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  1. OpenShift Bugs
  2. OCPBUGS-18662

cnf-tests: [test_id: 55012] RPS configuration applied on some physical devices

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       Previously, a race condition between udev events and the creation queues associated with physical device led to some of the queues being configured with the wrong Receive Packet Steering (RPS) mask while they should be reset to zero. This resulted in the RPS mask being configured on the queues of the physical devices, meaning they were using RPS instead of Receive Side Scaling (RSS) which could impact the performance. With this fix, the event was changed to be triggered per queue creation instead of on device creation. This guarantees that no queue will be missing. The queues of all physical devices are now set up with the correct RPS mask which is empty. (link:https://issues.redhat.com/browse/OCPBUGS-18662[*OCPBUGS-18662*])
      Show
       Previously, a race condition between udev events and the creation queues associated with physical device led to some of the queues being configured with the wrong Receive Packet Steering (RPS) mask while they should be reset to zero. This resulted in the RPS mask being configured on the queues of the physical devices, meaning they were using RPS instead of Receive Side Scaling (RSS) which could impact the performance. With this fix, the event was changed to be triggered per queue creation instead of on device creation. This guarantees that no queue will be missing. The queues of all physical devices are now set up with the correct RPS mask which is empty. (link: https://issues.redhat.com/browse/OCPBUGS-18662 [* OCPBUGS-18662 *])
    • Bug Fix
    • In Progress
    • 9/26: telco priority for 4.14 pending triage

    Description

      Description of problem:
      RPS configuration test failed with the following error:

      [FAILED] Failure recorded during attempt 1:
a host device rps mask is different from the reserved CPUs; have "0" want ""
Expected
    <bool>: false
to be true
In [It] at: /tmp/cnf-ZdGbI/cnf-features-deploy/vendor/github.com/onsi/gomega/internal/assertion.go:62 @ 09/06/23 03:47:44.144
< Exit [It] [test_id:55012] Should have the correct RPS configuration - /tmp/cnf-ZdGbI/cnf-features-deploy/vendor/github.com/openshift/cluster-node-tuning-operator/test/e2e/performanceprofile/functests/1_performance/performance.go:337 @ 09/06/23 03:47:44.144 (39.949s)

      Full report: 

      https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/origin-ci-test/logs/periodic-ci-openshift-release-master-nightly-4.15-e2e-telco5g-cnftests/1699249554244767744/artifacts/e2e-telco5g-cnftests/telco5g-cnf-tests/artifacts/test_results.html 

      How reproducible:

      Very often

      Steps to Reproduce:
      1. Reproduce automatically by the cnf-tests nightly job

      Actual results:
      Some of the virtual devices are not configured with the correct RPS mask

      Expected results:
      All virtual network devices are expected to have the correct RPS mask

      Attachments

        Issue Links

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          Bug - A problem that impairs or prevents the functions of the product. OCPBUGS-21845 cnf-tests: [test_id: 55012] RPS configuration applied on some physical devices

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed
          is cloned by

          Bug - A problem that impairs or prevents the functions of the product. OCPBUGS-21845 cnf-tests: [test_id: 55012] RPS configuration applied on some physical devices

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed
          is depended on by

          Bug - A problem that impairs or prevents the functions of the product. OCPBUGS-24205 RPS configuration [test_id:55012] Should have the correct RPS configuration - fails in upstream CI

          • Undefined - Priority not specified.
          • POST
          links to

          GitHub openshift-kni/cnf-features-deploy#1639: OCPBUGS-18662: vendor: bump nto deps

          GitHub openshift/cluster-node-tuning-operator#787: OCPBUGS-18662: e2e:rps: improve logging

          GitHub openshift/cluster-node-tuning-operator#816: OCPBUGS-18662:rps: trigger udev even per queue

          Web Link RHEA-2023:7198 rpm

          Activity

            People

              titzhak Talor Itzhak
              titzhak Talor Itzhak
              Mallapadi Niranjan Mallapadi Niranjan
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              Dates

                Created:
                Updated:
                Resolved: