Kieker4DQL: Declarative Performance Measurement
The Descartes Query Language (DQL) enables to query the performance of a system using adapters to various solution approaches. Thereby, DQL is a realization of the vision of Declarative Performance Engineering (DPE) which decouples the description of user concerns (performance questions and goals) from the task of selecting and applying a speciffic solution approach. While model-based approaches are already supported by DQL, measurement based approaches are not. In this paper we present the Kieker4DQL, an adapter for DQL that performs query processing for Application Monitoring Tools, the Kieker in particular. It creates a tailored monitoring configuration to start measurements. The resulting monitoring data is filtered and interpreted according to the query.
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