[release-4.11] [manual] OCPBUGS-3182: set RPS for veth on host level only #508
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@Tal-or: This pull request references Jira Issue OCPBUGS-3182, which is invalid:
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@Tal-or: This pull request references Jira Issue OCPBUGS-3182, which is invalid:
All dependent bugs must be part of the OCPBUGS project. If you are backporting a fix that was originally tracked in Bugzilla, follow these steps to handle the backport:
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RPS handling on pod container level using crio-hooks causes long delay times when running the low latency script to set the RPS mask (https://bugzilla.redhat.com/show_bug.cgi?id=2109965) For RAN low latency solution it might be sufficient only to set the RPS on the host level and avoid setting it on the container level while utilizing RSS behavior. In the past the low latency hook was added with RPS additional settings on virtual devices since there was an issue where the start and shutdown of big amount of pods will initiate the creation of the systemd service that should update the new interfaces rps_cpus mask and can create an additional CPU load under the cluster (openshift-kni/performance-addon-operators#659) This might not be the case any more thus we need to examine how the revert of the aforementioned PR will behave now. Signed-off-by: Talor Itzhak <titzhak@redhat.com>
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/test e2e-upgrade |
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/label backport-risk-assessed |
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if there are relevant e2e-tests we can downport in the same PR it will be good for coverage. |
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/hold |
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/approve |
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: Tal-or, yanirq The full list of commands accepted by this bot can be found here. The pull request process is described here
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@Tal-or: This pull request references Jira Issue OCPBUGS-3182, which is valid. The bug has been moved to the POST state. 6 validation(s) were run on this bug
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/lgtm |
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@Tal-or: All pull requests linked via external trackers have merged: Jira Issue OCPBUGS-3182 has been moved to the MODIFIED state. In response to this:
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RPS handling on pod container level using crio-hooks causes long delay times when running the low latency script to set the RPS mask (https://bugzilla.redhat.com/show_bug.cgi?id=2109965)
For RAN low latency solution it might be sufficient only to set the RPS on the host level and avoid setting it on the container level while utilizing RSS behavior.
In the past the low latency hook was added with RPS additional settings on virtual devices since there was an issue where the start and shutdown of big amount of pods will initiate the creation of the systemd service that should update the new interfaces rps_cpus mask and can create an additional CPU load under the cluster (openshift-kni/performance-addon-operators#659)
This might not be the case any more thus we need to examine how the revert of the aforementioned PR will behave now.
Co-authored-by: Yanir Quinn yquinn@redhat.com
Signed-off-by: Talor Itzhak titzhak@redhat.com