Bug 2102450 - Kernel parm needs to be added when a pao performance profile is applied, rcutree.kthread_prio=11
Summary: Kernel parm needs to be added when a pao performance profile is applied, rcut...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: OpenShift Container Platform
Classification: Red Hat
Component: Performance Addon Operator
Version: 4.11
Hardware: x86_64
OS: Linux
high
high
Target Milestone: ---
: 4.12.0
Assignee: Vitaly Grinberg
QA Contact: Gowrishankar Rajaiyan
URL:
Whiteboard:
Depends On:
Blocks: 2114681
TreeView+ depends on / blocked
 
Reported: 2022-06-30 00:36 UTC by browsell
Modified: 2023-09-18 04:40 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Enhancement
Doc Text:
Feature: The low latency tuning was updated to use the new kernel features and options. Reason: The fix for https://bugzilla.redhat.com/show_bug.cgi?id=2117780 introduces a new per-cpu kthread, ktimers. This thread must be pinned to the proper cpu cores. Result: Additional kernel arguments. No functional change should be observed, the isolation of the workload is the same.
Clone Of:
Environment:
Last Closed: 2023-01-17 19:51:09 UTC
Target Upstream Version:
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Github openshift cluster-node-tuning-operator pull 408 0 None Merged Bug 2102450: set rcutree.kthread_prio to ksoftirqd prio 2022-08-09 17:59:54 UTC
Red Hat Product Errata RHSA-2022:7399 0 None None None 2023-01-17 19:51:38 UTC

Comment 12 errata-xmlrpc 2023-01-17 19:51:09 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Moderate: OpenShift Container Platform 4.12.0 bug fix and security update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2022:7399
Comment 13 Red Hat Bugzilla 2023-09-18 04:40:41 UTC 
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 120 days
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