Adapting System Execution Traces for Validation of Distributed System QoS Properties

System execution traces are useful artifacts for validating distributed system quality-of-service (QoS) properties, such as end-to-end response time, throughput, and service time. With proper planning during development phase of the software lifecycle, it is possible to ensure such traces contain required properties to facilitate analysis for QoS validation. In some case, however, it is not possible to ensure system execution traces contain the necessary properties for QoS analysis. This paper presents the System Execution Trace Adaptation Framework (SETAF) for adapting system execution traces to support analysis of QoS properties. It also presents results from applying SETAF to externally developed applications. The results show that it is possible to validate QoS properties by automatically adapting system execution traces at analysis time instead of modifying the application's existing source code.