Hello Rob!
I should have mentioned this in my original post but benchmark rate works well
for me. Specifically, when I run:
```
./benchmark_rate --rx_rate 491.52e6 --args
"addr=192.168.10.2,second_addr=192.168.20.2,mgmt_addr=192.168.1.19" --duration
600
```
I get
```
[INFO] [UHD] linux; GNU C++ version 9.4.0; Boost_107100; DPDK_19.11;
UHD_4.6.0.HEAD-0-g50fa3baa
```
```
[00:00:00.000322] Creating the usrp device with:
addr=192.168.10.2,second_addr=192.168.20.2,mgmt_addr=192.168.1.19...
```
```
[INFO] [MPMD] Initializing 1 device(s) in parallel with args:
mgmt_addr=192.168.1.19,type=x4xx,product=x410,serial=326E872,name=ni-x4xx-326E872,fpga=CG_400,claimed=False,addr=192.168.10.2,second_addr=192.168.20.2
```
```
[INFO] [MPM.PeriphManager] init() called with device args
`fpga=CG_400,mgmt_addr=192.168.1.19,name=ni-x4xx-326E872,product=x410,second_addr=192.168.20.2,clock_source=internal,time_source=internal,initializing=True'.
```
```
Using Device: Single USRP:
```
```
Device: X400-Series Device
```
```
Mboard 0: x410
```
```
RX Channel: 0
```
```
RX DSP: n/a
```
```
RX Dboard: A
```
```
RX Subdev: 0
```
```
RX Channel: 1
```
```
RX DSP: n/a
```
```
RX Dboard: A
```
```
RX Subdev: 1
```
```
RX Channel: 2
```
```
RX DSP: n/a
```
```
RX Dboard: B
```
```
RX Subdev: 0
```
```
RX Channel: 3
```
```
RX DSP: n/a
```
```
RX Dboard: B
```
```
RX Subdev: 1
```
```
TX Channel: 0
```
```
TX DSP: n/a
```
```
TX Dboard: A
```
```
TX Subdev: 0
```
```
TX Channel: 1
```
```
TX DSP: n/a
```
```
TX Dboard: A
```
```
TX Subdev: 1
```
```
TX Channel: 2
```
```
TX DSP: n/a
```
```
TX Dboard: B
```
```
TX Subdev: 0
```
```
TX Channel: 3
```
```
TX DSP: n/a
```
```
TX Dboard: B
```
```
TX Subdev: 1
```
```
[00:00:03.511001021] Setting device timestamp to 0...
```
```
[00:00:03.512894034] Testing receive rate 491.520000 Msps on 1 channels
```
```
[00:10:03.513454979] Benchmark complete.
```
```
Benchmark rate summary:
```
```
Num received samples: 294911842520
```
```
Num dropped samples: 0
```
```
Num overruns detected: 0
```
```
Num transmitted samples: 0
```
```
Num sequence errors (Tx): 0
```
```
Num sequence errors (Rx): 0
```
```
Num underruns detected: 0
```
```
Num late commands: 0
```
```
Num timeouts (Tx): 0
```
```
Num timeouts (Rx): 0
```
```
Done!
```
When I use the example that saves to file:
./rx_samples_to_file --args
"addr=192.168.10.2,second_addr=192.168.20.2,mgmt_addr=192.168.1.19" --file
\[path\] --duration 10 --rate 491.52e6 --freq 1575.42e6
I get :
```
Creating the usrp device with:
addr=192.168.10.2,second_addr=192.168.20.2,mgmt_addr=192.168.1.19...
```
```
[INFO] [UHD] linux; GNU C++ version 9.4.0; Boost_107100; DPDK_19.11;
UHD_4.6.0.HEAD-0-g50fa3baa
```
```
[INFO] [MPMD] Initializing 1 device(s) in parallel with args:
mgmt_addr=192.168.1.19,type=x4xx,product=x410,serial=326E872,name=ni-x4xx-326E872,fpga=CG_400,claimed=False,addr=192.168.10.2,second_addr=192.168.20.2
```
```
[INFO] [MPM.PeriphManager] init() called with device args
`fpga=CG_400,mgmt_addr=192.168.1.19,name=ni-x4xx-326E872,product=x410,second_addr=192.168.20.2,clock_source=internal,time_source=internal,initializing=True'.
```
```
Using Device: Single USRP:
```
```
Device: X400-Series Device
```
```
Mboard 0: x410
```
```
RX Channel: 0
```
```
RX DSP: n/a
```
```
RX Dboard: A
```
```
RX Subdev: 0
```
```
RX Channel: 1
```
```
RX DSP: n/a
```
```
RX Dboard: A
```
```
RX Subdev: 1
```
```
RX Channel: 2
```
```
RX DSP: n/a
```
```
RX Dboard: B
```
```
RX Subdev: 0
```
```
RX Channel: 3
```
```
RX DSP: n/a
```
```
RX Dboard: B
```
```
RX Subdev: 1
```
```
TX Channel: 0
```
```
TX DSP: n/a
```
```
TX Dboard: A
```
```
TX Subdev: 0
```
```
TX Channel: 1
```
```
TX DSP: n/a
```
```
TX Dboard: A
```
```
TX Subdev: 1
```
```
TX Channel: 2
```
```
TX DSP: n/a
```
```
TX Dboard: B
```
```
TX Subdev: 0
```
```
TX Channel: 3
```
```
TX DSP: n/a
```
```
TX Dboard: B
```
```
TX Subdev: 1
```
```
Setting RX Rate: 491.520000 Msps...
```
```
Actual RX Rate: 491.520000 Msps...
```
```
Setting RX Freq: 1575.420000 MHz...
```
```
Setting RX LO Offset: 0.000000 MHz...
```
```
[WARNING] [MULTI_USRP] No DSP capabilities detected. Combining offset into
target frequency of 1575.420MHz
```
```
Actual RX Freq: 1575.420000 MHz...
```
```
Locking LO on channel 0
```
```
Waiting for "lo_locked": ++++++++++ locked.
```
```
Press Ctrl + C to stop streaming...
```
```
Disk write test indicates that an overflow is likely to occur.
```
```
Your write medium must sustain a rate of 1966.080MB/s,
```
```
but write test returned write speed of 184.000MB/s.
```
```
The disk write rate is also affected by system load
```
```
and OS/disk caching capacity.
```
```
OGot an overflow indication. Please consider the following:
```
```
Your write medium must sustain a rate of 1966.080MB/s.
```
```
Dropped samples will not be written to the file.
```
```
Please modify this example for your purposes.
```
```
This message will not appear again.
```
```
OOOOOO^C
```
```
Done!
```
Which I abort since I get overruns.
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