Software Congestion, Mobile Servers, and the Hyperbolic Model
IEEE Transactions on Software Engineering
Understanding CORBA (Common Object Request Broker Architecture)
Understanding CORBA (Common Object Request Broker Architecture)
Communications of the ACM
OMG overview: CORBA and the OMA in enterprise computing
Communications of the ACM
Evaluating architectures for multithreaded object request brokers
Communications of the ACM
The benefits of CORBA-based network management
Communications of the ACM
Software Bottlenecking in Client-Server Systems and Rendezvous Networks
IEEE Transactions on Software Engineering
Performance Comparison of Architectures for Client-Server Interactions in CORBA
ICDCS '98 Proceedings of the The 18th International Conference on Distributed Computing Systems
Object-oriented components for high-speed network programming
COOTS'95 Proceedings of the USENIX Conference on Object-Oriented Technologies on USENIX Conference on Object-Oriented Technologies (COOTS)
A high-performance end system architecture for real-time CORBA
IEEE Communications Magazine
Performance of CORBA-Based Client-Server Architectures
IEEE Transactions on Parallel and Distributed Systems
Application level performance optimizations for CORBA-based systems
WOSP '02 Proceedings of the 3rd international workshop on Software and performance
Performance of adaptive CORBA middleware
Journal of Parallel and Distributed Computing
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Middleware provides inter-operability and transparent location of servers in a heterogeneous distributed environment. A careful design of the middleware software is required however for achieving high performance. This research proposes an adaptive middleware architecture for CORBA-based systems. The adaptive middleware agent that maps an object name to the object reference has two modes of operations. In the handle-driven mode it returns a reference for the requested object to the client that uses this reference to re-send the request for the desired operation to the server whereas in the forwarding mode it forwards the entire client request to the server. The server upon invocation performs the desired operation and returns the results to the client. An adaptive ORB dynamically switches between these two modes depending on the current system load. Using a commercial middleware product called Orbix-MT we have implemented a skeletal performance prototype for the adaptive ORB. Based on measurements made on a network of workstations and a synthetic workload we observe that the adaptive ORB can produce a substantial benefit in performance in comparison to a pure handle-driven or a pure forwarding ORB. Our measurements provide valuable insights into system behavior and performance.