I was doing some experiments with multi-DDC support in recent UHD+USRP2 firmware.
I thought I'd start by a simple source----->FFT Sink I discovered rather by accident that if my FFT sinks had averaging turned *OFF*, that even at modest input bandwidths on my dual-centrino laptop, they'd get wedged, even at relatively-low FFT frame rates (3 for example). But turn on averaging, and the systems resources required were reduced to the point that the display could support FFT display. I think this says something about how (in) efficient OpenGL is about rendering even simple 2D objects that change dynamically. Another test I did was: source----->LOG-POWER FFT---->NULL SINK The resources consumed by *that* were about 30% of what they were when I was actually displaying an FFT window. -- Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
