netdev - tperf: An initial TSN Performance Utility

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Date:   Tue, 3 Dec 2019 10:00:15 +0000
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     Joao Pinto <Joao.Pinto@...opsys.com>,
        Jesus Sanchez-Palencia <jesus.sanchez-palencia@...el.com>,
        Vinicius Costa Gomes <vinicius.gomes@...el.com>,
        Vladimir Oltean <olteanv@...il.com>
Subject: tperf: An initial TSN Performance Utility

Hi netdev,

[ I added in cc the people I know that work with TSN stuff, please add 
anyone interested ]

We are currently using a very basic tool for monitoring the CBS 
performance of Synopsys-based NICs which we called tperf. This was based 
on a patchset submitted by Jesus back in 2017 so credits to him and 
blames on me :)

The current version tries to send "dummy" AVTP packets, and measures the 
bandwidth of both receiver and sender. By using this tool in conjunction 
with iperf3 we can check if CBS reserved queues are behaving correctly 
by reserving the priority traffic for AVTP packets.

You can checkout the tool in the following address:
	GitHub: https://github.com/joabreu/tperf

We are open to improve this to more robust scenarios, so that we can 
have a common tool for TSN testing that's at the same time light 
weighted and precise.

Anyone interested in helping ?

---
Thanks,
Jose Miguel Abreu