[Twisted-Python] pushing out same message on 100k TCPs

Tobias Oberstein tobias.oberstein at tavendo.de
Fri Feb 10 11:56:23 EST 2012

Hi there,

what is the most efficient/performant way of doing the following?

I have a short message prepared .. say a string of 100 octets.
I want to push out that _same_ string on 100k connected TCPs (on a server).


My thinking was: ideally, the 100 bytes would be transferred to kernel/NIC space
just _once_, and then the kernel is only told to resend that buffer on the 100k
connected TCPs.

Does that make sense, is that even possible, with Twisted, or in general?


Currently I do the naive thing: transport.write(msg) x 100k times .. which I guess
involves quite some copying around and user to kernel space transitions ..


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