On the Energy Consumption of Different Dataframe Processing Libraries – An Exploratory Study

09/12/2022
by   Shriram Shanbhag, et al.
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Background: The energy consumption of machine learning and its impact on the environment has made energy efficient ML an emerging area of research. However, most of the attention stays focused on the model creation and the training and inferencing phase. Data oriented stages like preprocessing, cleaning and exploratory analysis form a critical part of the machine learning workflow. However, the energy efficiency of these stages have gained little attention from the researchers. Aim: Our study aims to explore the energy consumption of different dataframe processing libraries as a first step towards studying the energy efficiency of the data oriented stages of the machine learning pipeline. Method: We measure the energy consumption of 3 popular libraries used to work with dataframes, namely Pandas, Vaex and Dask for 21 different operations grouped under 4 categories on 2 datasets. Results: The results of our analysis show that for a given dataframe processing operation, the choice of library can indeed influence the energy consumption with some libraries consuming 202 times lesser energy over others. Conclusion: The results of our study indicates that there is a potential for optimizing the energy consumption of the data oriented stages of the machine learning pipeline and further research is needed in the direction.

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