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| <a name="Subroutines"></a> |
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| 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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| <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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