[GitHub] [pulsar] czhfe opened a new issue #14662: About pulsar CPU usage problem

[GitBox <gi...@apache.org>]

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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