mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-28 22:36:24 +01:00
87 lines
2.9 KiB
Perl
87 lines
2.9 KiB
Perl
.\" Copyright (c) 1990 The Regents of the University of California.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)0.t 5.1 (Berkeley) 4/16/91
|
|
.\"
|
|
.rm CM
|
|
.nr PO 1.25i
|
|
.ds CH "
|
|
.ds CF "%
|
|
.nr Fn 0 1
|
|
.ds b3 4.3\s-1BSD\s+1
|
|
.de KI
|
|
.ds Lb "Fig. \\n+(Fn
|
|
.KF
|
|
.ce 1
|
|
Figure \\n(Fn - \\$1.
|
|
..
|
|
.de SM
|
|
\\s-1\\$1\\s+1\\$2
|
|
..
|
|
.de NM
|
|
\&\fI\\$1\fP\\$2
|
|
..
|
|
.de RN
|
|
\&\fI\\$1\fP\^(\^)\\$2
|
|
..
|
|
.de PN
|
|
\&\fB\\$1\fP\\$2
|
|
..
|
|
.TL
|
|
A Pageable Memory Based Filesystem
|
|
.AU
|
|
Marshall Kirk McKusick
|
|
.AU
|
|
Michael J. Karels
|
|
.AU
|
|
Keith Bostic
|
|
.AI
|
|
Computer Systems Research Group
|
|
Computer Science Division
|
|
Department of Electrical Engineering and Computer Science
|
|
University of California, Berkeley
|
|
Berkeley, California 94720
|
|
.sp
|
|
email: mckusick@cs.Berkeley.EDU
|
|
telephone: 415-642-4948
|
|
.AB
|
|
This paper describes the motivations for memory-based filesystems.
|
|
It compares techniques used to implement them and
|
|
describes the drawbacks of using dedicated memory to
|
|
support such filesystems.
|
|
To avoid the drawbacks of using dedicated memory,
|
|
it discusses building a simple memory-based
|
|
filesystem in pageable memory.
|
|
It details the performance characteristics of this filesystem
|
|
and concludes with areas for future work.
|
|
.AE
|
|
.LP
|