Hello everyone. I'm using a setup consisting of a 4pffc SOM connected to a Jetson Orin NX (nvidia hardware). I tested the bandwidth of the system when Usb::SUPER_PLUS using the [oak_bandwidth_test.py](https://github.com/luxonis/depthai-experiments/blob/master/random-scripts/oak_bandwidth_test.py) script in depthai-experiments. * The Jetson Orin NX accepts up to 10gb/s (**USB 3.2 Gen 2** ) in host mode and 5gb/s (**USB 3.2 Gen 1**)in device mode. Since the SOM is the device i issume the jetson is able to consume all incoming datas. The cable is also **USB 3.2 Gen 2** compliant. * As you can see in the code , the bandwidth was set to SUPER_PLUS. I get the following results from the script : ``` Downlink 2414.5 mbps Uplink 2229.0 mbps ``` So the bandwidth is clearly stuck at 5gb/s. Can anyone help ?

@"jakaskerl"#p26677 Thank you for helping me check. Just to be sure you used the [oak_bandwidth_test.py](https://github.com/luxonis/depthai-experiments/blob/master/random-scripts/oak_bandwidth_test.py) script right ?

Bandwidth with SUPER_PLUS

BearrGod

Hello everyone. I'm using a setup consisting of a 4pffc SOM connected to a Jetson Orin NX (nvidia hardware). I tested the bandwidth of the system when Usb::SUPER_PLUS using the oak_bandwidth_test.py script in depthai-experiments.

The Jetson Orin NX accepts up to 10gb/s (USB 3.2 Gen 2 ) in host mode and 5gb/s (USB 3.2 Gen 1)in device mode. Since the SOM is the device i issume the jetson is able to consume all incoming datas. The cable is also USB 3.2 Gen 2 compliant.
As you can see in the code , the bandwidth was set to SUPER_PLUS.

I get the following results from the script :

Downlink 2414.5 mbps
Uplink 2229.0 mbps

So the bandwidth is clearly stuck at 5gb/s.

Can anyone help ?

jakaskerl

BearrGod
That is a Jetson issue. The port is not Gen2 is seems, or Jetson has some bandwidth negotiations. Try updating jetpack/checking the system settings to possibly toggle performance modes (or the likes).

Thanks,
Jaka

BearrGod

jakaskerl I contacted the Jetson forums and got no answer but on the jetson , the device is clearly marked as USB3.2 , because after running dmesg --follow , here is what i found.

[  749.253884] usb 2-2: new SuperSpeedPlus Gen 2 USB device number 4 using tegra-xusb
[  749.284330] usb 2-2: New USB device found, idVendor=03e7, idProduct=f63b, bcdDevice= 1.00
[  749.284340] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  749.284346] usb 2-2: Product: Luxonis Device
[  749.284350] usb 2-2: Manufacturer: Intel Corporation
[  749.284354] usb 2-2: SerialNumber: 14442C109142AFCF00

Is there a possibility that the SOM it not delivering the bandwidth as it should be ? Would you propose a setup to test that ?

jakaskerl

BearrGod
I'll check at the office tomorrow, but afaik all devices should support Gen2 usb.

Thanks,
Jaka

jakaskerl

BearrGod
Works fine on my side with R5 Oak-FFC 4P. Recheck cable and jetson USB mode.

Thanks,
Jaka

BearrGod

jakaskerl Thank you for helping me check. Just to be sure you used the oak_bandwidth_test.py script right ?