On 01/17/2020 05:36 PM, Johannes Demel wrote:
Hi Marcus,
`sudo ip link set mtu 9000 dev [my10Ginterface]` fixed this issue. Thanks! That
totally slipped through.
Cheers
Johannes
Glad this helped!
Looking at your CPU, it should easily be capable, so the MTU issue makes
the most sense...
________________________________________
Von: USRP-users <[email protected]> im Auftrag von Marcus D. Leech
via USRP-users <[email protected]>
Gesendet: Freitag, 17. Januar 2020 20:12
An: [email protected]
Betreff: Re: [USRP-users] N310 with lots of 'SU' at higher rates
On 01/17/2020 04:13 AM, Johannes Demel via USRP-users wrote:
Hi all,
I use an N310 with Ubuntu 18.04.3 with an Intel X710 and an AMD 3970X.
[INFO] [UHD] linux; GNU C++ version 7.4.0; Boost_106501;
UHD_3.15.0.0-0-gaea0e2de
If I run:
`./benchmark_rate --args "addr=192.168.20.217" --tx_rate 15.625e6`
Everything looks fine. It just works without any Underruns etc.
But if I go to:
`./benchmark_rate --args "addr=192.168.20.217" --tx_rate 31.25e6`
or
`./benchmark_rate --args "addr=192.168.20.217" --tx_rate 62.5e6`
Things are broken. Especially lots of `SU`s. I append the complete
output. I have the same problem in my application.
How do I fix this? Or is there even a fix? I already went through lots
of the ettus kb and so far, I didn't find a hint.
Cheers
Johannes
[INFO] [UHD] linux; GNU C++ version 7.4.0; Boost_106501;
UHD_3.15.0.0-0-gaea0e2de
[00:00:00.000003] Creating the usrp device with: addr=192.168.20.217...
[INFO] [MPMD] Initializing 1 device(s) in parallel with args:
mgmt_addr=192.168.20.217,type=n3xx,product=n310,serial=XXXXXX,claimed=False,addr=192.168.20.217
[WARNING] [MPM.RPCServer] A timeout event occured!
[INFO] [MPM.PeriphManager] init() called with device args
`clock_source=internal,product=n310,time_source=internal,mgmt_addr=192.168.20.217'.
[INFO] [0/Replay_0] Initializing block control (NOC ID: 0x4E91A00000000004)
[INFO] [0/Radio_0] Initializing block control (NOC ID: 0x12AD100000011312)
[INFO] [0/Radio_1] Initializing block control (NOC ID: 0x12AD100000011312)
[INFO] [0/DDC_0] Initializing block control (NOC ID: 0xDDC0000000000000)
[INFO] [0/DDC_1] Initializing block control (NOC ID: 0xDDC0000000000000)
[INFO] [0/DUC_0] Initializing block control (NOC ID: 0xD0C0000000000002)
[INFO] [0/DUC_1] Initializing block control (NOC ID: 0xD0C0000000000002)
[INFO] [0/FIFO_0] Initializing block control (NOC ID: 0xF1F0000000000000)
[INFO] [0/FIFO_1] Initializing block control (NOC ID: 0xF1F0000000000000)
[INFO] [0/FIFO_2] Initializing block control (NOC ID: 0xF1F0000000000000)
[INFO] [0/FIFO_3] Initializing block control (NOC ID: 0xF1F0000000000000)
Using Device: Single USRP:
Device: N300-Series Device
Mboard 0: ni-n3xx-31AFFD4
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: Magnesium
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: Magnesium
RX Channel: 2
RX DSP: 0
RX Dboard: B
RX Subdev: Magnesium
RX Channel: 3
RX DSP: 1
RX Dboard: B
RX Subdev: Magnesium
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: Magnesium
TX Channel: 1
TX DSP: 1
TX Dboard: A
TX Subdev: Magnesium
TX Channel: 2
TX DSP: 0
TX Dboard: B
TX Subdev: Magnesium
TX Channel: 3
TX DSP: 1
TX Dboard: B
TX Subdev: Magnesium
[00:00:04.325114] Setting device timestamp to 0...
[00:00:04.426672] Testing transmit rate 62.500000 Msps on 1 channels
UUSUSUSUSUUSUSUSUUSUUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUSUS[00:00:14.777480]
Benchmark complete.
Benchmark rate summary:
Num received samples: 0
Num dropped samples: 0
Num overruns detected: 0
Num transmitted samples: 154596064
Num sequence errors (Tx): 3155
Num sequence errors (Rx): 0
Num underruns detected: 3163
Num late commands: 0
Num timeouts (Tx): 0
Num timeouts (Rx): 0
Done!
[ERROR] [UHD] An unexpected exception was caught in a task loop.The task
loop will now exit, things may not work.rpc::timeout: Timeout of 10000ms
while calling RPC function 'reclaim'
[ERROR] [RPC] get_log_buf() called without valid claim.
[ERROR] [UHD] Exception caught in safe-call.
in uhd::mpmd::mpmd_mboard_impl::~mpmd_mboard_impl()
at
/home/johannes/prefix/gnuradio/src/uhd/host/lib/usrp/mpmd/mpmd_mboard_impl.cpp:311
dump_logs(); _claimer_task.reset(); _xport_mgr.reset(); if (not
rpc->request_with_token<bool>("unclaim")) {
uhd::_log::log(uhd::log::warning,
"/home/johannes/prefix/gnuradio/src/uhd/host/lib/usrp/mpmd/mpmd_mboard_impl.cpp",
311, "MPMD", boost::this_thread::get_id()) << "Failure to ack
unclaim!";; } -> RuntimeError: Error during RPC call to `get_log_buf'.
Error message: get_log_buf() called without valid claim.
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USRP-users mailing list
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Could you send us the output of:
ifconfig
or
ip link
In particular, what is the MTU on your 10G interface?
Are you running your CPU in "performance" mode or some other,
lower-speed mode?
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