Mention of "non-commercial purposes only" would seem to me to render
The enclosed software and documentation includes copyrighted works
of Hewlett-Packard Co. For as long as you comply with the following
limitations, you are hereby authorized to (i) use, reproduce, and
modify the software and documentation, and to (ii) distribute the
software and documentation, including modifications, for
non-commercial purposes only.
As far as I know, the old netperf has always been regarded as non-free,
but there's a newer GPL'd version (netperf4) as well.