Bug 2099547 - [OCP 4.11] Telco HW-Offload performance degradation
Summary: [OCP 4.11] Telco HW-Offload performance degradation
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux Fast Datapath
Classification: Red Hat
Component: openvswitch
Version: RHEL 8.0
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: ---
: ---
Assignee: Marcelo Ricardo Leitner
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 2018001
TreeView+ depends on / blocked
 
Reported: 2022-06-21 08:30 UTC by Ziv Greenberg
Modified: 2022-07-21 15:03 UTC (History)
12 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2022-07-21 15:03:33 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Bugzilla 2099546 0 unspecified CLOSED [OCP 4.11] Telco DPDK performance degradation 2022-07-21 15:05:52 UTC
Red Hat Issue Tracker FD-2050 0 None None None 2022-06-27 14:48:02 UTC

Internal Links: 2099546

Comment 8 Mike Fiedler 2022-07-18 15:00:38 UTC 
This is reported as blocking 
OSASINFRA-2764 NFV UX improvements - 4.11 
OSASINFRA-2804 Enable OVS Hardware offload - GA
Comment 9 Marcelo Ricardo Leitner 2022-07-18 15:52:14 UTC 
Hi Ziv.

I still don't fully understand the setup here nor the expectations, but we have important fixes landing in 8.6.z for OVS+CT HWOL, like:
https://bugzilla.redhat.com/show_bug.cgi?id=2104012
this is a kind of bug that can lead to offload breakage and packets to be steered in sw instead.
It is included in kernel-4.18.0-372.19.1.el8_6.  (which is unreleased yet)

Also, in OCP 4.11 it is using a newer ovs which is triggering an issue by adding an extra clone() action in the datapath.
It is still being debugged and we don't have a specific bz for it yet.

It would be nice if you could provide the output of the following command for a test that is not working for you:
  # ovs-appctl dpctl/dump-flows -m --names

There, we will be able to see if the flows are offloaded or not and drive it from there.
Note You need to log in before you can comment on or make changes to this bug.