一句话：分析表明现有 I/O 缓存架构会成为超快存储设备的性能瓶颈，需重新架构以释放其潜力。
论文关注企业存储系统中 I/O 缓存如何利用新兴超快存储设备。传统研究多将 SSD 作为 HDD 阵列之上的缓存层；随着超快存储设备出现，近期工作建议将其作为主流 SSD 之上的 I/O 缓存。然而，作者通过详细分析发现，尽管超快存储设备具有显著性能潜力，现有 I/O 缓存架构可能成为企业存储系统的主要性能瓶颈，阻碍充分发挥设备性能。摘要未给出具体新架构细节或量化结果，仅指出重新架构 I/O 缓存的必要性。
I/O caching has widely been used in enterprise storage systems to enhance the system performance with minimal cost. Using Solid-State Drives (SSDs) as an I/O caching layer on the top of arrays of Hard Disk Drives (HDDs) has been well studied in numerous studies. With emergence of ultra fast storage devices, recent studies suggest to use them as an I/O cache layer on top of mainstream SSDs in I/O intensive applications. Our detailed analysis shows despite significant potential of ultra-fast storage devices, existing I/O cache architectures may act as a major performance bottleneck in enterprise storage systems, which prevents to take advantage of the device full performance potentials.
@inproceedings{paperbot10092,
title = {Re-architecting I/O Caches for Emerging Fast Storage Devices},
author = {Mohammadamin Ajdari and Pouria Peykani Sani and Amirhossein Moradi and Masoud Khanalizadeh Imani and Amir Hossein Bazkhanei and Hossein Asadi},
booktitle = {ASPLOS},
year = {2023},
doi = {10.1145/3582016.3582041}
}