Fair Resource Allocation in Consolidated Flash Systems

Authors: 

Wonil Choi, Bhuvan Urgaonkar, and Mahmut Kandemir, Pennsylvania State University; Myoungsoo Jung, KAIST

Abstract: 

We argue that, along with bandwidth and capacity, lifetime of flash devices is also a critical resource that needs to be explicitly and carefully managed, especially in emerging consolidated environments. We study the resulting multi-resource allocation problem in a setting where "fairness" across consolidated workloads is desired. Towards this, we propose to adapt the well-known notion of dominant resource fairness (DRF). We empirically show that using DRF with only bandwidth and capacity (and ignoring lifetime) may result in poor device lifetime. Incorporating lifetime, however, turns out to be non-trivial. We identify key challenges in this adaptation and present simple heuristics. We also discuss possible design choices which will be fully explored in future work.

Open Access Media

USENIX is committed to Open Access to the research presented at our events. Papers and proceedings are freely available to everyone once the event begins. Any video, audio, and/or slides that are posted after the event are also free and open to everyone. Support USENIX and our commitment to Open Access.

BibTeX
@inproceedings {234737,
author = {Wonil Choi and Bhuvan Urgaonkar and Mahmut Kandemir and Myoungsoo Jung},
title = {Fair Resource Allocation in Consolidated Flash 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/choi},
publisher = {{USENIX} Association},
month = jul,
}