<html lang="en"> <head> <title>Subroutines - GNU gprof</title> <meta http-equiv="Content-Type" content="text/html"> <meta name="description" content="GNU gprof"> <meta name="generator" content="makeinfo 4.13"> <link title="Top" rel="start" href="index.html#Top"> <link rel="up" href="Call-Graph.html#Call-Graph" title="Call Graph"> <link rel="prev" href="Callers.html#Callers" title="Callers"> <link rel="next" href="Cycles.html#Cycles" title="Cycles"> <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> <!-- This file documents the gprof profiler of the GNU system. Copyright (C) 1988-2015 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the section entitled ``GNU Free Documentation License''. --> <meta http-equiv="Content-Style-Type" content="text/css"> <style type="text/css"><!-- pre.display { font-family:inherit } pre.format { font-family:inherit } pre.smalldisplay { font-family:inherit; font-size:smaller } pre.smallformat { font-family:inherit; font-size:smaller } pre.smallexample { font-size:smaller } pre.smalllisp { font-size:smaller } span.sc { font-variant:small-caps } span.roman { font-family:serif; font-weight:normal; } span.sansserif { font-family:sans-serif; font-weight:normal; } --></style> </head> <body> <div class="node"> <a name="Subroutines"></a> <p> Next: <a rel="next" accesskey="n" href="Cycles.html#Cycles">Cycles</a>, Previous: <a rel="previous" accesskey="p" href="Callers.html#Callers">Callers</a>, Up: <a rel="up" accesskey="u" href="Call-Graph.html#Call-Graph">Call Graph</a> <hr> </div> <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>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: <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> <p>Here are the meanings of the fields in the subroutine-line for <code>main</code> calling <code>report</code>: <dl> <dt><code>self</code><dd>An estimate of the amount of time spent directly within <code>report</code> when <code>report</code> was called from <code>main</code>. <br><dt><code>children</code><dd>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>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>. <br><dt><code>called</code><dd>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>. <br><dt><code>name</code><dd>The name of the subroutine of <code>main</code> to which this line applies, followed by the subroutine's index number. <p>If the caller is part of a recursion cycle, the cycle number is printed between the name and the index number. </dl> </body></html>