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A Proactive Approach for Runtime Self-adaptation Based on Queueing Network Fluid Analysis

Incerto, Emilio and Tribastone, Mirco and Trubiani, Catia A Proactive Approach for Runtime Self-adaptation Based on Queueing Network Fluid Analysis. In: Proceedings of the 1st International Workshop on Quality-Aware DevOps, August 30 - September 4, 2015, Bergamo, Italy pp. 19-24. ISBN 978-1-4503-3817-2. (2015)

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Complex software systems are required to adapt dynamically to changing workloads and scenarios, while guaranteeing a set of performance objectives. This is not a trivial task, since run-time variability makes the process of devising the needed resources challenging for software designers. In this context, self-adaptation is a promising technique that work towards the specification of the most suitable system configuration, such that the system behavior is preserved while meeting performance requirements. In this paper we propose a proactive approach based on queuing networks that allows self-adaptation by predicting performance flaws and devising the most suitable system resources allocation. The queueing network model represents the system behavior and embeds the input parameters (e.g., workload) observed at run-time. We rely on fluid approximation to speed up the analysis of transient dynamics for performance indices. To support our approach we developed a tool that automatically generates simulation and fluid analysis code from an high-level description of the queueing network. An illustrative example is provided to demonstrate the effectiveness of our approach.

Item Type: Conference or Workshop Item (Paper)
Identification Number: 10.1145/2804371.2804375
Additional Information: SCOPUS ID: 2-s2.0-84960413541
Uncontrolled Keywords: Fluid Approximation Analysis, Queueing Networks, Runtime Self-Adaptation
Subjects: Q Science > QA Mathematics > QA76 Computer software
Research Area: Computer Science and Applications
Depositing User: Caterina Tangheroni
Date Deposited: 06 Oct 2016 15:36
Last Modified: 06 Oct 2016 15:36
URI: http://eprints.imtlucca.it/id/eprint/3578

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