Function-as-a-Service (FaaS) is a growing cloud computing paradigm that is expected to reduce the user cost of service over traditional serverful approaches. However, the environmental impact of FaaS has not received much attention. We investigate FaaS scheduling and scaling from a sustainability perspective in this work. We find that the service-level objectives (SLOs) of FaaS and carbon emissions conflict with each other. We also find that SLO-focused FaaS scheduling can exacerbate water use in a datacenter. We propose a novel sustainability-focused FaaS scheduling and scaling framework to co-optimize SLO performance, carbon emissions, and wastewater generation.

翻译：函数即服务（FaaS）是一种日益增长的云计算范式，相较于传统的服务器模式，其有望降低用户的服务成本。然而，FaaS对环境的影响尚未得到充分关注。本研究从可持续性角度探讨了FaaS的调度与扩缩容问题。我们发现，FaaS的服务等级目标（SLO）与碳排放之间存在冲突。同时，以SLO为中心的FaaS调度可能加剧数据中心的水资源消耗。为此，我们提出了一种新型的、以可持续性为核心的FaaS调度与扩缩容框架，旨在协同优化SLO性能、碳排放与废水产生量。