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- <a name="Subroutines"></a>
- <div class="header">
- <p>
- Next: <a href="Cycles.html#Cycles" accesskey="n" rel="next">Cycles</a>, Previous: <a href="Callers.html#Callers" accesskey="p" rel="prev">Callers</a>, Up: <a href="Call-Graph.html#Call-Graph" accesskey="u" rel="up">Call Graph</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p>
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- <hr>
- <a name="Lines-for-a-Function_0027s-Subroutines"></a>
- <h4 class="subsection">5.2.3 Lines for a Function’s Subroutines</h4>
-
- <p>A function’s entry has a line for each of its subroutines—in other
- words, a line for each other function that it called. These lines’
- fields correspond to the fields of the primary line, but their meanings
- are different because of the difference in context.
- </p>
- <p>For reference, we repeat two lines from the entry for the function
- <code>main</code>, the primary line and a line for a subroutine, 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
- …
- [2] 100.0 0.00 0.05 1 main [2]
- 0.00 0.05 1/1 report [3]
- </pre></div>
-
- <p>Here are the meanings of the fields in the subroutine-line for <code>main</code>
- calling <code>report</code>:
- </p>
- <dl compact="compact">
- <dt><code>self</code></dt>
- <dd><p>An estimate of the amount of time spent directly within <code>report</code>
- when <code>report</code> was called from <code>main</code>.
- </p>
- </dd>
- <dt><code>children</code></dt>
- <dd><p>An estimate of the amount of time spent in subroutines of <code>report</code>
- when <code>report</code> was called from <code>main</code>.
- </p>
- <p>The sum of the <code>self</code> and <code>children</code> fields is an estimate
- of the total time spent in calls to <code>report</code> from <code>main</code>.
- </p>
- </dd>
- <dt><code>called</code></dt>
- <dd><p>Two numbers, the number of calls to <code>report</code> from <code>main</code>
- followed by the total number of non-recursive calls to <code>report</code>.
- This ratio is used to determine how much of <code>report</code>’s <code>self</code>
- and <code>children</code> time gets credited to <code>main</code>.
- See <a href="Assumptions.html#Assumptions">Estimating <code>children</code> Times</a>.
- </p>
- </dd>
- <dt><code>name</code></dt>
- <dd><p>The name of the subroutine of <code>main</code> to which this line applies,
- followed by the subroutine’s index number.
- </p>
- <p>If the caller is part of a recursion cycle, the cycle number is
- printed between the name and the index number.
- </p></dd>
- </dl>
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