PCIE DMA rate is slow

hi nv
Two orin modules connected using PCIE, we tested EP DMA performance
RC->EP The maximum DMA read speed is only 15Gbps
How to improve DMA read rate?

The throughput looks fine. What is the target in the use-cases? Do you connect in x4 or x8

And please upgrade to latest Jetpack 5.1.1 if you are using previous version.

hi nv
It tested on jetpack5.1
We want the speed is above 30Gbps

Hi youganghu,
you need optimize your DMA driver to improve DMA speed.

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