Bug 2074447

Summary:	cluster-dashboard: CPU Utilisation iowait and steal
Product:	OpenShift Container Platform	Reporter:	Jan Fajerski <jfajersk>
Component:	Management Console	Assignee:	Jakub Hadvig <jhadvig>
Status:	CLOSED ERRATA	QA Contact:	Yadan Pei <yapei>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	4.11	CC:	amuller, anpicker, aos-bugs, spasquie
Target Milestone:	---
Target Release:	4.11.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-08-10 11:06:14 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:

Description Jan Fajerski 2022-04-12 09:02:59 UTC

Description of problem:

'iowait' and 'steal' indicate specific idle/wait states, which shouldn't
be counted into CPU Utilisation.

Per the iostat man page:

%idle
Show the percentage of time that the CPU or CPUs were idle and the
system did not have an outstanding disk I/O request.

%iowait
Show the percentage of time that the CPU or CPUs were idle during
which the system had an outstanding disk I/O request.

%steal
Show the percentage of time spent in involuntary wait by the
virtual CPU or CPUs while the hypervisor was servicing another
virtual processor.

Comment 3 hongyan li 2022-04-15 07:36:41 UTC

wait for the fix in payload, not in any payload now.

Comment 4 hongyan li 2022-04-18 08:02:17 UTC

Test with payload 4.11.0-0.nightly-2022-04-16-163450

Request url contains the change
https://console-openshift-console.apps.qe-daily-0418.qe.devcluster.openshift.com/api/prometheus/api/v1/query_range?start=1650264822.946&end=1650268422.946&step=60&query=
      sum(
        (
          1 - sum without (mode) (rate(node_cpu_seconds_total{mode=~"idle|iowait|steal"}[2m]))
          *
          on(namespace, pod) group_left(node) node_namespace_pod:kube_pod_info:{pod=~"node-exporter. "}
        )
        *
        on(node) group_left(role) (
          max by (node) (kube_node_role{role=~". "})
        )
      )

Comment 5 Simon Pasquier 2022-06-14 08:05:44 UTC

Moving to the management console component since the fix was in github.com/openshift/console.

Comment 9 errata-xmlrpc 2022-08-10 11:06:14 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 (Important: OpenShift Container Platform 4.11.0 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-2022:5069