Junhee Ryu, SK hynix; Dongeun Lee, Texas A&M University - Commerce; Kang G. Shin, University of Michigan; Kyungtae Kang, Hanyang University
We present Paralfetch, a novel prefetcher to speed up app launches on personal computing/communication devices by: 1) accurate collection of launch-related disk read requests, 2) pre-scheduling of these requests to improve I/O throughput during prefetching, and 3) overlapping app execution with disk prefetching for hiding disk access time from the app execution. We have implemented Paralfetch under Linux kernels on a desktop/laptop PC, a Raspberry Pi 3 board, and an Android smartphone. Tests with popular apps show that Paralfetch significantly reduces app launch times on flash-based drives, and outperforms GSoC Prefetch and FAST, which are representative app prefetchers available for Linux-based systems.
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author = {Junhee Ryu and Dongeun Lee and Kang G. Shin and Kyungtae Kang},
title = {Fast Application Launch on Personal {Computing/Communication} Devices},
booktitle = {21st USENIX Conference on File and Storage Technologies (FAST 23)},
year = {2023},
isbn = {978-1-939133-32-8},
address = {Santa Clara, CA},
pages = {425--440},
url = {https://www.usenix.org/conference/fast23/presentation/ryu},
publisher = {USENIX Association},
month = feb
}
