How do I send when the payload is 4 kB?

[13362130124]

Hello, I want to test the latency when the payload is 4 KB. I modify max_inline_data to increase the value of message. When max_inline_data is 828, create_qp fails.
Maybe it's not the right way to modify it. How do I send when the payload is 4 kB?

[NEWPLAN]

You may split the message into multiple smaller pieces and send them one by one.

[13362130124]

You may split the message into multiple smaller pieces and send them one by one.

You mean split my message? However, I want to test the latency in the scenario with a large payload.

[NEWPLAN]

You may split the message into multiple smaller pieces and send them one by one.

You mean split my message? However, I want to test the latency in the scenario with a large payload.

Is it possible to pack the message (addr and lkey) in a sge and then insert it in a wqe?

[NEWPLAN]

You may ref to perftest@https://github.com/linux-rdma/perftest for testing the latency and throughput, which is the most popular tool for RDMA performance benchmark.