Re: why udp source and sink not work effieciny in gnuradio?

[Fabian Schwartau]

Hi,
my guess would be that the file source and UDP sink are much faster than 
the UDP source and QT GUI Sink. As UDP is "fire and forget", the 
"transmitter" may be pushing more data over the network than the QT GUI 
Sink can handle.
To test this, you can replace the QT GUI Sink with a NULL sink, which 
just deletes the data. Or you can add a throttle block after the File 
Source to reduce the data rate.

Best,
Fabian

Am 04.07.23 um 09:07 schrieb sp:
> why do UDP source and sink not work efficiently in Gnuradio?
> I want to use a UDP  source and sink in Gnuradio, for a low sample rate 
> of 10k I see that there is too many packet drop. why network tools does 
> not work effectively?
> can anyone guide you? thanks in advance
>
> *more info:*
> I set payload size 1408 I set send null pkt as true or false all  state 
> I had not a good response
> see the screenshot and log
>
> Screenshot from 2023-07-04 10-30-22.png
>
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet.
> gr::log :WARN: udp_source0 - Too much data; dropping packet