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List:       linux-kernel
Subject:    Re: What happened to CONFIG_TCP_NAGLE_OFF?
From:       Alan <alan () lxorguk ! ukuu ! org ! uk>
Date:       2006-11-30 23:56:27
Message-ID: 20061201000030.1d8ba600 () localhost ! localdomain
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> No, nagle was invented specifically for telnet.  Without nagle, every 

No it was general purpose. It fixes some extremely bad behaviour in TCP
with congestion well beyond the "telnet" behaviour.

> Things like mouse movements should not be sent over TCP at all.  UDP 
> makes a much better protocol for that kind of data since if a packet is 

UDP is rarely appropriate because it has no congestion control. There are
more appropriate protocols but they are rarely implemented so TCP
generally gets used.

> lost, there is no need to retransmit the same data; instead you just get 
> the next position update and don't care about where the mouse was during 
> the dropped packet.

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