Here is a good starting link: https://fasterdata.es.net/host-tuning/linux/
Speaking for iperf2, the -w window size sets the socket buffer size.
There has been a lot of effort to reduce the windows per the buffer bloat
problem <https://fasterdata.es.net/host-tuning/linux/>.
What exactly are you trying to influence with TCP by adjusting the window
sizes?
If you use iperf 2.0.11 <https://sourceforge.net/projects/iperf2/> with -e
and --vary-load you can get an idea how the congestion window and the RTT
are responding per the TCP offered load.
Bob
On Fri, May 25, 2018 at 1:39 PM, Kaliaperumal, Rajesh <
rajesh.kaliaperu...@arris.com> wrote:
> Hi all,
>
> Can anyone explain or point me to some documentation that
> explains how iPerf3 and iPerf2 handles the window size parameter?
>
>
>
> I am trying to understand how to use this attribute for influencing the
> TCP performance.
>
>
>
> Thanks and regards,
>
> Rajesh K
>
>
>
>
>
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