I tried with a stop-and-wait ARQ and two USRP2s with XCVR2450s, but the delay was too long and inconsistent. I can't remember the exact figures, but definitely up to milliseconds.
Veljko 2010/4/6 George Nychis <gnyc...@cmu.edu>: > > > On Tue, Apr 6, 2010 at 10:07 AM, Charles Irick <cir...@gmail.com> wrote: >> >> Thanks for the reply George. I'm still looking for a little more >> information on this topic. >> >> - What is PMT > > http://gnuradio.org/redmine/wiki/1/TypePMT > >> >> - Why was m-block removed > > http://osdir.com/ml/discuss-gnuradio-gnu/2010-01/msg00066.html > >> >> - Has anyone measured latency with the USRP2 and GigE > > I'm not sure. > >> >> - Is GigE alone not capable of handling MAC turnaround times or is >> software to blame for this > > I think the latency is on hundreds of microseconds, which is greater than, > say, an 802.11 ACK turnaround time (24us). > >> >> - Is the scheduler the main issue in the way it handles i/o between blocks > > There are some details of this in the second link I gave. > > - George > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
