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