I also found this to sample tcp latency performance:
https://code.google.com/p/paping/

<https://code.google.com/p/paping/>Does fq_codel's flow classification
supports external classifier filter? Say I only want to hash on dst port in
my case.

Thanks
Mo


2013/12/5 Toke Høiland-Jørgensen <toke@toke.dk>

> Dong Mo <montedong@gmail.com> writes:
>
> > What I am trying to do is measure the delay of packets of the same
> > flow experienced in A under different queuing policies (sfq or
> > fq_codel).
> >
> > Is there a simple way to do this?
>
> I'm currently in the early planning stages for having something like
> this incorporated into the netperf-wrapper [1] testing tool. In the
> meantime, you could look at either thrulay [2] (old and apparently
> abandoned, but may work in one of its variants) as a measurement tool,
> or tcpprobe [3] to output statistics that can (probably) tell you.
>
> -Toke
>
> [1] https://github.com/tohojo/netperf-wrapper
>
> [2] http://e2epi.internet2.edu/thrulay/
> http://thrulay-hd.sourceforge.net/
> http://thrulay-ng.sourceforge.net/
>
> [3]
> http://www.linuxfoundation.org/collaborate/workgroups/networking/tcpprobe
>