[e2e] Why do we need TCP flow control (rwnd)?

[John Day]

>
>Also, as Michael pointed out, OSes (at least Linux) currently allocate
>individual buffers per flow, wasting a lot of memory.  (Perhaps the
>small-buffer problem would go away if a large common buffer was
>allocated, in which case it is an implementation rather than protocol
>problem...)

Good grief.  Did anyone ever read, Denning, Peter. "A Statistical 
Model for Console Behavior in Multiuser Computers" CACM, Vol.11, No.9 
p.605, Sept 1968.

The closest thing to a no-brainer in CS we will probably ever find.

(Sorry to be so late catching up)