[Openib-windows] File transfer performance options

[Paul Baxter]

> Does your Linux app create several small files, or a few large files?
> For several small files, SRP will probably be as good as
> application-managed file transfers.  For large files you may be able
> to get better bandwidth (close to wire speed) by managing the file
> transfers in the application.  I would expect that with SRP you will
> be able to reach close to 400MB/s.  Hopefully that will be acceptable.

We're configurable, but likely range is 10-100MB per file.

I am looking for 200 MB/s for 'ideal' archiving so as you note later in the 
email, I probably don't need to use the RDMA model and can keep with SRP.

>> I'm hoping someone can now tell me that yes, SRP can do this today (or at 
>> a
>> pinch tomorrow).
>
> Yes, SRP can do what you want it to.  You will need an SRP target
> driver for the Linux side, however.  Note that it doesn't matter what
> IB drivers you use on the target as long as they behave properly on
> the wire, so you if the stack that the SRP target reference code is
> available and works, you could use that.

Just need an openib Linux SRP target now :)

Thanks again to all who have helped me.

Paul Baxter