The Performance Evaluation of a Local Transaction Service in support of Juxtaposed CORBA Components

The communication between CORBA juxtaposed components suffer from unnecessary object request broker participation overhead in available implementations of CORBA component model. Some efforts have been made to optimize CORBA Component Model structure by differentiating remote requests from local requests to efface Object Request Broker interventions to realize components communications and make it possible to use Object Request Broker services such as Naming, Event and Transaction services. One such solution presented by ourselves has merely proposed a local transaction service model to minimize the response time of communication by managing four types of events occurring during execution of a transaction over distributed components using CORBA Component Model. This paper attempts to show the attained optimization of the proposed local transaction service model by implementing the model and providing a real local transaction service support for juxtaposed components. In the best-case we got a 25% optimization rate when all of the components involved in a transaction were juxtaposed.