0MQ: The Intelligent Transport Layer

[Mike Fitzpatrick]

On Tue, Dec 27, 2011 at 12:21 PM, John Swinbank
<swinbank at transientskp.org>wrote:

> Hello,
>
> On 27 Dec 2011, at 18:15, Mike Fitzpatrick wrote:
>
> > Assuming these events are distributed from Chile, the current network
> latency is
> > ~250ms, and the vTCP requires at least one round-trip to message to
> complete
> > delivery.  For 2e6 events sent one at a time the latency alone makes
> this transfer
> > on the scale of 1-2 weeks
>
> Presumably sending in series isn't required…
>

The prospect of many thousands of parallel vTCP connections is very
appealing
either ...

Remember too, for some events to be useful (e.g. GRB followup) they
cannot be delivered 12 hours later, so the problem (at least a major
use-case)
has to also solve the question of how to deliver 10K (or is it 50K, or
100K?) events
in a matter of *minutes*.  I don't think the bar napkin on which vTCP was
designed
was big enough to consider that case thoroughly 8-)

Cheers,
-Mike
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