HeROsim: An Allocation and Scheduling Simulator for Evaluating Serverless Orchestration Policies

Optimizing a serverless platform for Quality of Service is known to be a hard problem that requires experimenting with production data. For this sake, we propose HeROsim, a Heterogeneous Resources Orchestration simulator for the serverless service model. HeROsim allows evaluating resource allocation and task placement policies. HeROsim is an open source, fine-grained discrete-event simulator that considers data and temporal dependencies between functions deployed on heterogeneous resources. It replays execution traces from previously characterized workloads, extracts Quality of Service metrics from the scenarios and presents them to the user by generating summary charts.