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<title>gfperf-tree</title>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" title="gfperf-tree">
<a name="gfperf-tree.1"></a><div class="titlepage"></div>
<div class="refnamediv">
<a name="name"></a><h2>Name</h2>
<p>gfperf-tree — Gfarm measure directory tree performance</p>
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<div class="refsynopsisdiv" title="Synopsis">
<a name="synopsis"></a><h2>Synopsis</h2>
<div class="cmdsynopsis"><p><code class="command">gfperf-tree</code> [-t, --testdir <em class="replaceable"><code>test directory</code></em>] [-w, --width <em class="replaceable"><code>number of directories</code></em>] [-d, --depth <em class="replaceable"><code>depth of directories</code></em>] [-u, --unit <em class="replaceable"><code>output unit</code></em>]</p></div>
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<div class="refsect1" title="DESCRIPTION">
<a name="description"></a><h2>DESCRIPTION</h2>
<p>This command creates a directory tree in <em class="parameter"><code>test directory</code></em>. And measures performance creating directory tree and removing it.
The created directory tree has <em class="parameter"><code>number of directories</code></em> in each subdirectories. Total depth of the tree is <em class="parameter"><code> depth of directories</code></em>
</p>
<p>Output unit is ops (operation per second) or usec (micro second).
</p>
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<div class="refsect1" title="OPTIONS">
<a name="options"></a><h2>OPTIONS</h2>
<div class="variablelist"><dl>
<dt><span class="term"><code class="option">-t, --testdir</code> <em class="parameter"><code>test directory</code></em></span></dt>
<dd><p>
Directory tree is created in <em class="parameter"><code>test directory</code></em>.
If gfarm url (that begins with gfarm:///) is specified, measured by gfarm functions. If file url (that begins with file:///) is specified, measured by posix functions.
The default is gfarm:///tmp .
</p></dd>
<dt><span class="term"><code class="option">-w, --width</code> <em class="parameter"><code>number of directories</code></em></span></dt>
<dd><p>
Specify number of directories in each subdirectories.
</p></dd>
<dt><span class="term"><code class="option">-d, --depth</code> <em class="parameter"><code>depth of directories</code></em></span></dt>
<dd><p>
Total depth of directory tree.
</p></dd>
<dt><span class="term"><code class="option">-u, --uinit</code> <em class="parameter"><code>output unit</code></em></span></dt>
<dd><p>Specify ops (operations per second) or usec (micro second).
The default is ops.
</p></dd>
</dl></div>
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