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Investigating the Impacts of Web Servers on Web Application Energy Usage. James Clause Lori Pollock Kristina Winbladh. Computer and Information Sciences University of Delaware. Irene L. Manotas G. Cagri Sahin. Which Web S erver S hould I Use?.
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Investigating the Impacts of Web Servers on Web Application Energy Usage James Clause Lori Pollock Kristina Winbladh Computer and Information Sciences University of Delaware Irene L. Manotas G. Cagri Sahin
Which Web Server Should I Use? • RQ1—Feasibility:Does the choice of web server impact the energy consumption of a web application? • RQ2—Consistency: Are the web servers consistent in their impact? Empirically Investigate
Experimental Setup web server web browser web application WEBRick user inputs Integration Tests Automatic Testing LEAP energy monitor workloads 3
Results: Feasibility and Consistency • The web server does make a difference • Energy consumption variability differs across features. • A given web server is not always the best under all features. This work is supported in part by National Science FoundationGrant No. 1216488 and an award from the University of Delaware Research Foundation 4 4
Issues We Face Questions for Discussion • How are others monitoring and mapping energy usage to program units? • How many repeated runs do others perform to take measurements to account for variations? Correlating energy measurements with design decisions/implementations in a non-tedious manner