[release-4.20] OCPBUGS-117657: Fix performance related issues when selinux metrics are emitted - #2768
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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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@openshift-cherrypick-robot: Jira Issue OCPBUGS-87157 has been cloned as Jira Issue OCPBUGS-117657. 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-117657, which is invalid:
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/lgtm |
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/label backport-risk-assessed
/lgtm
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: bertinatto, gnufied, openshift-cherrypick-robot The full list of commands accepted by this bot can be found here. The pull request process is described here DetailsNeeds approval from an approver in each of these files:
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@gnufied: This pull request references Jira Issue OCPBUGS-117657, which is valid. The bug has been moved to the POST state. 7 validation(s) were run on this bug
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@openshift-cherrypick-robot: Jira Issue Verification Checks: Jira Issue OCPBUGS-117657 Jira Issue OCPBUGS-117657 has been moved to the MODIFIED state and will move to the VERIFIED state when the change is available in an accepted nightly payload. 🕓 DetailsIn response to this:
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This is an automated cherry-pick of #2678
/assign gnufied