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Application Server Performance Persistent Connections Persistent connections allow multiple requests and responses to be sent on the same TCP connection - the underlying transport used by servers and clients. Reusing the established connection is much more efficient than creating a new connection for each request, much the same way people would ask and answer multiple questions during a single conversation instead of starting a whole new conversation for each question.
In the case of SSL, the overhead to set up the TCP connection and negotiate the encryption is more significant than creating a standard TCP connection, so the benefit of persistent connections is even greater.
Persistent connections are well supported by common web browsers, making this a widely useful improvement. |



