89 lines
3.9 KiB
HTML
89 lines
3.9 KiB
HTML
<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 4.7">
|
|
<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, 92, 97, 98, 99, 2000, 2001, 2003, 2007 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 1.1
|
|
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''.
|
|
|
|
man end-->
|
|
<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; }
|
|
--></style>
|
|
</head>
|
|
<body>
|
|
<div class="node">
|
|
<p>
|
|
<a name="Subroutines"></a>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><br>
|
|
</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>
|
|
|