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From: | Sam mite |
Subject: | Re: [Discuss-gnuradio] Overrun issue and packet loss |
Date: | Mon, 19 Aug 2013 12:44:52 +0500 |
I am facing Overrun issue on 500K sampling rate with USRPN210. I see an 'O' after irregular time intervals when I use my flowgrpah . PC is directly connected to USRP with Ethernet cable. PC details:
Processor: Intel® Core™ i7-2600 CPU @ 3.40GHz × 8
Memory: 3.8GiB
GNU C++ version 4.6.3; Boost_104601; UHD_003.005.000-26-gb65a3924
Gnruadio version: 3.6.3rc0
Also to check, I ran ./benchmark_rate --rx_rate 500e3 --duration 300, three times and following are the outputs:
Testing receive rate 0.500000 Msps
OO
Benchmark rate summary:
Num received samples: 149997045
Num dropped samples: 726
Num overflows detected: 2
Testing receive rate 0.500000 Msps
Benchmark rate summary:
Num received samples: 149998497
Num dropped samples: 0
Num overflows detected: 0
Testing receive rate 0.500000 Msps
OOO
Benchmark rate summary:
Num received samples: 149997408
Num dropped samples: 1089
Num overflows detected: 3
What could be the issue here? And what can I do to fix this issue as I am losing 3 to 4 packets in every 10k packets when I use my flow-graph. Any comments would be appreciated.
--
Best Regards,
Sam
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