How to test pcie performance

hi i’m working on transfer massive data from orin to PC by PCIE

i finished PCIe Endpoint Mode setting in this page
https://docs.nvidia.com/jetson/archives/r35.4.1/DeveloperGuide/text/SD/Communications/PcieEndpointMode.html?highlight=pcie

Shared RAM between endpoint and RC works fine

but in last part Custom Endpoint Function Driver

i’m build pci-epf-test file in kernel source file on orin board but when i try to run pcitest its always show can’t open PCI Endpoint test device: No such file or directory

what i missed?