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tohojo / flent

The FLExible Network Tester.
https://flent.org
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Run Flent with iperf #306

Closed zanearniel closed 1 month ago

zanearniel commented 1 month ago

Im new to this tool. Can u please tell the steps to generate latency and throughput plots using flent with iperf?or Is there a way to feed the iperf output to flent to generate latency and throughput plots?

tohojo commented 1 month ago

zanearniel @.***> writes:

Im new to this tool. Can u please tell the steps to generate latency and throughput plots using flent with iperf?

Iperf if not generally supported. The only test that supports iperf is the UDP bandwidth test, all the others require netperf.

zanearniel commented 1 month ago

Iperf if not generally supported. The only test that supports iperf is the UDP bandwidth test, all the others require netperf.

Oh ok.Thanks.

Im trying to see if I can send a fixed volume of data with flent test. Is there any way to have some control over rate of packet transmission?Like is there any other tool which can work on top of flent to control the data rate?Is it even possible??ur thoughts please

tohojo commented 1 month ago

zanearniel @.***> writes:

Iperf if not generally supported. The only test that supports iperf is the UDP bandwidth test, all the others require netperf. Oh ok.Thanks.

Im trying to see if I can send a fixed volume of data with flent test. Is there any way to have some control over rate of packet transmission?Like is there any other tool which can work on top of flent to control the data rate?Is it even possible??ur thoughts please

Netperf does support sending a fixed amount of data, so it would be possible to implement support for this. Could you describe your use case in a bit more detail, please? Why is it you need to send a fixed amount of data, exactly? :)

-Toke

zanearniel commented 1 month ago

Netperf does support sending a fixed amount of data, so it would be possible to implement support for this. Could you describe your use case in a bit more detail, please? Why is it you need to send a fixed amount of data, exactly? :)

Thanks for the reply! The issue is Im trying to evaluate the performance of dualpi2 qdisc. So im using rrul test to see the difference in performance but the issue is every time I run the test they packets generated are not the same always.Since I run multiple tests, I need to make sure that the amount of packets generated are the same for all the consecutive tests.Is it possible?Or is there any other way to use flent so that I can benchmark latency and throughput? :)

tohojo commented 1 month ago

zanearniel @.***> writes:

Netperf does support sending a fixed amount of data, so it would be possible to implement support for this. Could you describe your use case in a bit more detail, please? Why is it you need to send a fixed amount of data, exactly? :)

Thanks for the reply! The issue is Im trying to evaluate the performance of dualpi2 qdisc. So im using rrul test to see the difference in performance but the issue is every time I run the test they packets generated are not the same always.Since I run multiple tests, I need to make sure that the amount of packets generated are the same for all the consecutive tests.

Why does the number of packets need to be the same for each test?

Is it possible? :)

Not currently, but it would be possible to add such a feature to Flent. I don't really have the time to work on this, though, so you'd have to do some hacking yourself :)

zanearniel commented 1 month ago

Why does the number of packets need to be the same for each test?

For benchmarking purposes.

Not currently, but it would be possible to add such a feature to Flent. I don't really have the time to work on this, though, so you'd have to do some hacking yourself :)

Thanks for your time.I will try it out :) Closing the issue for now!