@inproceedings{c19c18f3088e465b9ba5057b0b79c8e0,
title = "File fragmentation from the perspective of I/O control",
abstract = "File fragmentation has been widely studied for several decades due to its detrimental effects on I/O activities. However, most of the previous research focuses on its performance aspect in a single application. In this paper, we analyze the effect of fragmentation on I/O control in a consolidated system where multiple applications run simultaneously. Our evaluation demonstrates that all of the weight-based I/O control mechanisms supported by the Linux kernel fail to achieve fair I/O sharing for different reasons when they meet fragmentation. Also, we show that defragmentation can promptly antidote such failures by preventing request splitting and device-level resource conflicts.",
keywords = "cgroups, file fragmentation, I/O control",
author = "Jonggyu Park and Eom, \{Young Ik\}",
note = "Publisher Copyright: {\textcopyright} 2022 ACM.; 14th ACM Workshop on Hot Topics in Storage and File Systems, HotStorage 2022 ; Conference date: 27-06-2022 Through 28-06-2022",
year = "2022",
month = jun,
day = "27",
doi = "10.1145/3538643.3539746",
language = "English",
series = "HotStorage 2022 - Proceedings of the 2022 14th ACM Workshop on Hot Topics in Storage and File Systems",
publisher = "Association for Computing Machinery, Inc",
pages = "126--132",
booktitle = "HotStorage 2022 - Proceedings of the 2022 14th ACM Workshop on Hot Topics in Storage and File Systems",
}