[WIP] Prefer higher priority workloads over sticky workload as a head in a cluster queue

[j-skiba]

What type of PR is this?

/kind bug

What this PR does / why we need it:

Fixes:

• decreases number of performed preemptions when higher priority workload is admitted and sticky workload is lower priority

Which issue(s) this PR fixes:

Fixes #7301

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Fixed a priority inversion issue where higher-priority workloads could be blocked by a "sticky" lower-priority workload that had already initiated preemption.

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: j-skiba
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[k8s-ci-robot]

Hi @j-skiba. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[mbobrovskyi]

/ok-to-test

[j-skiba]

/retest

[k8s-ci-robot]

@j-skiba: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-kueue-test-unit-main	1c4be4f	link	true	/test pull-kueue-test-unit-main
pull-kueue-test-integration-baseline-main	1c4be4f	link	true	/test pull-kueue-test-integration-baseline-main
pull-kueue-test-e2e-main-1-35	1c4be4f	link	true	/test pull-kueue-test-e2e-main-1-35

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.