Hi, I am unfamiliar with Octave, so I cannot be sure about your particular scenario, but a potential problem could be internal buffering between writes... Maybe try flushing the stream more?
Kunal On Fri, Jul 30, 2010 at 11:09 AM, George Nychis <gnyc...@gmail.com> wrote: > Hi all, > > Has anyone had any luck achieving high throughput (e.g., supporting > interpolation of 8 or 16 with USRP2) from Octave to a GNU Radio flowgraph? > I am trying to stream a signal to my GR flowgraph, and at first I tried > sockets but then realized it was way too slow, and so I moved to pipes but I > am also finding it cannot keep up. > > I have tried writing/reading in larger blocks, such as using an fwrite() in > Octave of size 20480, and then attempting a larger read within GNU Radio > using a gr.file_source(20480,'/tmp/mypipe') and then converting it to a > stream for the USRP2 with gr.vector_to_stream(gr.sizeof_gr_complex,20480). > But alas, still no luck... I am under-running like crazy from the looks of > my spectrum. > > Has anyone had any better luck? > > Thanks! > 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
