Bug 1690641

Summary:	High Host CPU load for Windows 10 Guests (Update 1803) when idle [qemu-kvm]
Product:	Red Hat Enterprise Linux 7	Reporter:	Paul Gozart <pgozart>
Component:	qemu-kvm	Assignee:	Vitaly Kuznetsov <vkuznets>
Status:	CLOSED WONTFIX	QA Contact:	Yu Wang <wyu>
Severity:	medium	Docs Contact:
Priority:	urgent
Version:	7.6	CC:	ailan, bjoernv, chayang, choma, claytonn, dholler, ehabkost, fjin, jinzhao, juzhang, knoel, lijin, linux, lspiehler, michal.skrivanek, michen, mkalinin, mrezanin, mtessun, nerijus, pbonzini, pgozart, ribarry, schandle, siliu, spam, toneata, virt-bugs, virt-maint, vkuznets, vrozenfe, xfu, xiagao, yfu, zhguo
Target Milestone:	rc	Keywords:	FutureFeature, Reopened
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:	1638835	Environment:
Last Closed:	2020-06-22 15:08:06 UTC	Type:	---
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:	1610461, 1638835, 1644693
Bug Blocks:	1624786

Comment 21 Alan Goodman 2019-04-22 12:10:06 UTC

Also affects Windows 10 1809 on latest Centos 7 with CentOS Plus kernel.

Interestingly I have a machine running updated CentOS but older kernel 3.10.0-514.26.2.el7.x86_64 which does not appear to be impacted.  This machine had a Windows 10 1803 VM installed on it.

Comment 23 Alan Goodman 2019-04-24 20:04:49 UTC

For me this is fixed in the EV variant of the software.