Using Discrete Event Simulation To Address The Probe Effect In Software Testing Of Real Time Distributed Systems
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Using Discrete-Event Simulation to Address the Probe Effect in Software Testing of Real-Time Distributed Systems
The term probe effect denotes behavioral changes caused by introducing delays into a concurrent program with synchronization errors. This thesis investigates the feasibility of developing discrete-event simula- tion (DES) models of software architectures to perform software testing free of the probe effect. A message-passing subsystem (MPS) and simulated MPS (SMPS) were developed in Java that runs with the same application code. An MPS platform- performance model (MPPM) was developed using dual-loop benchmarking and was integrated into the SMPS. Two demonstration programs were developed to study SMPS timing and its model of a preemptive multi-threaded run-time system. The SMPS-based program behavior was compared to hypothetical execution on a platform with a perfect system clock and no execution overhead. The differences between hypothetical and observed SMPS-based execution were found to correctly reflect the MPPM. The results indicated that it is feasible to develop DES implementations of some software architectures to perform software testing.
Testing of Communicating Systems
Testing of Communicating Systems presents the latest worldwide results in both the theory and practice of the testing of communicating systems. This volume provides a forum that brings together the substantial volume of research on the testing of communicating systems, ranging from conference testing through interoperability testing to performance and QoS testing. The following topics are discussed in detail: Types of testing; Phases of the testing process; Classes of systems to be tested; and Theory and practice of testing.£/LIST£ This book contains the selected proceedings of the 12th International Workshop on the Testing of Communicating Systems (formerly the International Workshop on Protocol Test Systems), sponsored by the International Federation for Information Processing (IFIP), and held in Budapest, Hungary, in September 1999. The book contains not only interesting research on testing different communication technologies from telecom and datacom systems to distributed systems, but also presents reports on the application of these results in industry. Testing of Communicating Systems will be essential reading for engineers, IT managers and research personnel working in computer science and telecommunications.