ExDe: Design space exploration of scheduler architectures and mechanisms for serverless data-processing

Article Computer Science, Software Engineering

iFogSim2: An extended iFogSim simulator for mobility, clustering, and microservice management in edge and fog computing environments

Redowan Mahmud et al.

Summary: Internet of Things (IoT) is the foundation for next-generation Cyber-Physical Systems (CPSs), and the large amount of data generated by IoT devices requires low-latency processing. Edge/Fog computing, as an extension of cloud computing in the IoT network, can meet these requirements. However, the structural and operational differences of Edge/Fog infrastructure make it challenging to directly apply cloud-based service regulations. To address this issue, we have developed modular simulation models for Edge/Fog computing based on real datasets and extended existing simulators.

JOURNAL OF SYSTEMS AND SOFTWARE (2022)

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Article Computer Science, Hardware & Architecture

Noise in the Clouds: Influence of Network Performance Variability on Application Scalability

Daniele De Sensi et al.

Summary: This paper analyzes the network performance, scalability, and cost of running HPC workloads on cloud systems. It examines latency, bandwidth, and collective communication patterns at different scales and validates the impact of network and OS noise on performance and cost.

PROCEEDINGS OF THE ACM ON MEASUREMENT AND ANALYSIS OF COMPUTING SYSTEMS (2022)

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Article Computer Science, Hardware & Architecture

WiseFuse: Workload Characterization and DAG Transformation for ServerlessWorkflows

Ashraf Mahgoub et al.

Summary: This paper characterizes the production workloads of serverless directed acyclic graphs (DAGs) at a major cloud provider. It identifies two major factors that limit performance and proposes WiseFuse, an automated approach to optimize the execution plan for serverless DAGs. WiseFuse introduces three optimizations: Fusion, Bundling, and Resource Allocation. Experimental evaluation using three serverless applications demonstrates that WiseFuse outperforms competing approaches in terms of latency and cost.

PROCEEDINGS OF THE ACM ON MEASUREMENT AND ANALYSIS OF COMPUTING SYSTEMS (2022)

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Article Computer Science, Information Systems

Netherite: Efficient Execution of Serverless Workflows

Sebastian Burckhardt et al.

Summary: Serverless computing is a popular choice for cloud service architects because it offers scalability and load-based billing with minimal developer effort. New frameworks like Durable Functions allow for the addition of stateful abstractions in serverless applications. Netherite is a novel architecture that improves latency and throughput of serverless workflows by optimizing partitioning and state persistence.

PROCEEDINGS OF THE VLDB ENDOWMENT (2022)

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Article Computer Science, Information Systems