Bug 1998120

Summary: Tuned affining containers to house keeping cpus
Product: OpenShift Container Platform Reporter: Jiří Mencák <jmencak>
Component: Performance Addon OperatorAssignee: Martin Sivák <msivak>
Status: CLOSED CURRENTRELEASE QA Contact: Gowrishankar Rajaiyan <grajaiya>
Severity: medium Docs Contact:
Priority: medium    
Version: 4.8CC: aos-bugs, grajaiya, jmencak, mniranja, shajmakh, yjoseph, yquinn
Target Milestone: ---   
Target Release: 4.8.z   
Hardware: Unspecified   
OS: Unspecified   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Cause: Tuned scheduler plugin did not recognize container processes as exceptions being managed by OCP's cpu manager. Consequence: Tuned modified the pinning of containers on restart and placed them all on the house keeping (reserved) cpus. This broke pinning guarantees and overloaded the reserved cpus. Fix: A new tuned feature #1980715 allows defining exceptions using cgroup name and PAO configures tuned to ignore container pinning. Result: Container pinning is now managed by OCP's cpu manager only.
Story Points: ---
Clone Of: 1985739 Environment:
Last Closed: 2022-04-05 14:44:11 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1985739    
Bug Blocks: