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83 lines
3.1 KiB
HTML
<html><head>
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<title>swim - RAMDISK
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</title>
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<link rev=made href="mailto:mttrader@access.mountain.net">
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</head><body>
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<h1>
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swim - chapter 12<br>
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RAMDISK
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</h1>
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<pre>usage: swim --ramdiskon
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swim --ramdiskoff
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options: [-n] [--searchfile] [--arch <architecture>]
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[--dists <distribution>] [--dbpath] [--root]
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no options for --ramdiskoff
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</pre>
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<P>
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<hr>
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<h2><A name="s12.1">
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12.1 OVERVIEW
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</A></h2>
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A ramdisk can be mounted below the default path or the specified path for
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the databases in the dramdisk directory. The ramdisk is used to speed up
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powersearchs and/or file/dir listings for packages from the not-installed
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system. Also, this is useful if a computer system is heavily loaded with
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other processes using the memory, and the ramdisk tends to persist even
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after being unmounted. Modern kernels usually are built with support for
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ramdisks. If these options do not work the kernel will need to be compiled
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to support ramdisks by answering yes to RAM disk support. Perhaps the best
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<em>README</em> showing how to configure and compile a kernel comes with
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the <em>kernel sources</em> in the main directory.
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<P>
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<strong>--ramdiskon</strong> allows a ramdisk to be created and mounted.
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If called with <strong>-n</strong> (not-installed databases)
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<em>ncontents-arch-dists.deb.gz</em> will automatically be written to the
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mounted ramdisk. This provides faster file/dir listing capabilities when
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using <strong>-l</strong>, <strong>--df</strong>, or <strong>-d</strong>
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when querying the not-installed system. Faster powersearch capabilities
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are available through the option <strong>--searchfile</strong>. If the
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search databases are not already compressed, they will now be compressed,
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this usually only needs to be done once or until the databases are updated
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or rebuilt again. The search databases will then be written to the mounted
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ramdisk. An installed system only writes the search databases to the
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mounted ramdisk, so always use --searchfile when specifying installed
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system databases.
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<P>
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<strong>--ramdiskoff</strong> is used to unmount the ramdisk. The
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not-installed databases and the installed databases can not be
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simultaneously provided by a mounted ramdisk, use
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<strong>--ramdiskoff</strong> first, then <strong>--ramdiskon</strong> to
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install the other databases of choice. This also pertains to different
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distributions and/or architectures.
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<P>
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See the section ``<A href="ch-query.html#s-specdata">SPECIFYING THE DATABASES TO USE
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, section 9.2</A>'' for
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options <strong>--arch</strong>, <strong>-dists</strong>.
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<P>
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See the section ``<A href="ch-query.html#s-dblocus">DATABASE LOCATIONS
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, section 9.11</A>'' for options
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<strong>--dbpath</strong> and <strong>--root</strong>.
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<hr>
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swim
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- <A href="index.html#copyright">
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Copyright <20> 1999 Jonathan D. Rosenbaum
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</A>
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<br>
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<A href="index.html#toc">Contents</A>; <A href="ch13.html">next</A>; <A href="ch-search.html">back</A>.
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<br>
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<address>15 June 1999<br>
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Jonathan D. Rosenbaum<A href="mailto:mttrader@access.mountain.net">mttrader@access.mountain.net</A></address>
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</body></html>
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