I'd suggest to increase the default receive buffer limit to about
128K (admins who bother about it could tune it) and keep the send buffer
limit as it is.
I suppose that per user resource accounting can help admins to fight
against overcommits more efficiently.
I'm working under per user resource accounting in the background :-)
The accounting of page directory space is close to be finished.
Socket buffer space is the next in the todo list.
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