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diff --git a/share/doc/papers/memfs/0.t b/share/doc/papers/memfs/0.t new file mode 100644 index 0000000..d476f17 --- /dev/null +++ b/share/doc/papers/memfs/0.t @@ -0,0 +1,86 @@ +.\" 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 |