Fast Application Launch on Personal Computing/Communication Devices


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.

FAST '23 Open Access Sponsored by

Open Access Media

USENIX is committed to Open Access to the research presented at our events. Papers and proceedings are freely available to everyone once the event begins. Any video, audio, and/or slides that are posted after the event are also free and open to everyone. Support USENIX and our commitment to Open Access.

This content is available to:

@inproceedings {285752,
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 = {},
publisher = {USENIX Association},
month = feb

Presentation Video