No harm done :) So the point is that DDDD is still pretty bad, and usually shouldn't happen, unless your PC is *much* too slow, and usually would be preceeded by a couple of "O". There's two cases where this doesn't happen: * Too small network buffers * strangely misbehaving network hardware.
So: what is your network card? Best regards, Marcus On 15.04.2016 14:32, monika bansal wrote: > Yes my mistake :). Sorry for that. I just did not think of the python > block at that time and then after i realized. > > Regards, > Monika > > On Fri, Apr 15, 2016 at 5:17 PM, Marcus Müller > <marcus.muel...@ettus.com <mailto:marcus.muel...@ettus.com>> wrote: > > Monika, > > no offense, but when you report a problem with software, it's > pretty crucial you point out whether you've modified the software > or not :) > > Best regards, > Marcus > > > On 15.04.2016 06:28, monika bansal wrote: >> Hii, >> >> Thank you for your help. >> That "DDDD" issue is not coming with original benchmark files. >> I added one python block in between the chain in benchmark code. >> I think due to which it was not fast enough to process the >> incoming data resulting "DDDD" issue. >> >> Regards, >> Monika >> >> On Tue, Apr 5, 2016 at 11:51 PM, <mle...@ripnet.com >> <mailto:mle...@ripnet.com>> wrote: >> >> What if you make the file "/dev/null" -- does this still happen? >> >> >> >> >> >> >> >> On 2016-04-05 14:12, monika bansal wrote: >> >>> Hii, >>> >>> I am running benchmark code and on the receiver side after >>> receiving some number of packets(8000 so), it starts showing >>> overflow errors ("DDDD") on terminal. >>> Following is the system configuration >>> >>> python benchmark_rx.py -f 1100M --args "addr=10.32.38.163" >>> --to-file=/home/ashokbandi/GNU/a_rx.txt --bandwidth=500000 >>> >>> Decreasing the bandwidth delays the error. >>> >>> I tried changing buffer size by setting net.core.rmem_max >>> and net.core.wmem_max to 33445532 but to no avail. >>> >>> >>> Following is the screen shot of terminal >>> >>> DDok: True pktno: 24116 n_rcvd: 9730 n_right: >>> 9723 >>> DDDDDDDDok: True pktno: 24182 n_rcvd: 9731 >>> n_right: 9724 >>> DDDDDDDDDDDDDDok: True pktno: 24319 n_rcvd: 9732 >>> n_right: 9725 >>> DDDDDDDDDDDDDDDDok: True pktno: 24442 n_rcvd: 9733 >>> n_right: 9726 >>> DDDok: True pktno: 24477 n_rcvd: 9734 >>> n_right: 9727 >>> DDDDDDDDDok: True pktno: 24568 n_rcvd: 9735 >>> n_right: 9728 >>> >>> DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDok: >>> False pktno: 22729 n_rcvd: 9736 n_right: 9728 >>> >>> >>> Thanks >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org> >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> > >
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