Bug 1090576 - Cluster -> Memory Optimization screen requires cleaner language
Summary: Cluster -> Memory Optimization screen requires cleaner language
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Virtualization Manager
Classification: Red Hat
Component: ovirt-engine-webadmin-portal
Version: 3.4.0
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
: 3.5.0
Assignee: Martin Sivák
QA Contact: Michael Burman
URL:
Whiteboard: sla
Depends On:
Blocks: rhev3.5beta3
TreeView+ depends on / blocked
 
Reported: 2014-04-23 16:17 UTC by Scott Herold
Modified: 2016-02-10 20:15 UTC (History)
10 users (show)

Fixed In Version: org.ovirt.engine-root-3.5.0-14
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-02-17 17:16:25 UTC
oVirt Team: SLA
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)
Cluster Optimization in RHEV 3.4 (182.77 KB, image/png)
2014-04-23 16:17 UTC, Scott Herold
no flags Details


Links
System ID Private Priority Status Summary Last Updated
oVirt gerrit 33177 0 master MERGED webadmin: Improve wording of the memory optimization options Never
oVirt gerrit 33236 0 ovirt-engine-3.5 MERGED webadmin: Improve wording of the memory optimization options Never

Description Scott Herold 2014-04-23 16:17:56 UTC
Created attachment 889006 [details]
Cluster Optimization in RHEV 3.4

Description of problem:

Enhancements in 3.4 to Enable/Disable KSM have introduced confusion regarding terminology being used in the Cluster -> Optimization screen.  Historically, we have had settings for "Memory Optimization" which provide options of None, For Server Load, and For Desktop Load", which apply various "memory page sharing" values.  I believe "memory page sharing" is an improper term, as to me, and several customers, relate that to VMware's feature of "Transparent Page Sharing", which is equivilent to our KSM.  Now that we have added the option to Enable/Disable KSM, this becomes confusing, as it seems like we can modify the same concept in two different locations.


How reproducible:
100% in RHEV 3.4

Steps to Reproduce:
1.  Create or Edit a Cluster
2.  Click on the "Optimization" tab


Actual results:
As defined above

Expected results:
We should look to modify the terminology of the Memory Optimization setting to more accurately reflect what it is controlling, which, as far as I can tell, is Consumed Memory Over-Commit, or how much we can over-commit a cluster or host in the cluster based on the idea that it is possible to Allocate more memory to VMs that exist in the source host.

Memory Page Sharing should not be used, as it causes confusion agains what KSM actually does... which is physical page sharing.

Additional info:
See BZ 1072030 for how this is already causing confusion in RHEV 3.3 without the KSM Control option

Comment 1 Eyal Edri 2014-10-07 07:13:03 UTC
this bug status was moved to MODIFIED before engine vt5 was built,
hence moving to on_qa, if this was mistake and the fix isn't in,
please contact rhev-integ

Comment 2 Michael Burman 2014-10-22 13:38:51 UTC
Verified on - 3.5.0-0.15.beta.el6ev

Comment 3 Eyal Edri 2015-02-17 17:16:25 UTC
rhev 3.5.0 was released. closing.


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