Fair-EDF: A Latency Fairness Framework for Shared Storage Systems


Yuhan Peng and Peter Varman, Rice University


We present Fair-EDF, a framework for latency guarantees in shared storage servers. It provides fairness control while supporting latency guarantees. Fair-EDF extends the pure earliest deadline first (EDF) scheduler by adding a controller to shape the workloads. Under overload it selects a minimal number of requests to drop and to choose the dropped requests in a fair manner. The evaluation results show Fair-EDF provides steady fairness control among a set of clients with different runtime behaviors.

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@inproceedings {234759,
author = {Yuhan Peng and Peter Varman},
title = {Fair-EDF: A Latency Fairness Framework for Shared Storage Systems},
booktitle = {11th {USENIX} Workshop on Hot Topics in Storage and File Systems (HotStorage 19)},
year = {2019},
address = {Renton, WA},
url = {https://www.usenix.org/conference/hotstorage19/presentation/peng},
publisher = {{USENIX} Association},
month = jul,