Eric Blossom wrote: > Marcus, in my experience, USB performance has not be limited by cpu > cycles. It seems to be primarily a function of the design of the host > controller, the firmware in the device, and a reasonable way to get > the data into user mode. In most apps I've benchmarked, the overhead > of all usrp related stuff is typically on the order of 5 to 10% of the > total cycles consumed. > > Eric > > OK, so improving total USB cycle counts in user mode from 10% to 5% perhaps wouldn't noticeably improve things like overruns--is that what you're saying?
So, in your experience what is the sh*t-hottest USB controller out there, and is it available on a PCI or PCI-E card? -- Marcus Leech Principal Investigator, Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
