Sun Java System Application Server Enterprise Edition 8.1 2005Q2 Performance Tuning Guide

Acceptor Threads

The Acceptor Threads setting specifies how many threads you want in accept mode on a listen socket at any time. It is a good practice to set this to less than or equal to the number of CPUs in your system.

In the Application Server, acceptor threads on an HTTP Listener accept connections and put them onto a connection queue. Session threads then pick up connections from the queue and service the requests. The server posts more session threads if required at the end of the request.

The policy for adding new threads is based on the connection queue state: