[INFO] [0/DmaFIFO_0] Initializing block control (NOC ID: 0xF1F0D00000000004)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1336 MB/s)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1338 MB/s)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1346 MB/s)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1350 MB/s)
[INFO] [0/Radio_0] Initializing block control (NOC ID: 0x12AD100000000310)
[INFO] [0/Radio_1] Initializing block control (NOC ID: 0x12AD100000000310)
[INFO] [0/Radio_2] Initializing block control (NOC ID: 0x12AD100000000310)
[INFO] [0/Radio_3] Initializing block control (NOC ID: 0x12AD100000000310)
[INFO] [0/DDC_0] Initializing block control (NOC ID: 0xDDC0000000000001)
[INFO] [0/DDC_1] Initializing block control (NOC ID: 0xDDC0000000000001)
[INFO] [0/DDC_2] Initializing block control (NOC ID: 0xDDC0000000000001)
[INFO] [0/DDC_3] Initializing block control (NOC ID: 0xDDC0000000000001)
[INFO] [0/DUC_0] Initializing block control (NOC ID: 0xD0C0000000000000)
[INFO] [0/DUC_1] Initializing block control (NOC ID: 0xD0C0000000000000)
[INFO] [0/DUC_2] Initializing block control (NOC ID: 0xD0C0000000000000)
[INFO] [0/DUC_3] Initializing block control (NOC ID: 0xD0C0000000000000)
Using Device: Single USRP:
Device: N300-Series Device
Mboard 0: ni-n3xx-313ABDA
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: Magnesium
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: Magnesium
TX Channel: 1
TX DSP: 0
TX Dboard: B
TX Subdev: Magnesium
TX Channel: 2
TX DSP: 0
TX Dboard: C
TX Subdev: Magnesium
TX Channel: 3
TX DSP: 0
TX Dboard: D
TX Subdev: Magnesium
Setting RX Rate: 2.500000 Msps...
Actual RX Rate: 2.500000 Msps...
Setting RX Freq: 98.500000 MHz...
Actual RX Freq: 98.500000 MHz...
Setting RX Gain: 50.000000 dB...
Actual RX Gain: 50.000000 dB...
Checking RX: all_los: locked ...
Done!
Included with the UHD driver example programs is a utility,
benchmark_rate
to benchmark the transport link of the system.
A system's maximum performance is dependent upon many factors.
benchmark_rate
will exercise the transport link and CPU of the system.
NOTE: This example requires the
HG
FPGA image to be loaded.
N300/N310
This example will test one full-duplex stream using "RF0/A:0", at a rate of 3.84 MS/s, for 60 seconds:
/usr/local/lib/uhd/examples/benchmark_rate \
--args "type=n3xx,mgmt_addr=192.168.1.151,addr=192.168.10.2,master_clock_rate=122.88e6" \
--duration 60 \
--channels "0" \
--rx_rate 3.84e6 \
--rx_subdev "A:0" \
--tx_rate 3.84e6 \
--tx_subdev "A:0"
N310
This example will test four full-duplex streams at 1.25 MS/s, for 60 seconds:
/usr/local/lib/uhd/examples/benchmark_rate \
--args "type=n3xx,mgmt_addr=192.168.1.151,addr=192.168.10.2,master_clock_rate=125e6" \
--duration 60 \
--channels "0,1,2,3" \
--rx_rate 1.25e6 \
--rx_subdev "A:0 A:1 B:0 B:1" \
--tx_rate 1.25e6 \
--tx_subdev "A:0 A:1 B:0 B:1"
N320/N321
This example will test one full-duplex stream using "RF0/A:0", at a rate of 3.84 MS/s, for 60 seconds:
/usr/local/lib/uhd/examples/benchmark_rate \
--args "type=n3xx,mgmt_addr=192.168.1.151,addr=192.168.10.2,master_clock_rate=245.76e6" \
--duration 60 \
--channels "0" \
--rx_rate 3.84e6 \
--rx_subdev "A:0" \
--tx_rate 3.84e6 \
--tx_subdev "A:0"
When streaming samples over a 1 Gb transport link, the maximum accumulative rate for all channels is 25 MS/s with a
sc16
OTW format. To achieve
higher streaming rates, it is recommended to use the 10 Gb interfaces.
