ETD

Archivio digitale delle tesi discusse presso l'Università di Pisa

Tesi etd-01292012-205525


Tipo di tesi
Tesi di dottorato di ricerca
Autore
NICCOLINI, LUCA
URN
etd-01292012-205525
Titolo
On the Energy Efficiency of Networked Systems
Settore scientifico disciplinare
ING-INF/05
Corso di studi
APPLIED ELECTROMAGNETISM IN ELECTRICAL AND BIOMEDICAL ENGINEERING, ELECTRONICS, SMART SENSORS, NANO-TECHNOLOGIES
Relatori
tutor Prof. Iannaccone, Giuseppe
tutor Dott. Iannaccone, Gianluca
Parole chiave
  • Software Routers
  • Hybrid Architectures
  • Energy Efficiency
  • Datacenters
Data inizio appello
23/03/2012
Consultabilità
Completa
Riassunto
Energy is a first-class resource for datacenter operators since its cost is the biggest limiting factor in scaling a large computing facility. The solution embraced by major operators is to build their facilities in strategic geographical locations and to abandon expensive specialized hardware for cheap commodity systems. However, such systems are not efficient when it comes to energy and a considerable amount of research effort has been put in finding a solution to this problem. Furthermore, the need for more programmable and flexible networking devices is pushing the need for hardware commoditization also within the datacenter network.
In this thesis we propose two solutions aimed at improving the overall energy efficiency of a datacenter facility. The first address efficiency in computing, by proposing a different hardware architecture for server systems. We propose a hybrid architecture that blends traditional server processors with very-low-power processors from the mobile devices world. The second solution envisions the usage of current server platforms as network switches or routers and provides guidelines for the implementation of power saving algorithms that do not affect peak performance while saving up to 50% power.
This work is based on both theoretical modeling and simulation and experimentation with real-world prototypes.
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