Paper Info
Title
Modelling performance and power consumption of utilisation-based DVFS using M/M/1 queues.
Abstract
Dynamic Voltage and Frequency Scaling (DVFS) has become a key technique to reduce power consumption at times of low processor (CPU) utilisation. Reducing CPU frequency usually results in degraded services' performance leading to Service Level Agreement (SLA) violations. Usually, CPU governors change frequency and voltage at discrete time instances based on utilisation without taking into account performance constraints of services. In this paper, a model for the widely used utilisation-based ondemand governor is presented. In contrast to state-of-the-art DVFS approaches, our model explicitly considers the change of frequency and voltage at discrete time instances based on utilisation. The model allows us to estimate both service performance and processor's power demand. Furthermore, the model can be used to determine an optimal voltage and frequency switching strategy in order to achieve a further reduction of energy consumption while ensuring compliance with SLAs. The results obtained from experimental analysis confirm our proposed model.
Year
DOI
Venue
2016
10.1145/2934328.2934342
e-Energy
Field
DocType
Citations 
Voltage,Service-level agreement,Queue,Real-time computing,Frequency scaling,Discrete time and continuous time,Engineering,Energy consumption,Governor,Reliability engineering,Power consumption
Conference
2
PageRank 
References 
Authors
0.48
9
3
Name
Order
Citations
PageRank
Robert Basmadjian114913.03
Florian Niedermeier2796.25
Hermann de Meer31575143.10