Fair Resource Allocation in Consolidated Flash Systems
Fair Resource Allocation in Consolidated Flash Systems
复制标题
DOI：
--
复制
发表时间：
2019-07
期刊：
影响因子：
--
通讯作者：
Wonil Choi;B. Urgaonkar;M. Kandemir;Myoungsoo Jung
中科院分区：
文献类型：
--
作者：
Wonil Choi;B. Urgaonkar;M. Kandemir;Myoungsoo Jung
我们认为，与带宽和容量一样，fl闪存设备的寿命也是一项需要明确和仔细管理的关键资源，尤其是在新兴的整合环境中。我们研究了在需要统一工作负载间的“公平性”的情况下所产生的多资源分配问题。为此，我们建议采用众所周知的主导资源公平(DRF)概念。我们的经验表明，只使用带宽和容量(而忽略寿命)的DRF可能会导致较差的器件寿命。然而，将生命周期纳入其中并不是一件微不足道的事情。我们确定了这种适应中的关键挑战，并提出了简单的启发式方法。我们还讨论了可能的设计选择，这些选择将在未来的工作中充分探索。
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 band-width 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.