Iperf 2 site has a man page. Make install will install the man page per the latest version. You'll want to compile from source for bounceback. Branch of master or 2-1-8-rc has that code. It will be generally released with 2.1.8 when that's complete and fully tested.
https://iperf2.sourceforge.io/iperf-manpage.html https://sourceforge.net/p/iperf2/code/ci/master/tree/doc/CLOCKSYNC_NOTES Bob On Sat, Jul 16, 2022, 1:07 AM Ohad Vano <ohadv...@gmail.com> wrote: > I am interested in measuring network latency over TCP connection. > Where can I find documentation for these flags? (such as the --boundback > or --trip-times) > Can't find these on the iperf website documentation. > > Ohad > > > On Sat, Jul 16, 2022 at 12:40 AM Bob McMahon <bob.mcma...@broadcom.com> > wrote: > >> "IPerf 2 <https://sourceforge.net/projects/iperf2/> is different from >> the iperf3 <https://github.com/esnet/iperf>. Each can be used to measure >> network performance, however, they DO NOT interoperate. They are completely >> independent implementations with different strengths, different options, >> and different capabilities. Both are under active development" >> >> iperf 2 latency & one way delay (OWD) results are reliable assuming one >> has synchronized the clocks to a common reference. Tests such as >> --bounceback don't require clock sync as it uses a TCP round trip >> measurement, i.e. write() to read() and back. >> >> Bob >> >> On Fri, Jul 15, 2022 at 1:16 PM Ohad Vano <ohadv...@gmail.com> wrote: >> >>> Hi, >>> >>> I can't find a way to measure latency over TCP using iperf3. I think >>> that this feature is supported in iperf2. Why isn't this supported in >>> iperf3? Are the iperf2 results reliable? >>> >>> Thanks, >>> Ohad >>> _______________________________________________ >>> Iperf-users mailing list >>> Iperf-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/iperf-users >>> >> >> This electronic communication and the information and any files >> transmitted with it, or attached to it, are confidential and are intended >> solely for the use of the individual or entity to whom it is addressed and >> may contain information that is confidential, legally privileged, protected >> by privacy laws, or otherwise restricted from disclosure to anyone else. If >> you are not the intended recipient or the person responsible for delivering >> the e-mail to the intended recipient, you are hereby notified that any use, >> copying, distributing, dissemination, forwarding, printing, or copying of >> this e-mail is strictly prohibited. If you received this e-mail in error, >> please return the e-mail to the sender, delete it from your computer, and >> destroy any printed copy of it. > > -- This electronic communication and the information and any files transmitted with it, or attached to it, are confidential and are intended solely for the use of the individual or entity to whom it is addressed and may contain information that is confidential, legally privileged, protected by privacy laws, or otherwise restricted from disclosure to anyone else. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, you are hereby notified that any use, copying, distributing, dissemination, forwarding, printing, or copying of this e-mail is strictly prohibited. If you received this e-mail in error, please return the e-mail to the sender, delete it from your computer, and destroy any printed copy of it.
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