Details

Autor(en) / Beteiligte

• Pereira, Rui
• Simão, Pedro
• Cunha, Jácome
• Saraiva, João

Titel

jStanley: placing a green thumb on Java collections

Ist Teil von

• 2018 33rd IEEE/ACM International Conference on Automated Software Engineering (ASE), 2018, p.856-859

Ort / Verlag

New York, NY, USA: ACM

Erscheinungsjahr

2018

Link zum Volltext

• IEEE_Xplore

Quelle

IEEE/IET Electronic Library (IEL)

Beschreibungen/Notizen

• Software developers are more and more eager to understand their code’s energy performance. However, even with such knowledge it is di cult to know how to improve the code. Indeed, little tool support exists to understand the energy consumption pro le of a software system and to eventually (automatically) improve its code. In this paper we present a tool termed jStanley which automatically nds collections in Java programs that can be replaced by others with a positive impact on the energy consumption as well as on the execution time. In seconds, developers obtain information about energy-eager collection usage. jStanley will further suggest alternative collections to improve the code, making it use less time, energy, or a combination of both. The preliminary evaluation we ran using jStanley shows energy gains between 2% and 17%, and a reduction in execution time between 2% and 13%. A video can be seen at https://greensoftwarelab.github.io/jStanley.