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[Discuss-gnuradio] benchmark_rx kept showing 000000...


From: Weixian Zhou
Subject: [Discuss-gnuradio] benchmark_rx kept showing 000000...
Date: Thu, 7 Jun 2012 15:15:36 -0400

I had successfully transmit data without any problems using benchmark_tx/benchmark_rx moment ago:
./benchmark_rx.py -f 2.42G -r 2M
./benchmkar_tx.py -f 2.42G -r 2M

But after a few tries, the rx end started to show 0000... The wired thing is that I input the same parameters as before but the result is different:
address@hidden:~/Desktop/USRP/gnuradio/gr-digital/end$ ./benchmark_rx.py -f 2.47G -r 2M
linux; GNU C++ version 4.6.3; Boost_104601; UHD_003.004.001-129-g23344268

>>> gr_fir_ccf: using SSE
-- Opening a USRP2/N-Series device...
-- Current recv frame size: 1472 bytes
-- Current send frame size: 1472 bytes

UHD Warning:
    Unable to set the thread priority. Performance may be negatively affected.
    Please see the general application notes in the manual for instructions.
    EnvironmentError: OSError: error in pthread_setschedparam

No gain specified.
Setting gain to 49.500000 (from [0.000000, 99.000000])
Warning: Failed to enable realtime scheduling.
Using Volk machine: ssse3_32
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

I am using the two USRP N210, the daughter boards are both XCVR2450. Ubuntu 12.04, latest version of UHD and GNU Radio.
--
Regards,
Weixian Zhou



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