Paper Info
Title
A user-space file system for on-demand legacy desktop software.
Abstract
Some user-level virtualization technologies have been used to convert legacy software (like the existing Windows desktop applications) into the on-demand software without any modification. To give the client a friendly and compatible method to access on-demand legacy software across the Internet, this paper presents a client-end file system for this usage case. It is a Windows user-space file system based on the cloud storage (where the on-demand software is stored), which converts the local file system accesses into remote visits. Quite a few optimizations are adopted and adjusted to suit the file-access-pattern of on-demand software, including the local cache, metadata/data/software pre-fetch and content-addressable storage (CAS), to decrease the number of remote visits and/or to overlap IO (input/output) operations with software execution. Detailed access-pattern analyses are also presented. This file system has been implemented and tests show that it is practical for much daily-used software—a local cache of limited size can provide up to 80% hit ratio and the corresponding overhead of running-time is about 37%. Owing to this method, on any compatible and networked computer, a user can use his/her personalized software conveniently although it does not exist on the local host.
Year
DOI
Venue
2011
10.1007/s11432-011-4255-2
SCIENCE CHINA Information Sciences
Keywords
Field
DocType
software as a service,input output,legacy software
Virtual file system,Stub file,Computer science,Device file,Software system,Fork (file system),Backporting,Software construction,Operating system,Database,Computer file
Journal
Volume
Issue
ISSN
54
6
null
Citations 
PageRank 
References 
0
0.34
7
Authors
3
Name
Order
Citations
PageRank
Youhui Zhang120228.36
Gelin Su241.49
Weimin Zheng31889182.48