[release-4.21] OCPBUGS-87157: Fix performance related issues when selinux metrics are emitted#2678
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When calling ControllerSELinuxTranslator.Conflicts(), the SELinux label is repeatedly split into []string to detect conflicts. This causes a huge number of allocations when there are many comparisons. This is now made more efficient by pre-parsing the SELinux label and storing it in podInfo as [4]string for fast comparison when needed.
Added podToVolumes reverse index to optimize DeletePod. Currently we simply iterate through all the volumes and remove the pod being deleted from there. This is inefficient and takes longer the longer the volume list becomes. Keeping a map pod -> volumes makes removing a pod fast. We can just jump to the relevant volumes directly and remove the pod from there.
Also prevent duplicate metric emissions
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✨ Finishing Touches🧪 Generate unit tests (beta)
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@openshift-cherrypick-robot: Jira Issue OCPBUGS-86898 has been cloned as Jira Issue OCPBUGS-87157. Will retitle bug to link to clone. DetailsIn response to this:
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@openshift-cherrypick-robot: This pull request references Jira Issue OCPBUGS-87157, which is invalid:
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This is an automated cherry-pick of #2676
/assign gnufied