Bug 2102450

Summary:	Kernel parm needs to be added when a pao performance profile is applied, rcutree.kthread_prio=11
Product:	OpenShift Container Platform	Reporter:	browsell
Component:	Performance Addon Operator	Assignee:	Vitaly Grinberg <vgrinber>
Status:	CLOSED ERRATA	QA Contact:	Gowrishankar Rajaiyan <grajaiya>
Severity:	high	Docs Contact:
Priority:	high
Version:	4.11	CC:	bzvonar, dagray, dgonyier, keyoung, kquinn, mniranja, vgrinber
Target Milestone:	---
Target Release:	4.12.0
Hardware:	x86_64
OS:	Linux
Whiteboard:
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.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-01-17 19:51:09 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2114681

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