[ofa-general] Do RDMA write can use async event in userspace?

[Dotan Barak]

zhang Jackie wrote:
> I found that in the perftest library, ib_write_lat and ib_write_bw 
> dont have a option "-e" to let the program use async event. Do it mean 
> RDMA write cant use together with async event? why?
>
> Thanks, Best Regards & Happy New Year!
Here is the description of the "-e" parameter from ib_send_lat:

 -e, --events                 sleep on CQ events (default poll)


Which means that completion events are being used (and not async events).

There isn't any limitation and completion events can be used with RDMA 
Read/Write (for the side that get the completions, which is the requestor).


Dotan