AM6442: Zero copy mechanism, performance improvement

Part Number: AM6442

Hi TI Team, 

Requirement: A53 Linux R5F IPC must achieve a round-trip latency of ≤50 µs for the shared-memory data exchange of 1KB between a53 to r5f0_0.

We are working on the AM6442 IPC and communicating between the A53 and R5F0_0 cores using a zero-copy/shared-memory mechanism.

We would like to understand the latency that can realistically be achieved using the zero-copy mechanism for an A53 → R5F0_0 → A53 round trip.

Please answer this priority Question,

What is the maximum round-trip performance tested by TI for a 1 KB payload using the RPMsg zero-copy mechanism?

Could you please share the corresponding TI test results/report for the zero-copy mechanism?


Thanks,
Ganesh D