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  1. OpenShift Virtualization
  2. CNV-41517

kubevirt_vmi_vcpu_wait_seconds_total and kubevirt_vmi_vcpu_seconds_total values are wrong

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    • CNV I/U Operators Sprint 253
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      Description of problem:

      In order to move units to seconds, kubevirt_vmi_vcpu_wait_seconds_total and kubevirt_vmi_vcpu_seconds_total are divided by nanoseconds (1000000000), however, according to https://www.libvirt.org/manpages/virsh.html#domstats:
vcpu.<num>.time - virtual cpu time spent by virtual CPU <num> (in microseconds)
vcpu.<num>.wait - virtual cpu time spent by virtual CPU <num> waiting on I/O (in microseconds).
They should be divided by microseconds (1000000).

      Version-Release number of selected component (if applicable):

       

      How reproducible:

      always

      Steps to Reproduce:

      1. Look at https://github.com/kubevirt/kubevirt/blob/a72353209753b177a2d71abc7204c6254befc89a/pkg/monitoring/domainstats/prometheus/prometheus.go#L272.

      Actual results:

      kubevirt_vmi_vcpu_wait_seconds_total and kubevirt_vmi_vcpu_seconds_total are divided by nanoseconds

      Expected results:

      kubevirt_vmi_vcpu_wait_seconds_total and kubevirt_vmi_vcpu_seconds_total are divided by microseconds

      Additional info:

       

      Fix PRs:

      4.17 - https://github.com/kubevirt/kubevirt/pull/11858

      4.16 - https://github.com/kubevirt/kubevirt/pull/11878

      4.15 - https://github.com/kubevirt/kubevirt/pull/11879

              aadmi@redhat.com Assaf Admi (Inactive)
              aadmi@redhat.com Assaf Admi (Inactive)
              Debarati Basu-Nag Debarati Basu-Nag
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                Created:
                Updated:
                Resolved: