Those are actually the same tests, from an IB point of view.
the difference between them is that ib_write_bw passes the arguments that need to be known to other side ( LID or GID, Qp num, PSN, RKey and the address of the writing buffer) before post_sending, through TCP connection (using sockets) and the rdma_bw uses the rdma_cm module , which sends those arguments through the IB wire and the SM. rdma_cm is not updated with all the features ib_write_bw have. I will work on this test shortly Ido On 5/17/2011 10:19 PM, [email protected] wrote:
Just downloaded a snapshot of the perftests. In the README under "Test Descriptions" it says: rdma_bw.c streaming BW test with RDMA write transactions and write_bw.c BW test with RDMA write transactions What is the difference between rdma_bw and write_bw? I see that the rdma_bw description contains "streaming" where as write_bw description does not... but I am not sure I understand what that means? E -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
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