[ofa-general] Re: [PATCH] libmlx4: make BF available for RDMA_READ work requests

[Tziporet Koren]

Roland Dreier wrote:
> I trust you guys on this, but have you thought about whether blueflame
> makes sense for RDMA read requests?  After all, an RDMA read requires
> the responder to send potentially a large amount of data to complete,
> and even for small requests I would think that latency-sensitive apps
> would avoid it.  Is there an MPI implementation or other app that you
> know of where this really helps?
>
>  
You can run the ib_read_lat test and see the latency improvement for 
each message size.
And we have customers that this improvement is important for them.

Tziporet