From: Clifford Heath <cjh_nospam@...>
Date: 2003-04-04T10:57:06+09:00
Subject: Re: Clarification: read/write slow, and TCPSocket and sys{read,write}

I suspect you're being killed by the latency in the TCP
protocol layer. If you write to a socket, most implementations
won't send your packet immediately, because they guess you
will write more instead of reading next. After say 10ms, they
give up waiting for more and send what you wrote. This is
known as the Nagle algorithm, you should be disable it using
setsockopt TCP_NODELAY (I haven't done this in Ruby).

Clifford.