Execution Cost Prediction of FaaS in a Public Cloud Provider through the Orama Framework

• Edson de Souza Sales UnB
• Leonardo Rebouças de Carvalho UnB
• Aleteia Araujo UnB

DOI: https://doi.org/10.5753/sscad_estendido.2025.15893

Abstract

Function-as-a-Service (FaaS) is a cloud computing paradigm that has gained notoriety for offering automatic scalability and simplicity in application execution. However, FaaS brings unpredictable execution costs, making financial planning difficult for applications with variable loads. This paper presents a tool, integrated with the Orama framework, that estimates FaaS execution costs across AWS provider. The results demonstrate that the proposed approach is capable of predicting costs with an average accuracy of 99.23%.

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