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GNURadio gr-radar OOT モジュールの usrp_echotimer_dual_cw の例を実行したいと考えています。

フローグラフは、内部ギガビット イーサネット アダプタでは正常に動作しますが、外部 PCI ギガビット イーサネット アダプタでは失敗します。

フローグラフの正常な実行 (eth0) の出力は次のとおりです。

Executing: "/home/christophe/new/examples/usrp/usrp_echotimer_dual_cw.py"

linux; GNU C++ version 4.8.4; Boost_105400; UHD_003.010.git-101-g4a1cb1f2

Using Volk machine: avx_64_mmx_orc
-- Opening a USRP2/N-Series device...
-- Current recv frame size: 1472 bytes
-- Current send frame size: 1472 bytes

UHD Warning:
    The recv buffer could not be resized sufficiently.
    Target sock buff size: 50000000 bytes.
    Actual sock buff size: 1000000 bytes.
    See the transport application notes on buffer resizing.
    Please run: sudo sysctl -w net.core.rmem_max=50000000

UHD Warning:
    The recv buffer could not be resized sufficiently.
    Target sock buff size: 50000000 bytes.
    Actual sock buff size: 1000000 bytes.
    See the transport application notes on buffer resizing.
    Please run: sudo sysctl -w net.core.rmem_max=50000000

UHD Warning:
    The send buffer could not be resized sufficiently.
    Target sock buff size: 1048576 bytes.
    Actual sock buff size: 1000000 bytes.
    See the transport application notes on buffer resizing.
    Please run: sudo sysctl -w net.core.wmem_max=1048576
Using USRP Device (TX): 
Single USRP:
  Device: USRP2 / N-Series Device
  Mboard 0: N210r4
  RX Channel: 0
    RX DSP: 0
    RX Dboard: A
    RX Subdev: RFX2400 RX
  TX Channel: 0
    TX DSP: 0
    TX Dboard: A
    TX Subdev: RFX2400 TX

Setting TX Rate: 14250000

UHD Warning:
    The requested interpolation is odd; the user should expect CIC rolloff.
    Select an even interpolation to ensure that a halfband filter is enabled.
    interpolation = dsp_rate/samp_rate -> 7 = (100.000000 MHz)/(14.250000 MHz)

UHD Warning:
    The hardware does not support the requested TX sample rate:
    Target sample rate: 14.250000 MSps
    Actual sample rate: 14.285714 MSps
Actual TX Rate: 1.42857e+07

UHD Warning:
    The requested interpolation is odd; the user should expect CIC rolloff.
    Select an even interpolation to ensure that a halfband filter is enabled.
    interpolation = dsp_rate/samp_rate -> 7 = (100.000000 MHz)/(14.285714 MHz)
-- Opening a USRP2/N-Series device...
-- Current recv frame size: 1472 bytes
-- Current send frame size: 1472 bytes

UHD Warning:
    The recv buffer could not be resized sufficiently.
    Target sock buff size: 50000000 bytes.
    Actual sock buff size: 1000000 bytes.
    See the transport application notes on buffer resizing.
    Please run: sudo sysctl -w net.core.rmem_max=50000000

UHD Warning:
    The recv buffer could not be resized sufficiently.
    Target sock buff size: 50000000 bytes.
    Actual sock buff size: 1000000 bytes.
    See the transport application notes on buffer resizing.
    Please run: sudo sysctl -w net.core.rmem_max=50000000

UHD Warning:
    The send buffer could not be resized sufficiently.
    Target sock buff size: 1048576 bytes.
    Actual sock buff size: 1000000 bytes.
    See the transport application notes on buffer resizing.
    Please run: sudo sysctl -w net.core.wmem_max=1048576
Using USRP Device (RX): 
Single USRP:
  Device: USRP2 / N-Series Device
  Mboard 0: USRP2 r3
  RX Channel: 0
    RX DSP: 0
    RX Dboard: A
    RX Subdev: RFX2400 RX
  TX Channel: 0
    TX DSP: 0
    TX Dboard: A
    TX Subdev: RFX2400 TX

Setting RX Rate: 14250000

UHD Warning:
    The requested decimation is odd; the user should expect CIC rolloff.
    Select an even decimation to ensure that a halfband filter is enabled.
    decimation = dsp_rate/samp_rate -> 7 = (100.000000 MHz)/(14.250000 MHz)

UHD Warning:
    The hardware does not support the requested RX sample rate:
    Target sample rate: 14.250000 MSps
    Actual sample rate: 14.285714 MSps
Actual RX Rate: 1.42857e+07

UHD Warning:
    The requested decimation is odd; the user should expect CIC rolloff.
    Select an even decimation to ensure that a halfband filter is enabled.
    decimation = dsp_rate/samp_rate -> 7 = (100.000000 MHz)/(14.285714 MHz)
set_min_output_buffer on block 5 to 4194304
set_min_output_buffer on block 6 to 4194304
set_min_output_buffer on block 7 to 4194304
set_min_output_buffer on block 8 to 4194304
set_min_output_buffer on block 9 to 4194304
set_min_output_buffer on block 17 to 4194304
set_min_output_buffer on block 18 to 4194304
set_min_output_buffer on block 19 to 4194304
set_min_output_buffer on block 20 to 4194304
set_min_output_buffer on block 21 to 4194304
set_min_output_buffer on block 22 to 4194304
// Print results
rx_time: 2:0.0476682 
velocity: -5.82422 
range: 4.83493 

// Print results
rx_time: 2:0.411017 
velocity: 0.416016 
range: 4.80168 

// Print results
rx_time: 2:0.770647 
velocity: 1.24805 
range: 4.66541 

// Print results
rx_time: 3:0.122836 
velocity: 1.24805 
range: 4.86308 

// Print results
rx_time: 3:0.489277 
velocity: 1.66406 
range: 4.80136 

// Print results
rx_time: 3:0.848081 
velocity: -15.8086 
range: 5.37644 

// Print results
rx_time: 4:0.198079 
velocity: 4.57617 
range: 5.10404 

// Print results
rx_time: 4:0.558055 
velocity: 4.99219 
range: 4.4827 

// Print results
rx_time: 4:0.917475 
velocity: -0.832031 
range: 4.62831 

// Print results
rx_time: 5:0.266247 
velocity: 6.65625 
range: 5.24577 

// Print results
rx_time: 5:0.625892 
velocity: -6.65625 
range: 5.5386

失敗した実行 (eth1) は次のようになります。

Executing: "/home/christophe/new/examples/usrp/usrp_echotimer_dual_cw.py"

linux; GNU C++ version 4.8.4; Boost_105400; UHD_003.010.git-101-g4a1cb1f2

Using Volk machine: avx_64_mmx_orc
-- Opening a USRP2/N-Series device...
-- Current recv frame size: 1472 bytes
-- Current send frame size: 1472 bytes

UHD Warning:
    The recv buffer could not be resized sufficiently.
    Target sock buff size: 50000000 bytes.
    Actual sock buff size: 1000000 bytes.
    See the transport application notes on buffer resizing.
    Please run: sudo sysctl -w net.core.rmem_max=50000000

UHD Warning:
    The recv buffer could not be resized sufficiently.
    Target sock buff size: 50000000 bytes.
    Actual sock buff size: 1000000 bytes.
    See the transport application notes on buffer resizing.
    Please run: sudo sysctl -w net.core.rmem_max=50000000

UHD Warning:
    The send buffer could not be resized sufficiently.
    Target sock buff size: 1048576 bytes.
    Actual sock buff size: 1000000 bytes.
    See the transport application notes on buffer resizing.
    Please run: sudo sysctl -w net.core.wmem_max=1048576
Using USRP Device (TX): 
Single USRP:
  Device: USRP2 / N-Series Device
  Mboard 0: N210r4
  RX Channel: 0
    RX DSP: 0
    RX Dboard: A
    RX Subdev: RFX2400 RX
  TX Channel: 0
    TX DSP: 0
    TX Dboard: A
    TX Subdev: RFX2400 TX

Setting TX Rate: 14250000

UHD Warning:
    The requested interpolation is odd; the user should expect CIC rolloff.
    Select an even interpolation to ensure that a halfband filter is enabled.
    interpolation = dsp_rate/samp_rate -> 7 = (100.000000 MHz)/(14.250000 MHz)

UHD Warning:
    The hardware does not support the requested TX sample rate:
    Target sample rate: 14.250000 MSps
    Actual sample rate: 14.285714 MSps
Actual TX Rate: 1.42857e+07

UHD Warning:
    The requested interpolation is odd; the user should expect CIC rolloff.
    Select an even interpolation to ensure that a halfband filter is enabled.
    interpolation = dsp_rate/samp_rate -> 7 = (100.000000 MHz)/(14.285714 MHz)
-- Opening a USRP2/N-Series device...
-- Current recv frame size: 1472 bytes
-- Current send frame size: 1472 bytes

UHD Warning:
    The recv buffer could not be resized sufficiently.
    Target sock buff size: 50000000 bytes.
    Actual sock buff size: 1000000 bytes.
    See the transport application notes on buffer resizing.
    Please run: sudo sysctl -w net.core.rmem_max=50000000

UHD Warning:
    The recv buffer could not be resized sufficiently.
    Target sock buff size: 50000000 bytes.
    Actual sock buff size: 1000000 bytes.
    See the transport application notes on buffer resizing.
    Please run: sudo sysctl -w net.core.rmem_max=50000000

UHD Warning:
    The send buffer could not be resized sufficiently.
    Target sock buff size: 1048576 bytes.
    Actual sock buff size: 1000000 bytes.
    See the transport application notes on buffer resizing.
    Please run: sudo sysctl -w net.core.wmem_max=1048576
Using USRP Device (RX): 
Single USRP:
  Device: USRP2 / N-Series Device
  Mboard 0: USRP2 r3
  RX Channel: 0
    RX DSP: 0
    RX Dboard: A
    RX Subdev: RFX2400 RX
  TX Channel: 0
    TX DSP: 0
    TX Dboard: A
    TX Subdev: RFX2400 TX

Setting RX Rate: 14250000

UHD Warning:
    The requested decimation is odd; the user should expect CIC rolloff.
    Select an even decimation to ensure that a halfband filter is enabled.
    decimation = dsp_rate/samp_rate -> 7 = (100.000000 MHz)/(14.250000 MHz)

UHD Warning:
    The hardware does not support the requested RX sample rate:
    Target sample rate: 14.250000 MSps
    Actual sample rate: 14.285714 MSps
Actual RX Rate: 1.42857e+07

UHD Warning:
    The requested decimation is odd; the user should expect CIC rolloff.
    Select an even decimation to ensure that a halfband filter is enabled.
    decimation = dsp_rate/samp_rate -> 7 = (100.000000 MHz)/(14.285714 MHz)
set_min_output_buffer on block 5 to 4194304
set_min_output_buffer on block 6 to 4194304
set_min_output_buffer on block 7 to 4194304
set_min_output_buffer on block 8 to 4194304
set_min_output_buffer on block 9 to 4194304
set_min_output_buffer on block 17 to 4194304
set_min_output_buffer on block 18 to 4194304
set_min_output_buffer on block 19 to 4194304
set_min_output_buffer on block 20 to 4194304
set_min_output_buffer on block 21 to 4194304
set_min_output_buffer on block 22 to 4194304
DReceive timeout before all samples received...
ULLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLterminate called after throwing an instance of 'std::runtime_error'
  what():  Receiver error ERROR_CODE_OVERFLOW (Out of sequence error)

これらは私のネットワークカードです：

[0] christophe:~ % lspci -nn | grep -i ethernet         
00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit Network Connection [8086:1502] (rev 04)
02:05.0 Ethernet controller [0200]: Intel Corporation 82541PI Gigabit Ethernet Controller [8086:107c] (rev 05)

そのフローグラフははるかに弱いラップトップ pc (インテル コア 2 デュオ) では正常に動作しますが、i7 デスクトップ pc では失敗するため、コンピューターのパフォーマンスとは関係ないと思います。

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1 に答える 1

1 
00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit Network Connection [8086:1502] (rev 04)

82579LM は、オペレーティング システムに通知せずにパケットをランダムにドロップする既知の唯一の非 USB ギガビット イーサネット アダプタです。

残念ながら、別の PCIe-Gigabit アダプターを使用する必要があります。

ちなみに、Lは、パケット (通常、USRP が実行するためのコマンドを含む) が、コマンドが発生するように指定された時間よりも遅いことを意味します。

Lget が出力されるソース コード:

else if (metadata.event_code &
    async_metadata_t::EVENT_CODE_TIME_ERROR
) UHD_MSG(fastpath) << "L";

さて、EVENT_CODE_TIME_ERROR つまり

パケットが遅れる時間がありました。

これは、ネットワーク カードが以前にパケットをドロップした結果である可能性があり、何らかの理由でタイミング コマンドが順不同になったり、アプリケーションが混乱したりします。通常、これはアプリケーションの設計ミスを示していますが、ネットワーク ハードウェアには間違いなくバグがあるため (コントローラーが何度も失敗するのを確認しました。申し訳ありません)、さらに調査する前にまずそれを修正します。

于 2016-01-08T11:42:34.343 に答える