The MBFS Project
The goal of the MBFS project is to design high-performance file
systems via the efficient use of memory.
File systems have historically suffered from high access
latencies that, in recent years, have become even worse relative to
processor speeds.
Emerging technologies
such as wireless computing, telecommuting environments, and even
CD-ROMs exhibit higher latencies than conventional file systems.
The MBFS project tries to make effective use of local and
remote memory resources to reduce both read and write latency.
MBFS supports a prefetching system that attempts to hide or mask file
system latency by automatically
moving data into the system at a rate equal but not exceeding the
processors demand for data.
MBFS also supports a global memory architecture that provides
cost-effective reliable
memory-based storage that significantly reduces write latency.
Simulation models of both the prefetching and memory based storage
system have been implemented and tested on real file traces. In
addition, a SunOS 4.1 implementation exists and has been used to evaluate
performance in a real system. A Solaris 2.x port is underway.
We gathered our own detail file system traces for use in our
simulations. Additional information regarding our trace data can be
found by clicking here .
J. Griffioen
and
R. Appleton ,
The Design, Implementation, and Evaluation of a Predictive Caching
File System ,
Department of Computer Science Technical Report CS264-96,
June, 1996,
(
postscript ),
(
gzipped postscript )
J. Griffioen ,
R. Vingralek ,
T. Anderson ,
and
Y. Breitbart ,
Derby: A Memory Management System for Distributed Main Memory
Databases ,
In the
Proceedings of the 6th International Workshop on
Research Issues in Data Engineering (RIDE '96)
February, 1996,
(
html ),
(
postscript ),
(
gzipped postscript )
J. Griffioen ,
T. Anderson ,
and
Y. Breitbart ,
A Dynamic Migration Algorithm for a Distributed Memory-Based File
Management System ,
In the
Proceedings of the 7th International Workshop on
Research Issues in Data Engineering (RIDE '97)
February, 1997,
(
html ),
(
postscript ),
(
gzipped postscript )
J. Griffioen
and
R. Appleton ,
Performance Measurements of Automatic Prefetching,
In
Proceedings of the ISCA International Conference on Parallel and
Distributed Computing Systems,
September 1995,
(
postscript ),
(
gzipped postscript ), A longer more detailed version of this paper
appeared as TR CS256-95 (see below)
J. Griffioen
and
R. Appleton ,
Performance Measurements of Automatic Prefetching,
Department of Computer Science Technical Report CS256-95,
May, 1995,
(
postscript ),
(
gzipped postscript )
J. Griffioen
and
R. Appleton ,
Reducing File System Latency using a Predictive Approach ,
In
Proceedings of the 1994 Summer USENIX Conference
, USENIX Assoc. ,
June, 1994, pp 8-12,
also released as TR CS247-94,
(
postscript ),
(
gzipped postscript )
J. Griffioen
and
R. Appleton ,
Automatic Prefetching in a WAN,
In
Proceedings of the IEEE Workshop on Advances
in Parallel and Distributed Systems
October, 1993, pp 8-12,
also released as TR CS243-93,
(
postscript ),
(
gzipped postscript) )
Page last updated by
Todd Anderson
( anderson@dcs.uky.edu )
on 9/12/1997