Bug 1498465 - CPU Layer 3 cache needs to be enabled for high performance VMs
Summary: CPU Layer 3 cache needs to be enabled for high performance VMs
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: ovirt-engine
Classification: oVirt
Component: BLL.Virt
Version: future
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ovirt-4.2.0
: ---
Assignee: Sharon Gratch
QA Contact: Artyom
URL:
Whiteboard:
Depends On:
Blocks: 1457239
TreeView+ depends on / blocked
 
Reported: 2017-10-04 11:54 UTC by Tomas Jelinek
Modified: 2017-12-20 11:00 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: No Doc Update
Doc Text:
undefined
Clone Of:
Environment:
Last Closed: 2017-12-20 11:00:02 UTC
oVirt Team: Virt
Embargoed:
rule-engine: ovirt-4.2+
rule-engine: planning_ack+
tjelinek: devel_ack+
mavital: testing_ack+

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
oVirt gerrit 83125 0 master MERGED core: Enable cpu layer 3 cache for high performance VMs 2017-10-24 15:46:12 UTC

Description Tomas Jelinek 2017-10-04 11:54:44 UTC 
Description of problem:

If the VM is declared as high performance VM, the CPU Layer 3 cache needs to be enabled for it.
Comment 1 Red Hat Bugzilla Rules Engine 2017-10-04 11:54:47 UTC 
Target release should be placed once a package build is known to fix a issue. Since this bug is not modified, the target version has been reset. Please use target milestone to plan a fix for a oVirt release.
Comment 2 Sharon Gratch 2017-10-25 09:51:54 UTC 
No documentation is needed here since it is part of the "high performance" feature documentation (https://bugzilla.redhat.com/show_bug.cgi?id=1505927)
Comment 3 Artyom 2017-10-29 07:03:36 UTC 
No any information about CPU cache under https://github.com/oVirt/ovirt-site/blob/master/source/develop/release-management/features/virt/high-performance-vm.html.md, so please update it.
Comment 4 Sharon Gratch 2017-10-30 12:57:35 UTC 
(In reply to Artyom from comment #3)
> No any information about CPU cache under
> https://github.com/oVirt/ovirt-site/blob/master/source/develop/release-
> management/features/virt/high-performance-vm.html.md, so please update it.

Added: 
https://www.ovirt.org/develop/release-management/features/virt/high-performance-vm/#enable-cpu-cache-layer-3
Comment 5 Artyom 2017-10-31 11:35:19 UTC 
Verified on ovirt-engine-4.2.0-0.0.master.20171027213842.gitded437c.el7.centos.noarch
# virsh -r dumpxml 90 | grep cache
....
<cache level='3' mode='emulate'/>
....
Comment 6 Sandro Bonazzola 2017-12-20 11:00:02 UTC 
This bugzilla is included in oVirt 4.2.0 release, published on Dec 20th 2017.

Since the problem described in this bug report should be
resolved in oVirt 4.2.0 release, published on Dec 20th 2017, it has been closed with a resolution of CURRENT RELEASE.

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