Performance of selective receive

[todd]

Pascal Brisset wrote:

>todd writes:
> > Having unconstrained senders turns out to be a gun that can fire at anytime.
>
>Note that in my example, the sender *is* constrained: it has
>bounded request rate and jitter.  It's just not flow-controlled.
>  
>
Imho if there is no feedback of consumers back to the producers then 
there is only notional contstraint as it assumes ideal everything. As 
nothing is ideal we need feedback to adapt to reality.