Bug 1701935 - Provide option to disable EMC in puppet-vswitch
Summary: Provide option to disable EMC in puppet-vswitch
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: puppet-vswitch
Version: 14.0 (Rocky)
Hardware: All
OS: Linux
high
high
Target Milestone: z3
: 14.0 (Rocky)
Assignee: yogananth subramanian
QA Contact: nlevinki
URL:
Whiteboard:
: 1701934 (view as bug list)
Depends On:
Blocks: 1701940
TreeView+ depends on / blocked
 
Reported: 2019-04-22 13:44 UTC by yogananth subramanian
Modified: 2019-07-02 20:08 UTC (History)
10 users (show)

Fixed In Version: puppet-vswitch-9.3.1-0.20181013121023.6a6eac8.el7ost
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-07-02 20:08:28 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Launchpad 1821821 0 None None None 2019-04-22 13:47:53 UTC
OpenStack gerrit 650870 0 None MERGED Provide option to disable EMC in puppet-vswitch 2020-05-26 09:17:04 UTC
Red Hat Product Errata RHBA-2019:1672 0 None None None 2019-07-02 20:08:39 UTC

Description yogananth subramanian 2019-04-22 13:44:53 UTC 
Description of problem:
Based on observation presented by Andrew Theurer[1],As the number of flows increase, the performance of OvS-DPDK with the Exact Match Cache (EMC) seems to diminish below OvS-DPDK performance with no EMC at all.
Hence an option to disable EMC.

[1] -http://www.openvswitch.org/support/ovscon2018/5/1330-theurer.pdf
Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:
emc-insert-inv-prob to 0


Additional info:
Comment 1 yogananth subramanian 2019-04-22 13:52:49 UTC 
*** Bug 1701934 has been marked as a duplicate of this bug. ***
Comment 17 errata-xmlrpc 2019-07-02 20:08:28 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, 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/RHBA-2019:1672
Note You need to log in before you can comment on or make changes to this bug.