2.0.5 is old and has multiple bugs so I wouldn't use it. Get a later
version of that or try iperf 3
https://sourceforge.net/projects/iperf2/
http://software.es.net/iperf/obtaining.html
2.0 does support multiple clients. There is no fixed limit to the number
of clients rather it will be limited by the compute resources, e.g. memory,
number CPUs, etc.
Also, with 2.0.11a and testing with TCP and want to limit the bandwidth per
client use the -b option on the server, e.g. iperf -s -b 10M will limit the
server read rate to 10 Mbs which will in turn flow control the clients to
that rate.
Bob
On Sun, Apr 22, 2018 at 2:50 AM, Ayrton Senna <ayrtonsenna.ph...@gmail.com>
wrote:
> Hello,
>
> I am new to performance testing, and I would like confirm if iperf2 can be
> used in the use case I will describe here, which is required by my employer.
>
>
> I am using iperf 2.0.5 on a single server (Ubuntu 16.04.2) and on multiple
> clients (Debian 8) to test download and upload bandwidth towards this
> server using the "-d" option. .
>
> My question is this: Can the server successfully accept and complete
> simultaneous tests from different client on the same interface, IP address,
> and port?
>
> The number of client is currently around 250 (expected to grow to around
> 950.)
>
> Server command: iperf -s -p 5002 -f m
> All clients using the command: iperf -c serverIP -d -p 5002 -f m
>
> If the answer is Yes, what are the limitations to this use case? (ex. up
> to how many client can be used.)
>
>
> Regards,
>
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