91 lines
3.1 KiB
HTML
91 lines
3.1 KiB
HTML
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<html>
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<head>
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<title>dirconc</title>
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<link rel="stylesheet" type="text/css" media="all" href="../man.css">
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</head>
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<body bgcolor=#ffffff>
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<h2 align=center>dirconc</h2>
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<h4 align=center>OS/161 Reference Manual</h4>
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<h3>Name</h3>
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<p>
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dirconc - concurrent file system test
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</p>
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<h3>Synopsis</h3>
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<p>
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<tt>/testbin/dirconc</tt> <em>path</em> [<em>randomseed</em>]
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</p>
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<h3>Description</h3>
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<p>
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<tt>dirconc</tt> does random directory operations from many processes
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concurrently. This is a fairly difficult stress test as it exercises
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cross-directory rename. Quite a number of real-world systems have
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failed to handle it or larger/longer builds of it.
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</p>
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<p>
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It does its work in a subdirectory of <em>path</em>, so you can run it
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against whatever filesystem you prefer.
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</p>
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<p>
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If your system survives a <tt>dirconc</tt> run, be sure to check the
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integrity of the filesystem as well. It's not uncommon for
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<tt>dirconc</tt> to provoke filesystem corruption.
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</p>
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<h3>Requirements</h3>
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<p>
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<tt>dirconc</tt> uses the following system calls:
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<ul>
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<li> <A HREF=../syscall/getpid.html>getpid</A>
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<li> <A HREF=../syscall/fork.html>fork</A>
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<li> <A HREF=../syscall/waitpid.html>waitpid</A>
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<li> <A HREF=../syscall/mkdir.html>mkdir</A>
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<li> <A HREF=../syscall/rmdir.html>rmdir</A>
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<li> <A HREF=../syscall/chdir.html>chdir</A>
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<li> <A HREF=../syscall/rename.html>rename</A>
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<li> <A HREF=../syscall/write.html>write</A>
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<li> <A HREF=../syscall/_exit.html>_exit</A>
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</ul>
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</p>
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<p>
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<tt>dirconc</tt> should work properly on SFS once the file system
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assignment is complete. It won't do much of interest on emufs,
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however.
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</p>
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</body>
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</html>
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