[openib-general] RDMA Read performance

[Sean Hefty]

Galen Shipman wrote:
> Grant,
> 
>> Could you run the ibv_pingpong test and report what that gets?
> 
> 
> Using: ibv_rc_pingpong --size=1048576 I am seeing 942 Mbytes per sec.
> 
> As I said previously, we have an internal application that sees ~950 
> MBytes per sec using RDMA Write. It looks like ibv_rc_pingpong is using 
> send receive  and not RDMA. Perhaps someone (Roland) has an RDMA Read 
> test they can point me to?

I'm not aware of an RDMA read test.  Try increasing max_rd_atomic and 
max_dest_rd_atomic to the maximum values supported by the HCA.

- Sean