[openib-general] Mellanox HCAs: outstanding RDMAs
rdreier at cisco.com
Fri Jun 2 13:12:30 PDT 2006
Manpreet> Mellanox HCA can handle has been configured at 4
Manpreet> (mthca_main.c: default_profile: rdb_per_qp). And the
Manpreet> HCAs can support a much higher value (128 I think).
Manpreet> Could we move this value higher or atleast make it
Leonid Arsh has a patch that I will integrate soon that makes this
However, I'm curious. Do you have a workload where this actually
makes a measurable difference? It seems that having 4 RDMA requests
outstanding on the wire should be enough to get things to pipeline
If you haven't tested this, right now you can of course edit
mthca_main.c to change the default value and recompile.
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