5m])
# pulsar_lb_cpu_usagel
pulsar_lb_cpu_usage{pod="pulsar-private-broker-0"}
# Container Metrics Metrics provided by kubernetes
sum(irate(container_cpu_usage_seconds_total{pod="pulsar-private-broker-0"}[5m]))
by (pod) /
sum(kube_pod_container_resource_limits_cpu_cores{pod="pulsar-private-broker-0"})
by (pod)
```
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