What happens if one tries to do RDMA (say write for example) higher than
4 (or 128 in changed case)? does it just wait till previos operation is
completed?
I don't remember seeing any error ....it was only
limited by the send Q-depth which can go much larger value.
thanks, som.
Roland Dreier wrote:
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
Manpreet> configurable?
Leonid Arsh has a patch that I will integrate soon that makes this
configurable.
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
pretty well.
If you haven't tested this, right now you can of course edit
mthca_main.c to change the default value and recompile.
- R.
_______________________________________________
openib-general mailing list
[email protected]
http://openib.org/mailman/listinfo/openib-general
To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
_______________________________________________
openib-general mailing list
[email protected]
http://openib.org/mailman/listinfo/openib-general
To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
