Bug 1580386

Summary:	'Enable IO threads' should be checked by default (or at least for Server VM type)
Product:	[oVirt] ovirt-engine	Reporter:	Yaniv Kaul <ykaul>
Component:	Frontend.WebAdmin	Assignee:	Shmuel Melamud <smelamud>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Nisim Simsolo <nsimsolo>
Severity:	high	Docs Contact:
Priority:	medium
Version:	4.3.0	CC:	bugs, michal.skrivanek, nsimsolo
Target Milestone:	ovirt-4.2.5	Keywords:	Improvement, Performance
Target Release:	---	Flags:	rule-engine: ovirt-4.2+ rule-engine: ovirt-4.3+ ykaul: blocker+
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-07-31 15:32:23 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	Virt	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Yaniv Kaul 2018-05-21 11:51:58 UTC

Description of problem:
The default, at least for server VM type, should be checked.
It's supposed to provide performance with little downside

Comment 3 Nisim Simsolo 2018-07-18 08:19:06 UTC

Verified: 
rhvm-4.2.5.1-0.1.el7ev
qemu-kvm-rhev-2.10.0-21.el7_5.4.x86_64
libvirt-client-3.9.0-14.el7_5.6.x86_64
vdsm-4.20.34-1.el7ev.x86_64

Verification scenario: 
Open new Vm dialog and Verify "IO threads enabled" checkbox is unchecked for desktop VM type, and checked for server and high performance VM.

Play with "optimized for" dropbox and move between server/high performance/desktop options and verify that constancy of IO threads enabled for server/high performance VM is kept.

Comment 4 Sandro Bonazzola 2018-07-31 15:32:23 UTC

This bugzilla is included in oVirt 4.2.5 release, published on July 30th 2018.

Since the problem described in this bug report should be
resolved in oVirt 4.2.5 release, it has been closed with a resolution of CURRENT RELEASE.

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