Network stack performance

Claus, Ric claus at
Tue Nov 26 21:30:47 UTC 2013

This is something that I’ve been interested in and working on for awhile now.   In particular, I’ve been trying to build iperf using RTEMS tools for the ARM Cortex-A9 (targeting a Zynq based eval board), but am not getting very far.  The compile dies on lacking a definition for the int64_t type, which the code expects to find by including <sys/types.h>, amongst other things.  I am struggling with what might be the “right” way to address this.  Do you have any suggestions?


On Nov 6, 2013, at 8:59 AM, Gedare Bloom <gedare at> wrote:

> The Iperf tool [1] can be used to evaluate RTEMS networking stack
> performance. Iperf works by instantiating an Iperf server on machine 1
> and connecting from an Iperf client on machine 2, which will send data
> as fast as possible to the server. By first measuring the receive
> bandwidth of machine 1 (server) when machine 1 and machine 2 run
> Linux, the receive bandwidth of machine 1 when machine 1 runs Linux
> and machine 2 runs RTEMS can be used to evaluate the performance of
> the RTEMS networking stack.
> This might be an interesting project to try to get working (with a lab
> setup). Minix/NewtOS used it to evaluate the performance of their
> networking stack as described in
> -Gedare
> [1]
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