Re: 16-bit CmdRN too small?

[Michael Krause <krause@cup.hp.com>]

At 04:23 PM 6/28/00 -0700, Costa Sapuntzakis wrote:

>Is 16-bit CmdRN too small?
>
>A 16-bit CmdRN with a sliding window gives you the ability to issue
>max 32768 commands simulatenously.
>
>If each of these is an 8K write:
>
>32768 * 8K = 256MB
>
>Which, on a 10GE connection, is about 200ms. If the round-trip time
>is greater than 200ms, then the initiator can't fill the pipe.

Definitely too small.  32-bit or even 48-bit with epochs to deal with some 
types of ghost I/O would be prefered.

Mike