[erlang-questions] Message multiplexing

Ryan Rawson <>
Sat Jul 28 02:35:24 CEST 2007

Sounds like the real question is, does the distribution protocol use 1  
or more tcp sockets?  Perhaps netstat and an experiment can answer  
this question? I'm also curious.


Sent from my iPhone

On Jul 27, 2007, at 3:59 PM, "Jim McCoy" <> wrote:

> Can anyone out there save me from diving into the Erlang source to
> determine whether or not Erlang does any multiplexing of messages
> being sent between processes (esp. processes on different nodes)?  The
> fact that there are no ordering assurances for message sending gives
> me a bit of hope, but I would love to know any low-level details that
> would answer this question.
> The basic case I am thinking of is sending messages A, B, and C from
> node 1 to node 2.  Message A is 10M and messages B and C are 10 bytes.
> Assuming the messages are all sent from the same process in the order
> node2 ! A, node2 ! B, node2 ! C, is there any hope that messages B and
> C might not have to wait around for all 10M of message A to get
> delivered to node 2 before they hop on to the wire?
> Regards,
> Jim
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