You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
130 lines
5.3 KiB
HTML
130 lines
5.3 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<!-- This file documents the gprof profiler of the GNU system.
|
|
|
|
Copyright (C) 1988-2019 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".
|
|
-->
|
|
<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
|
|
<head>
|
|
<title>Subroutines (GNU gprof)</title>
|
|
|
|
<meta name="description" content="Subroutines (GNU gprof)">
|
|
<meta name="keywords" content="Subroutines (GNU gprof)">
|
|
<meta name="resource-type" content="document">
|
|
<meta name="distribution" content="global">
|
|
<meta name="Generator" content="makeinfo">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<link href="index.html#Top" rel="start" title="Top">
|
|
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
|
<link href="Call-Graph.html#Call-Graph" rel="up" title="Call Graph">
|
|
<link href="Cycles.html#Cycles" rel="next" title="Cycles">
|
|
<link href="Callers.html#Callers" rel="prev" title="Callers">
|
|
<style type="text/css">
|
|
<!--
|
|
a.summary-letter {text-decoration: none}
|
|
blockquote.indentedblock {margin-right: 0em}
|
|
blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
|
|
blockquote.smallquotation {font-size: smaller}
|
|
div.display {margin-left: 3.2em}
|
|
div.example {margin-left: 3.2em}
|
|
div.lisp {margin-left: 3.2em}
|
|
div.smalldisplay {margin-left: 3.2em}
|
|
div.smallexample {margin-left: 3.2em}
|
|
div.smalllisp {margin-left: 3.2em}
|
|
kbd {font-style: oblique}
|
|
pre.display {font-family: inherit}
|
|
pre.format {font-family: inherit}
|
|
pre.menu-comment {font-family: serif}
|
|
pre.menu-preformatted {font-family: serif}
|
|
pre.smalldisplay {font-family: inherit; font-size: smaller}
|
|
pre.smallexample {font-size: smaller}
|
|
pre.smallformat {font-family: inherit; font-size: smaller}
|
|
pre.smalllisp {font-size: smaller}
|
|
span.nolinebreak {white-space: nowrap}
|
|
span.roman {font-family: initial; font-weight: normal}
|
|
span.sansserif {font-family: sans-serif; font-weight: normal}
|
|
ul.no-bullet {list-style: none}
|
|
-->
|
|
</style>
|
|
|
|
|
|
</head>
|
|
|
|
<body lang="en">
|
|
<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>
|
|
</div>
|
|
<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>
|
|
|
|
<hr>
|
|
<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>
|
|
</div>
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|