Performance Evaluation of An Agent Server Capable of Hosting Large Numbers of Agents

Recently Web sites have been providing users with services in accordance with their preference data. In addition to such configuration services, notification services, which process jobs in response to events which occurred at a server in the users' absence, and asynchronous services, which perform jobs after users submit requests, are also available. An agent server architecture which manages users' agents on the server side is proposed for developing systems which provide such services. Such agent servers must be able to sustain high performance. In this paper, we demonstrate that the agent server approach can achieve higher performance than an existing approach which uses DBMS. Also, we describe the performance characteristics of the agent server.