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<a name="Primary"></a>
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<p>
Next: <a href="Callers.html#Callers" accesskey="n" rel="next">Callers</a>, Up: <a href="Call-Graph.html#Call-Graph" accesskey="u" rel="up">Call Graph</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p>
</div>
<hr>
<a name="The-Primary-Line"></a>
<h4 class="subsection">5.2.1 The Primary Line</h4>

<p>The <em>primary line</em> in a call graph entry is the line that
describes the function which the entry is about and gives the overall
statistics for this function.
</p>
<p>For reference, we repeat the primary line from the entry for function
<code>report</code> in our main example, together with the heading line that
shows the names of the fields:
</p>
<div class="smallexample">
<pre class="smallexample">index  % time    self  children called     name
&hellip;
[3]    100.0    0.00    0.05       1         report [3]
</pre></div>

<p>Here is what the fields in the primary line mean:
</p>
<dl compact="compact">
<dt><code>index</code></dt>
<dd><p>Entries are numbered with consecutive integers.  Each function
therefore has an index number, which appears at the beginning of its
primary line.
</p>
<p>Each cross-reference to a function, as a caller or subroutine of
another, gives its index number as well as its name.  The index number
guides you if you wish to look for the entry for that function.
</p>
</dd>
<dt><code>% time</code></dt>
<dd><p>This is the percentage of the total time that was spent in this
function, including time spent in subroutines called from this
function.
</p>
<p>The time spent in this function is counted again for the callers of
this function.  Therefore, adding up these percentages is meaningless.
</p>
</dd>
<dt><code>self</code></dt>
<dd><p>This is the total amount of time spent in this function.  This
should be identical to the number printed in the <code>seconds</code> field
for this function in the flat profile.
</p>
</dd>
<dt><code>children</code></dt>
<dd><p>This is the total amount of time spent in the subroutine calls made by
this function.  This should be equal to the sum of all the <code>self</code>
and <code>children</code> entries of the children listed directly below this
function.
</p>
</dd>
<dt><code>called</code></dt>
<dd><p>This is the number of times the function was called.
</p>
<p>If the function called itself recursively, there are two numbers,
separated by a &lsquo;<samp>+</samp>&rsquo;.  The first number counts non-recursive calls,
and the second counts recursive calls.
</p>
<p>In the example above, the function <code>report</code> was called once from
<code>main</code>.
</p>
</dd>
<dt><code>name</code></dt>
<dd><p>This is the name of the current function.  The index number is
repeated after it.
</p>
<p>If the function is part of a cycle of recursion, the cycle number is
printed between the function&rsquo;s name and the index number
(see <a href="Cycles.html#Cycles">How Mutually Recursive Functions Are Described</a>).
For example, if function <code>gnurr</code> is part of
cycle number one, and has index number twelve, its primary line would
be end like this:
</p>
<div class="example">
<pre class="example">gnurr &lt;cycle 1&gt; [12]
</pre></div>
</dd>
</dl>

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<p>
Next: <a href="Callers.html#Callers" accesskey="n" rel="next">Callers</a>, Up: <a href="Call-Graph.html#Call-Graph" accesskey="u" rel="up">Call Graph</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p>
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