Energy-efficiency of server hardware, web server software and databases has been widely studied. However, studies that combine these aspects are rare. In this paper the authors present an energy-efficiency evaluation of a web and database application. They concentrate on the following aspects: server BIOS and operating system energy optimization and "bursting" i.e. queuing requests and then executing them in bursts. The authors have used the bursting method with both a database application and a web plus database application. Their results indicate about 10% energy savings using this method. They analyse the model by statistical tools and present an equation to express the quality of service versus burst wait time relationship.
['Jukka Kommeri', 'Felipe Abaunza', 'Marko Niinimäki', 'Peter Thanisch', 'Tapio Niemi']
Energy Efficiency of a Web and Database Server System: Configuration and Bursting