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  1. OpenShift Virtualization
  2. CNV-41447

[OCP Virt] Empty advanced dashboards after enabling schedstats=enable on kernel hypervisor

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    • CNV I/U Operators Sprint 253
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      After enabling schedstats=enable on the kernel of the hypervisor the advanced metrics on the kubevirt dashboard are empty (https://files.slack.com/files-pri/T030G10V24F-F070H35HQDT/download/2024-04-24t23_57_08_544300978_02_00.png?origin_team=E030G10V24F).
      The worker node was rebooted and the parameter was correctly applied:

      [core@worker000-1029u ~]$ grep schedstats=enable /proc/cmdline BOOT_IMAGE=(hd0,gpt3)/ostree/rhcos-096f88ade1795bff4e748df65a1f1ed5be158e353c27f28e4e2df071bc604c88/vmlinuz-5.14.0-284.48.1.el9_2.x86_64 ignition.platform.id=metal ostree=/ostree/boot.0/rhcos/096f88ade1795bff4e748df65a1f1ed5be158e353c27f28e4e2df071bc604c88/0 ip=dhcp root=UUID=8d0c0377-5efa-4668-aeff-eb8729171bd5 rw rootflags=prjquota boot=UUID=9ee0a58a-36f0-4970-bce8-dba8ba4ad098 intel_iommu=on iommu=pt schedstats=enable hugepagesz=2M hugepages=100000 systemd.unified_cgroup_hierarchy=1 cgroup_no_v1=all psi=1

      OCP version: 4.14.19

       

            aadmi@redhat.com Assaf Admi
            jcastillolema Jose Castillo Lema
            Debarati Basu-Nag Debarati Basu-Nag
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