> > > > I think many of the folks who would have comments on this are at the Gnu > > Radio conference this week.... > > > > > > > > On 08/26/2015 02:09 PM, bob wole wrote: > > > > > > > > On Tue, Aug 25, 2015 at 11:36 PM, bob wole <[email protected]> wrote: > > > >> Hi, > >> > >> I have a burst system in gnuradio which is working fine with usrps. I > >> have used tags (tx_time, tx_eob and tx_sob) to define packet boundaries > and > >> transmission time. Tags are inserted by a block which is connected > before > >> the usrp sink. I did not use any "tagged stream block" in the burst > system. > >> All the blocks used are streaming blocks. > >> > >> Now I want to insert FEC in my system. After going through the FEC API, > I > >> realized that I can use any of FEC deployments (Streaming, Tagged > stream, > >> Asynchronus). Are there any difference(s) performance wise? Which one > >> should is better for my system? > >> > >> I have attached a picture of my current system and identified where I > >> want to insert FEC in tx and rx. > >> > >> Comments are appreciated. > >> > >> -- > >> Bob > >> > > > > Comments please ? > > > > -- > > Bob > > > > > > Bob, > > The various models of handling packets through a GNU Radio system are > dependent on a few things, none of which are easy black/white issues to > describe or offer support on. Partly, it can just be your opinion on where > the lines are between the different models; or based on what blocks are > available in the different models. You don't want to go back and forth, > though, so when you move from a stream into a PDU-based system, you'll want > to stay there. > > Performance is going to be dependent on the rest of your system as well. We > can't tell you one is better than the other, but we've put in a lot of > hooks into the system to help you understand those issues for yourself, > like using the performance counters and naming each thread with the block > name so top/htop can help. > > Tom >
Hi Tom, Thanks for your detailed comment. You are always helpful. I'll learn about performance counters and will try to use them in the flowgrpahs. -- Bob
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