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Re: [Discuss-gnuradio] Losing samples in the flowgraph
From: |
Michael Höin |
Subject: |
Re: [Discuss-gnuradio] Losing samples in the flowgraph |
Date: |
Mon, 25 Jul 2011 10:20:09 +0200 |
Thanks for all replies.
> This seems very unexpected.
> Can you attach a python script that demonstrates the problem?
This is the workflow with the problem:
www.zhaw.ch/~hoim/Flow.py
With the command:
diff -u test1.txt test.txt | diffstat
after two runs I searched in the vector-sinks the differences. Typically
blocks of some thousand samples were at the output of the
(self.ofdm_symbole,0) loss.
Completness the sourcecode of my two blocks:
www.zhaw.ch/~hoim/howto_ofdm_symbol_cutter_cc.cc
www.zhaw.ch/~hoim/howto_framestart_detecter_cc.cc
This is the file for the file-source:
http://www.zhaw.ch/~hoim/Record1.dat
> Are you resizing the udp socket buffer?
Is this important? How can I do that?
I tried also "sudo nice -n -20 ./Flow.py" but the problem was still the
same.
With the command "top" I see that no memory-use increases or something
like that.
Thanks for your help.
Michael