Bug 2203794

Summary:	[ERFE] OVS needs a way to get new flow insertion/delete rate statistics.
Product:	Red Hat Enterprise Linux Fast Datapath	Reporter:	Eelco Chaudron <echaudro>
Component:	openvswitch3.1	Assignee:	Eelco Chaudron <echaudro>
Status:	CLOSED DEFERRED	QA Contact:	ovs-qe
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	FDP 23.G	CC:	ctrautma, i.maximets, jhsiao, ralongi
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Last Closed:	2023-11-24 12:28:19 UTC	Type:	Bug
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Description Eelco Chaudron 2023-05-15 09:31:45 UTC

It would be a good troubleshooting tool to get statistics related to flow insertion and delete rates.

This should exist for both the kernel and userspace datapath, preferably something unified. In addition, it might also be nice to not only get this globally but also for offloaded flows.

Maybe we can get some kind of histogram to get the various insertions/deletions per second. Like what currently exists for PMDs only:

  ovs-vsctl set Open_vSwitch . other_config:pmd-perf-metrics=true
  ovs-appctl dpif-netdev/pmd-perf-show

Comment 1 Ilya Maximets 2023-05-19 15:35:56 UTC

FWIW, there are coverage counters for dpif_flow_get/put/del/flush
and coverage/show provides the rate information.

Comment 2 Eelco Chaudron 2023-05-22 08:19:03 UTC

(In reply to Ilya Maximets from comment #1)
> FWIW, there are coverage counters for dpif_flow_get/put/del/flush
> and coverage/show provides the rate information.

ACK, but the put one only work for the kernel datapath, as OVS-DPDK pushes the flows directly in the PMD threads.

Comment 3 Eelco Chaudron 2023-11-24 12:28:19 UTC

CLosing, as https://issues.redhat.com/browse/FDP-158 was opened.