New methods for more energy-efficient internet services

The billions of people using internet services worldwide require huge data centres resulting in an enormous energy consumption. In her doctoral dissertation at Umeå University, Mina Sedaghat has developed techniques and algorithms to manage and schedule the resources in these large data centres at a lesser cost, more efficiently, more reliably and with a lower environmental impact.

Korean pop-video, Gangnam Style, available on YouTube has had 2.5 billion viewers, which results in a of more than 400 GWh. If, in worst case, the electricity to serve such a demand is generated by diesel, it would mean that more than 250,000 tons of CO2 would be produced, which is equivalent to over 100,000 cars per year.

These examples are not uncommon. Millions of people are using different services such as Google, Facebook, Twitter, and Instagram, every day. This increase in internet usage and the information generated by nearly one billion people entails large data centres with row after row of , requiring huge amount of space, electricity and cooling.

The dissertation introduces methods and techniques to efficiently use the servers in the data centres, so that load can be served with fewer resources.

What technology can be used?

"It could be optimised scheduling systems packing several software components into a few servers in a way that makes full use of processors, memory, bandwidth, network capacity and other resources. In this way, energy efficiency can be improved reducing the negative , and at the same time reducing operational costs," says Mina Sedaghat.

Explore further

New method to predict the workload for online services

More information: The dissertation is available online:
Provided by Umea University
Citation: New methods for more energy-efficient internet services (2016, January 19) retrieved 9 December 2021 from
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

Feedback to editors