This article had different contributions, and the authors worked in several stages. We state in this section their individual contributions. Ana Cristina Oliveira structured the paper, contributing in the implementation of the concept, formal analysis, methodology, software, validation, data visualization, and writing. Marco Spohn contributed to the methodolgy, supervision and writing review and editing. Christof Fetzer worked on the conceptualization of the query VM pricing model and scheduling, funding acquistion, project administration, resources and supervision. Le Quoc Do contributed to data curation, experiments and validation of the model. André Martin added to the investigation and writing.