NFS - RDMA over Infiniband - performance issue

Hi,

I am getting an average speed of ~100 MiB/s using NFS-RDMA over
Infiniband, writing to an md device. The local write speed was ~800 MiB/s. The kernel being used is 2.6.18.3. The tests were performed using dd (various block sizes have been tried). I have fiddled with the rsize and wsize as well, but that didn't make any difference. Can anyone please help me out!

Thanks!

Vishal

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