The PCIe communication between the dual Xaviers is realized through the virtual network port eth1. The current measured maximum speed is 4Gb/s, which is too far from the theoretical value. (Theoretical value: PCIe4.0 x8 15.754 GB/s). How to improve communication bandwidth?
I won’t be able to answer, but before someone answers you will need to post the verbose “lspci” on each device. Verbose requires using sudo. This displays the verbose lspci information:
sudo lspci -vvv
(you could also limit this to an individual slot with the “-s <slotID>”.
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