Zhe Yang, Youyou Lu, Xiaojian Liao, Youmin Chen, Junru Li, Siyu He, and Jiwu Shu, Tsinghua University
The emerging computational storage device offers an opportunity for in-storage computing. It alleviates the overhead of data movement between the host and the device, and thus accelerates data-intensive applications. In this paper, we present λ-IO, a unified IO stack managing both computation and storage resources across the host and the device. We propose a set of designs – interface, runtime, and scheduling – to tackle three critical issues. We implement λ-IO in full-stack software and hardware environment, and evaluate it with synthetic and real applications against Linux IO, showing up to 5.12× performance improvement.
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author = {Zhe Yang and Youyou Lu and Xiaojian Liao and Youmin Chen and Junru Li and Siyu He and Jiwu Shu},
title = {{λ-IO}: A Unified {IO} Stack for Computational Storage},
booktitle = {21st USENIX Conference on File and Storage Technologies (FAST 23)},
year = {2023},
isbn = {978-1-939133-32-8},
address = {Santa Clara, CA},
pages = {347--362},
url = {https://www.usenix.org/conference/fast23/presentation/yang-zhe},
publisher = {USENIX Association},
month = feb
}
