Malone, David and Purcell, Mark and Creedon, Eoin and O’Dwyer, Karl J (2019) Power Saving Proxies for Web Servers. The Computer Journal, 63 (2). pp. 179-192. ISSN 0010-4620

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Abstract

Electricity is a major cost in running a data centre, and servers are responsible for a significant percentage of the power consumption. Given the widespread use of HTTP, both as a service and a component of other services, it is worthwhile reducing the power consumption of web servers. In this paper we consider how reverse proxies, commonly used to improve the performance of web servers, might be used to improve energy efficiency. We suggest that when demand on a server is low, it may be possible to switch off servers. In their absence, an embedded system with a small energy footprint could act as a reverse proxy serving commonly-requested content. When new content is required, the reverse proxy can power on the servers to meet this new load. Our results indicate that even with a modest server, we can get a 25% power saving while maintaining acceptable performance.

Item Type:	Article
Keywords:	power aware computing; power saving; HTTP; Web server; reverse proxies;
Academic Unit:	Faculty of Science and Engineering > Mathematics and Statistics Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID:	15294
Identification Number:	https://doi.org/10.1093/comjnl/bxz081
Depositing User:	Dr. David Malone
Date Deposited:	20 Jan 2022 10:34
Journal or Publication Title:	The Computer Journal
Publisher:	Oxford University Press
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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