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Reducing User-Perceived Latency in Mobile Applications via
Prefetching and Caching
by
Yixue Zhao
A Dissertation Presented to the
FACULTY OF THE USC GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Ful llment of the
Requirements for the Degree
DOCTOR OF PHILOSOPHY
(COMPUTER SCIENCE)
December 2020
Copyright 2020 Yixue Zhao
Object Description
| Title | Reducing user-perceived latency in mobile applications via prefetching and caching |
| Author | Zhao, Yixue |
| Author email | yixuezha@usc.edu;felicitia2010@gmail.com |
| Degree | Doctor of Philosophy |
| Document type | Dissertation |
| Degree program | Computer Science |
| School | Viterbi School of Engineering |
| Date defended/completed | 2020-10-16 |
| Date submitted | 2020-11-23 |
| Date approved | 2020-11-29 |
| Restricted until | 2020-11-29 |
| Date published | 2020-11-29 |
| Advisor (committee chair) | Medvidovic, Nenad |
| Advisor (committee member) |
Wang, Chao Krishnamachari, Bhaskar |
| Abstract | Prefetching and caching is a fundamental approach to reduce user-perceived latency, and has been shown effective in various domains for decades. However, its application on today’s mobile apps remains largely under-explored. This is an important but overlooked research area since mobile devices have become the dominant platform, and this trend is reflected in the billions of mobile devices and millions of mobile apps in use today. At the same time, user-perceived latency has been shown to have a large impact on mobile-user experience and can cause significant economic consequences. ❧ In this dissertation, I aim to fill this gap by providing a multifaceted solution to establish the foundation for exploring prefetching and caching in the mobile-app domain. To that end, my dissertation consists of four major elements. As a first step, I conducted an extensive study to investigate the opportunities for applying prefetching and caching techniques in mobile apps, providing empirical evidence on their applicability and demonstrating insights to guide future techniques. Second, I developed PALOMA, the first content-based prefetching technique for mobile apps using program analysis, which has achieved significant latency reduction with high accuracy and negligible overhead. Third, I constructed HiPHarness, a tailorable framework for investigating history-based prefetching in a wide range of scenarios. Guided by today’s stringent privacy regulations that have limited the access to mobile-user data, I further leveraged HiPHarness to conduct the first study on history-based prefetching with “small” prediction models, demonstrating its feasibility on mobile platforms and in turn, opening up a new research direction. Finally, to reduce the manual effort required in evaluating prefetching and caching techniques, I have devised FrUITeR, a customizable framework for assessing test-reuse techniques, in order to automatically select suitable test cases for evaluating prefetching and caching techniques without real users’ engagement as required previously. |
| Keyword | mobile applications; performance; software testing; open science |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Provenance | Electronically uploaded by the author |
| Type | texts |
| Legacy record ID | usctheses-m |
| Contributing entity | University of Southern California |
| Rights | Zhao, Yixue |
| Physical access | The author retains rights to his/her dissertation, thesis or other graduate work according to U.S. copyright law. Electronic access is being provided by the USC Libraries in agreement with the author, as the original true and official version of the work, but does not grant the reader permission to use the work if the desired use is covered by copyright. It is the author, as rights holder, who must provide use permission if such use is covered by copyright. The original signature page accompanying the original submission of the work to the USC Libraries is retained by the USC Libraries and a copy of it may be obtained by authorized requesters contacting the repository e-mail address given. |
| Repository name | University of Southern California Digital Library |
| Repository address | USC Digital Library, University of Southern California, University Park Campus MC 7002, 106 University Village, Los Angeles, California 90089-7002, USA |
| Repository email | cisadmin@lib.usc.edu |
| Filename | etd-ZhaoYixue-9153.pdf |
| Archival file | Volume14/etd-ZhaoYixue-9153.pdf |
Description
| Title | Page 1 |
| Full text | Reducing User-Perceived Latency in Mobile Applications via Prefetching and Caching by Yixue Zhao A Dissertation Presented to the FACULTY OF THE USC GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Ful llment of the Requirements for the Degree DOCTOR OF PHILOSOPHY (COMPUTER SCIENCE) December 2020 Copyright 2020 Yixue Zhao |
