Re: TCP RDMA option to accelerate NFS, CIFS, SCSI, etc.

[Costa Sapuntzakis <csapuntz@cisco.com>]

Hi, 

I don't think it's really a matter of SACK vs. RDMA. I think they are both
useful and somewhat orthogonal.

There is a concern that both RDMA and SACK are large options and there
is only 40 bytes of TCP options space.

Perhaps there is a way of expanding the TCP options space (yet another
TCP option!) that will enable both to co-exist peacefully.

-Costa

On Thu, 24 Feb 2000, David S. Miller wrote:

>    Date: Thu, 24 Feb 2000 17:50:52 -0700
>    From: "Justin T. Gibbs" <gibbs@freebsd.org>
> 
>    The performance impact of RDMA is quite a bit larger than SACK,
> 
> It depends who you are.
> 
> For someone over a satellite link, I think SACK benefits them
> much more than RDMA.
> 
> Later,
> David S. Miller
> davem@redhat.com
> 
> 
>