USB3 JetNano

[nielbuss]

hi,
I tried usb3 loopback on jetson nano dev kit. the usb3 port only show 1.5gbps. I also tried it through a 720202 pcie-usb3.0 bridge module. it seems that it recognize the passmark device but failed to recognize device when starting the test, see below. questions:
1) why on direct usb3.0 port speed only show 1.5gbps?
2) can the loopback be use through a bridge module?

alex@JetNano:~$ cd \Documents/programs
alex@JetNano:~/Documents/programs$ sudo ./usb3test
[sudo] password for alex:
/proc/bus/usb/devices not found - trying /sys
Found USB3 plug : firmware: 2.5 PMU35QKWHN speed: 5000 at 2:2
Connecting [Serial: PMU35QKWHN]
Did not find Passmark USB plug PMU35QKWHN
Couldn't re-open USB3 plug 0 - PMU35QKWHN
alex@JetNano:~/Documents/programs$


Thank you,
Alex

[David (PassMark)]

1) Maybe this speed is all the Jetson nano dev kit is capable of? What was the single threaded CPU load?

2) We haven't dine any testing with a jetson nano dev kit with a 720202 pcie-usb3.0 bridge module attached to a loopback plug. But the plug certainly works on USB ports on PCIe cards (on Windows based x86 machines).