TY  - CONF
A1  - Incerto, Emilio
A1  - Tribastone, Mirco
A1  - Trubiani, Catia
N2  - 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.
M2  - Bergamo, Italy
Y1  - 2015///
PB  - ACM
SN  - 978-1-4503-3817-2
T2  - Proceedings of the 1st International Workshop on Quality-Aware DevOps
T3  - QUDOS 2015
UR  - http://doi.acm.org/10.1145/2804371.2804375
SP  - 19
ID  - eprints3578
EP  - 24
AV  - none
N1  - SCOPUS ID: 2-s2.0-84960413541
KW  - Fluid Approximation Analysis
KW  -  Queueing Networks
KW  -  Runtime Self-Adaptation
TI  - A Proactive Approach for Runtime Self-adaptation Based on Queueing Network Fluid Analysis
CY  - New York, NY, USA
ER  -