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Annotation of www/softupdate.html, Revision 1.1

1.1     ! deraadt     1: <!DOCTYPE HTML PUBLIC  "-//IETF//DTD HTML Strict//EN">
        !             2: <html>
        !             3: <head>
        !             4: <title>Soft Updates</title>
        !             5: <link rev=made href=mailto:www@openbsd.org>
        !             6: <meta name="resource-type" content="document">
        !             7: <meta name="copyright" content="This document copyright 1997 by OpenBSD.">
        !             8: </head>
        !             9:
        !            10: <BODY BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#23238E">
        !            11:
        !            12: <img alt="[OpenBSD]" SRC="images/smalltitle.gif">
        !            13: <p>
        !            14:
        !            15: <h2><font color=#0000e0>Soft Updates</font></h2>
        !            16:
        !            17: Over the last two years Kirk McKusick has been working on something
        !            18: called "soft updates".  This is based on an idea proposed by Greg
        !            19: Ganger and Yale Patt that imposing a partial ordering on the buffer
        !            20: cache operations would permit the requirement for syncronous writing
        !            21: of directory entries to be removed from the FFS code.  Thus, a large
        !            22: performance increase of disk writing performance.
        !            23: <p>
        !            24:
        !            25: <strong>NOTE: This code only works in OpenBSD -current.  It does NOT
        !            26: work in OpenBSD 2.2! Don't even waste your time downloading it if you
        !            27: are not running OpenBSD -current.</strong>
        !            28: <p>
        !            29:
        !            30: The source code for doing this is not yet free.  You should read the
        !            31: copyright notices on the files carefully.
        !            32: Current versions of the files are
        !            33: <a href=http://pdos.lcs.mit.edu/~csapuntz/softdep.tar.gz>available</a>.
        !            34: Note that using this archive (which is updated often) with a system more
        !            35: than 3 days old might cause you serious grief.  You've been warned.
        !            36: <p>
        !            37:
        !            38: Please direct all problem reports with as MUCH information as possible
        !            39: (kernel coredumps, tracebacks, etc) to
        !            40: <a href=mailto:csapuntz@openbsd.org>Costa</a>.
        !            41: Do not waste his time with any other questions or incomplete problem
        !            42: reports.