CINXE.COM
dprofpp - display perl profile data - Perldoc Browser
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>dprofpp - display perl profile data - Perldoc Browser</title> <link rel="search" href="/opensearch.xml" type="application/opensearchdescription+xml" title="Perldoc Browser"> <link rel="canonical" href="https://perldoc.perl.org/dprofpp"> <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous"> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/10.5.0/styles/stackoverflow-light.min.css" integrity="sha512-cG1IdFxqipi3gqLmksLtuk13C+hBa57a6zpWxMeoY3Q9O6ooFxq50DayCdm0QrDgZjMUn23z/0PMZlgft7Yp5Q==" crossorigin="anonymous" /> <style> body { background: #f4f4f5; color: #020202; } .navbar-dark { background-image: -webkit-linear-gradient(top, #005f85 0, #002e49 100%); background-image: -o-linear-gradient(top, #005f85 0, #002e49 100%); background-image: linear-gradient(to bottom, #005f85 0, #002e49 100%); filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff005f85', endColorstr='#ff002e49', GradientType=0); background-repeat: repeat-x; } .navbar-dark .navbar-nav .nav-link, .navbar-dark .navbar-nav .nav-link:focus { color: #fff } .navbar-dark .navbar-nav .nav-link:hover { color: #ffef68 } #wrapperlicious { margin: 0 auto; font: 0.9em 'Helvetica Neue', Helvetica, sans-serif; font-weight: normal; line-height: 1.5em; margin: 0; padding: 0; } #wrapperlicious h1 { font-size: 1.5em } #wrapperlicious h2 { font-size: 1.3em } #wrapperlicious h3 { font-size: 1.1em } #wrapperlicious h4 { font-size: 0.9em } #wrapperlicious h1, #wrapperlicious h2, #wrapperlicious h3, #wrapperlicious h4, #wrapperlicious dt { color: #020202; margin-top: 1em; margin-bottom: 1em; position: relative; font-weight: bold; } #wrapperlicious a { color: inherit; text-decoration: underline } #wrapperlicious #toc { text-decoration: none } #wrapperlicious a:hover { color: #2a2a2a } #wrapperlicious a img { border: 0 } #wrapperlicious :not(pre) > code { color: inherit; background-color: rgba(0, 0, 0, 0.04); border-radius: 3px; font: 0.9em Consolas, Menlo, Monaco, monospace; padding: 0.3em; } #wrapperlicious dd { margin: 0; margin-left: 2em; } #wrapperlicious dt { color: #2a2a2a; font-weight: bold; margin-left: 0.9em; } #wrapperlicious p { margin-bottom: 1em; margin-top: 1em; } #wrapperlicious li > p { margin-bottom: 0; margin-top: 0; } #wrapperlicious pre { border: 1px solid #c1c1c1; border-radius: 3px; font: 100% Consolas, Menlo, Monaco, monospace; margin-bottom: 1em; margin-top: 1em; } #wrapperlicious pre > code { display: block; background-color: #f6f6f6; font: 0.9em Consolas, Menlo, Monaco, monospace; line-height: 1.5em; text-align: left; white-space: pre; padding: 1em; } #wrapperlicious dl, #wrapperlicious ol, #wrapperlicious ul { margin-bottom: 1em; margin-top: 1em; } #wrapperlicious ul { list-style-type: square; } #wrapperlicious ul ul { margin-bottom: 0px; margin-top: 0px; } #footer { font-size: 0.8em; padding-top: 0.5em; text-align: center; } #more { display: inline; font-size: 0.8em; } #perldocdiv { background-color: #fff; border: 1px solid #c1c1c1; border-bottom-left-radius: 5px; border-bottom-right-radius: 5px; margin-left: auto; margin-right: auto; padding: 3em; padding-top: 1em; max-width: 960px; } #moduleversion { float: right } #wrapperlicious .leading-notice { font-style: italic; padding-left: 1em; margin-top: 1em; margin-bottom: 1em; } #wrapperlicious .permalink { display: none; left: -0.75em; position: absolute; padding-right: 0.25em; text-decoration: none; } #wrapperlicious h1:hover .permalink, #wrapperlicious h2:hover .permalink, #wrapperlicious h3:hover .permalink, #wrapperlicious h4:hover .permalink, #wrapperlicious dt:hover .permalink { display: block; } </style> <!-- Global site tag (gtag.js) - Google Analytics --> <script async src="https://www.googletagmanager.com/gtag/js?id=G-KVNWBNT5FB"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-KVNWBNT5FB'); gtag('config', 'UA-50555-3'); </script> </head> <body> <nav class="navbar navbar-expand-md navbar-dark bg-dark justify-content-between"> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <a class="navbar-brand" href="/"><img src="/images/perl_camel_30.png" width="30" height="30" class="d-inline-block align-top" alt="Perl Camel Logo"> Perldoc Browser</a> <div class="collapse navbar-collapse" id="navbarNav"> <ul class="navbar-nav mr-auto"> <li class="nav-item dropdown text-nowrap"> <a class="nav-link dropdown-toggle" href="#" id="dropdownlink-stable" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">5.6.2</a> <div class="dropdown-menu" aria-labelledby="dropdownlink-stable"> <a class="dropdown-item" href="/dprofpp">Latest</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.40.1/dprofpp">5.40.1</a> <a class="dropdown-item" href="/5.40.0/dprofpp">5.40.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.38.3/dprofpp">5.38.3</a> <a class="dropdown-item" href="/5.38.2/dprofpp">5.38.2</a> <a class="dropdown-item" href="/5.38.1/dprofpp">5.38.1</a> <a class="dropdown-item" href="/5.38.0/dprofpp">5.38.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.36.3/dprofpp">5.36.3</a> <a class="dropdown-item" href="/5.36.2/dprofpp">5.36.2</a> <a class="dropdown-item" href="/5.36.1/dprofpp">5.36.1</a> <a class="dropdown-item" href="/5.36.0/dprofpp">5.36.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.34.3/dprofpp">5.34.3</a> <a class="dropdown-item" href="/5.34.2/dprofpp">5.34.2</a> <a class="dropdown-item" href="/5.34.1/dprofpp">5.34.1</a> <a class="dropdown-item" href="/5.34.0/dprofpp">5.34.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.32.1/dprofpp">5.32.1</a> <a class="dropdown-item" href="/5.32.0/dprofpp">5.32.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.30.3/dprofpp">5.30.3</a> <a class="dropdown-item" href="/5.30.2/dprofpp">5.30.2</a> <a class="dropdown-item" href="/5.30.1/dprofpp">5.30.1</a> <a class="dropdown-item" href="/5.30.0/dprofpp">5.30.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.28.3/dprofpp">5.28.3</a> <a class="dropdown-item" href="/5.28.2/dprofpp">5.28.2</a> <a class="dropdown-item" href="/5.28.1/dprofpp">5.28.1</a> <a class="dropdown-item" href="/5.28.0/dprofpp">5.28.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.26.3/dprofpp">5.26.3</a> <a class="dropdown-item" href="/5.26.2/dprofpp">5.26.2</a> <a class="dropdown-item" href="/5.26.1/dprofpp">5.26.1</a> <a class="dropdown-item" href="/5.26.0/dprofpp">5.26.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.24.4/dprofpp">5.24.4</a> <a class="dropdown-item" href="/5.24.3/dprofpp">5.24.3</a> <a class="dropdown-item" href="/5.24.2/dprofpp">5.24.2</a> <a class="dropdown-item" href="/5.24.1/dprofpp">5.24.1</a> <a class="dropdown-item" href="/5.24.0/dprofpp">5.24.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.22.4/dprofpp">5.22.4</a> <a class="dropdown-item" href="/5.22.3/dprofpp">5.22.3</a> <a class="dropdown-item" href="/5.22.2/dprofpp">5.22.2</a> <a class="dropdown-item" href="/5.22.1/dprofpp">5.22.1</a> <a class="dropdown-item" href="/5.22.0/dprofpp">5.22.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.20.3/dprofpp">5.20.3</a> <a class="dropdown-item" href="/5.20.2/dprofpp">5.20.2</a> <a class="dropdown-item" href="/5.20.1/dprofpp">5.20.1</a> <a class="dropdown-item" href="/5.20.0/dprofpp">5.20.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.18.4/dprofpp">5.18.4</a> <a class="dropdown-item" href="/5.18.3/dprofpp">5.18.3</a> <a class="dropdown-item" href="/5.18.2/dprofpp">5.18.2</a> <a class="dropdown-item" href="/5.18.1/dprofpp">5.18.1</a> <a class="dropdown-item" href="/5.18.0/dprofpp">5.18.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.16.3/dprofpp">5.16.3</a> <a class="dropdown-item" href="/5.16.2/dprofpp">5.16.2</a> <a class="dropdown-item" href="/5.16.1/dprofpp">5.16.1</a> <a class="dropdown-item" href="/5.16.0/dprofpp">5.16.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.14.4/dprofpp">5.14.4</a> <a class="dropdown-item" href="/5.14.3/dprofpp">5.14.3</a> <a class="dropdown-item" href="/5.14.2/dprofpp">5.14.2</a> <a class="dropdown-item" href="/5.14.1/dprofpp">5.14.1</a> <a class="dropdown-item" href="/5.14.0/dprofpp">5.14.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.12.5/dprofpp">5.12.5</a> <a class="dropdown-item" href="/5.12.4/dprofpp">5.12.4</a> <a class="dropdown-item" href="/5.12.3/dprofpp">5.12.3</a> <a class="dropdown-item" href="/5.12.2/dprofpp">5.12.2</a> <a class="dropdown-item" href="/5.12.1/dprofpp">5.12.1</a> <a class="dropdown-item" href="/5.12.0/dprofpp">5.12.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.10.1/dprofpp">5.10.1</a> <a class="dropdown-item" href="/5.10.0/dprofpp">5.10.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.8.9/dprofpp">5.8.9</a> <a class="dropdown-item" href="/5.8.8/dprofpp">5.8.8</a> <a class="dropdown-item" href="/5.8.7/dprofpp">5.8.7</a> <a class="dropdown-item" href="/5.8.6/dprofpp">5.8.6</a> <a class="dropdown-item" href="/5.8.5/dprofpp">5.8.5</a> <a class="dropdown-item" href="/5.8.4/dprofpp">5.8.4</a> <a class="dropdown-item" href="/5.8.3/dprofpp">5.8.3</a> <a class="dropdown-item" href="/5.8.2/dprofpp">5.8.2</a> <a class="dropdown-item" href="/5.8.1/dprofpp">5.8.1</a> <a class="dropdown-item" href="/5.8.0/dprofpp">5.8.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item active" href="/5.6.2/dprofpp">5.6.2</a> <a class="dropdown-item" href="/5.6.1/dprofpp">5.6.1</a> <a class="dropdown-item" href="/5.6.0/dprofpp">5.6.0</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.005_04/dprofpp">5.005_04</a> <a class="dropdown-item" href="/5.005_03/dprofpp">5.005_03</a> <a class="dropdown-item" href="/5.005_02/dprofpp">5.005_02</a> <a class="dropdown-item" href="/5.005_01/dprofpp">5.005_01</a> <a class="dropdown-item" href="/5.005/dprofpp">5.005</a> </div> </li> <li class="nav-item dropdown text-nowrap"> <a class="nav-link dropdown-toggle" href="#" id="dropdownlink-dev" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dev</a> <div class="dropdown-menu" aria-labelledby="dropdownlink-dev"> <a class="dropdown-item" href="/blead/dprofpp">blead</a> <a class="dropdown-item" href="/5.41.10/dprofpp">5.41.10</a> <a class="dropdown-item" href="/5.41.9/dprofpp">5.41.9</a> <a class="dropdown-item" href="/5.41.8/dprofpp">5.41.8</a> <a class="dropdown-item" href="/5.41.7/dprofpp">5.41.7</a> <a class="dropdown-item" href="/5.41.6/dprofpp">5.41.6</a> <a class="dropdown-item" href="/5.41.5/dprofpp">5.41.5</a> <a class="dropdown-item" href="/5.41.4/dprofpp">5.41.4</a> <a class="dropdown-item" href="/5.41.3/dprofpp">5.41.3</a> <a class="dropdown-item" href="/5.41.2/dprofpp">5.41.2</a> <a class="dropdown-item" href="/5.41.1/dprofpp">5.41.1</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.40.1-RC1/dprofpp">5.40.1-RC1</a> <a class="dropdown-item" href="/5.40.0-RC2/dprofpp">5.40.0-RC2</a> <a class="dropdown-item" href="/5.40.0-RC1/dprofpp">5.40.0-RC1</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.39.10/dprofpp">5.39.10</a> <a class="dropdown-item" href="/5.39.9/dprofpp">5.39.9</a> <a class="dropdown-item" href="/5.39.8/dprofpp">5.39.8</a> <a class="dropdown-item" href="/5.39.7/dprofpp">5.39.7</a> <a class="dropdown-item" href="/5.39.6/dprofpp">5.39.6</a> <a class="dropdown-item" href="/5.39.5/dprofpp">5.39.5</a> <a class="dropdown-item" href="/5.39.4/dprofpp">5.39.4</a> <a class="dropdown-item" href="/5.39.3/dprofpp">5.39.3</a> <a class="dropdown-item" href="/5.39.2/dprofpp">5.39.2</a> <a class="dropdown-item" href="/5.39.1/dprofpp">5.39.1</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.38.3-RC1/dprofpp">5.38.3-RC1</a> </div> </li> <li class="nav-item dropdown text-nowrap"> <a class="nav-link dropdown-toggle" href="#" id="dropdownlink-nav" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Documentation</a> <div class="dropdown-menu" aria-labelledby="dropdownlink-nav"> <a class="dropdown-item" href="/5.6.2/perl">Perl</a> <a class="dropdown-item" href="/5.6.2/perlintro">Intro</a> <a class="dropdown-item" href="/5.6.2/perl#Tutorials">Tutorials</a> <a class="dropdown-item" href="/5.6.2/perlfaq">FAQs</a> <a class="dropdown-item" href="/5.6.2/perl#Reference-Manual">Reference</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.6.2/perlop">Operators</a> <a class="dropdown-item" href="/5.6.2/functions">Functions</a> <a class="dropdown-item" href="/5.6.2/variables">Variables</a> <a class="dropdown-item" href="/5.6.2/modules">Modules</a> <a class="dropdown-item" href="/5.6.2/perlutil">Utilities</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="/5.6.2/perldelta">Release Notes</a> <a class="dropdown-item" href="/5.6.2/perlcommunity">Community</a> <a class="dropdown-item" href="/5.6.2/perlhist">History</a> </div> </li> </ul> <ul class="navbar-nav"> <script> function set_expand (expand) { var perldocdiv = document.getElementById('perldocdiv'); var width = window.getComputedStyle(perldocdiv).getPropertyValue('max-width'); var expanded = (width == '' || width == 'none') ? true : false; if (expand === null) { expand = !expanded; } if ((expand && !expanded) || (!expand && expanded)) { perldocdiv.style.setProperty('max-width', expand ? 'none' : '960px'); var button_classlist = document.getElementById('content-expand-button').classList; if (expand) { button_classlist.add('btn-light'); button_classlist.remove('btn-outline-light'); } else { button_classlist.add('btn-outline-light'); button_classlist.remove('btn-light'); } } return expand; } function toggle_expand () { var expand = set_expand(null); document.cookie = 'perldoc_expand=' + (expand ? 1 : 0) + '; path=/; expires=Tue, 19 Jan 2038 03:14:07 UTC'; } function read_expand () { return document.cookie.split(';').some(function (item) { return item.indexOf('perldoc_expand=1') >= 0 }); } if (document.readyState === 'loading') { document.addEventListener('DOMContentLoaded', function () { if (read_expand()) { set_expand(true); } }); } else if (read_expand()) { set_expand(true); } </script> <button id="content-expand-button" type="button" class="btn btn-outline-light d-none d-lg-inline-block mr-4" onclick="toggle_expand()">Expand</button> </ul> <form class="form-inline" method="get" action="/5.6.2/search"> <input class="form-control mr-3" type="search" name="q" placeholder="Search" aria-label="Search" value=""> </form> </div> </nav> <div id="wrapperlicious" class="container-fluid"> <div id="perldocdiv"> <div id="links"> <a href="/5.6.2/dprofpp">dprofpp</a> <div id="more"> (<a href="/5.6.2/dprofpp.txt">source</a>, <a href="https://metacpan.org/pod/dprofpp">CPAN</a>) </div> </div> <div class="leading-notice"> You are viewing the version of this documentation from Perl 5.6.2. <a href="/dprofpp">View the latest version</a> </div> <h1><a id="toc">CONTENTS</a></h1> <ul> <li> <a class="text-decoration-none" href="#NAME">NAME</a> </li> <li> <a class="text-decoration-none" href="#SYNOPSIS">SYNOPSIS</a> </li> <li> <a class="text-decoration-none" href="#DESCRIPTION">DESCRIPTION</a> </li> <li> <a class="text-decoration-none" href="#OUTPUT">OUTPUT</a> </li> <li> <a class="text-decoration-none" href="#OPTIONS">OPTIONS</a> </li> <li> <a class="text-decoration-none" href="#ENVIRONMENT">ENVIRONMENT</a> </li> <li> <a class="text-decoration-none" href="#BUGS">BUGS</a> </li> <li> <a class="text-decoration-none" href="#FILES">FILES</a> </li> <li> <a class="text-decoration-none" href="#SEE-ALSO">SEE ALSO</a> </li> </ul> <h1 id="NAME"><a class="permalink" href="#NAME">#</a>NAME</h1> <p>dprofpp - display perl profile data</p> <h1 id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">#</a>SYNOPSIS</h1> <p>dprofpp [<b>-a</b>|<b>-z</b>|<b>-l</b>|<b>-v</b>|<b>-U</b>] [<b>-s</b>|<b>-r</b>|<b>-u</b>] [<b>-q</b>] [<b>-F</b>] [<b>-I|-E</b>] [<b>-O cnt</b>] [<b>-A</b>] [<b>-R</b>] [<b>-S</b>] [<b>-g subroutine</b>] [profile]</p> <p>dprofpp <b>-T</b> [<b>-F</b>] [<b>-g subroutine</b>] [profile]</p> <p>dprofpp <b>-t</b> [<b>-F</b>] [<b>-g subroutine</b>] [profile]</p> <p>dprofpp <b>-p script</b> [<b>-Q</b>] [other opts]</p> <p>dprofpp <b>-V</b> [profile]</p> <h1 id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">#</a>DESCRIPTION</h1> <p>The <i>dprofpp</i> command interprets profile data produced by a profiler, such as the Devel::DProf profiler. Dprofpp will read the file <i>tmon.out</i> and will display the 15 subroutines which are using the most time. By default the times for each subroutine are given exclusive of the times of their child subroutines.</p> <p>To profile a Perl script run the perl interpreter with the <b>-d</b> switch. So to profile script <i>test.pl</i> with Devel::DProf the following command should be used.</p> <pre><code class="plaintext">$ perl5 -d:DProf test.pl</code></pre> <p>Then run dprofpp to analyze the profile. The output of dprofpp depends on the flags to the program and the version of Perl you're using.</p> <pre><code>$ dprofpp -u Total Elapsed Time = 1.67 Seconds User Time = 0.61 Seconds Exclusive Times %Time Seconds #Calls sec/call Name 52.4 0.320 2 0.1600 main::foo 45.9 0.280 200 0.0014 main::bar 0.00 0.000 1 0.0000 DynaLoader::import 0.00 0.000 1 0.0000 main::baz</code></pre> <p>The dprofpp tool can also run the profiler before analyzing the profile data. The above two commands can be executed with one dprofpp command.</p> <pre><code class="plaintext">$ dprofpp -u -p test.pl</code></pre> <p>Consult <a href="/5.6.2/Devel::DProf#PROFILE-FORMAT">"PROFILE FORMAT" in Devel::DProf</a> for a description of the raw profile.</p> <h1 id="OUTPUT"><a class="permalink" href="#OUTPUT">#</a>OUTPUT</h1> <p>Columns are:</p> <dl> <dt id="%Time"><a class="permalink" href="#%25Time">#</a><a id="Time"></a>%Time</dt> <dd> <p>Percentage of time spent in this routine.</p> </dd> <dt id="#Calls"><a class="permalink" href="#%23Calls">#</a><a id="Calls"></a>#Calls</dt> <dd> <p>Number of calls to this routine.</p> </dd> <dt id="sec/call"><a class="permalink" href="#sec/call">#</a><a id="sec"></a><a id="sec-call"></a>sec/call</dt> <dd> <p>Average number of seconds per call to this routine.</p> </dd> <dt id="Name"><a class="permalink" href="#Name">#</a>Name</dt> <dd> <p>Name of routine.</p> </dd> <dt id="CumulS"><a class="permalink" href="#CumulS">#</a>CumulS</dt> <dd> <p>Time (in seconds) spent in this routine and routines called from it.</p> </dd> <dt id="ExclSec"><a class="permalink" href="#ExclSec">#</a>ExclSec</dt> <dd> <p>Time (in seconds) spent in this routine (not including those called from it).</p> </dd> <dt id="Csec/c"><a class="permalink" href="#Csec/c">#</a><a id="Csec"></a><a id="Csec-c"></a>Csec/c</dt> <dd> <p>Average time (in seconds) spent in each call of this routine (including those called from it).</p> </dd> </dl> <h1 id="OPTIONS"><a class="permalink" href="#OPTIONS">#</a>OPTIONS</h1> <dl> <dt id="-a"><a class="permalink" href="#-a">#</a><a id="a"></a><b>-a</b></dt> <dd> <p>Sort alphabetically by subroutine names.</p> </dd> <dt id="-A"><a class="permalink" href="#-A">#</a><a id="A"></a><b>-A</b></dt> <dd> <p>Count timing for autoloaded subroutine as timing for <code>*::AUTOLOAD</code>. Otherwise the time to autoload it is counted as time of the subroutine itself (there is no way to separate autoload time from run time).</p> <p>This is going to be irrelevant with newer Perls. They will inform <code>Devel::DProf</code> <i>when</i> the <code>AUTOLOAD</code> switches to actual subroutine, so a separate statistics for <code>AUTOLOAD</code> will be collected no matter whether this option is set.</p> </dd> <dt id="-R"><a class="permalink" href="#-R">#</a><a id="R"></a><b>-R</b></dt> <dd> <p>Count anonymous subroutines defined in the same package separately.</p> </dd> <dt id="-E"><a class="permalink" href="#-E">#</a><a id="E"></a><b>-E</b></dt> <dd> <p>(default) Display all subroutine times exclusive of child subroutine times.</p> </dd> <dt id="-F"><a class="permalink" href="#-F">#</a><a id="F"></a><b>-F</b></dt> <dd> <p>Force the generation of fake exit timestamps if dprofpp reports that the profile is garbled. This is only useful if dprofpp determines that the profile is garbled due to missing exit timestamps. You're on your own if you do this. Consult the BUGS section.</p> </dd> <dt id="-I"><a class="permalink" href="#-I">#</a><a id="I"></a><b>-I</b></dt> <dd> <p>Display all subroutine times inclusive of child subroutine times.</p> </dd> <dt id="-l"><a class="permalink" href="#-l">#</a><a id="l"></a><b>-l</b></dt> <dd> <p>Sort by number of calls to the subroutines. This may help identify candidates for inlining.</p> </dd> <dt id="-O-cnt"><a class="permalink" href="#-O-cnt">#</a><a id="O-cnt"></a><b>-O cnt</b></dt> <dd> <p>Show only <i>cnt</i> subroutines. The default is 15.</p> </dd> <dt id="-p-script"><a class="permalink" href="#-p-script">#</a><a id="p-script"></a><b>-p script</b></dt> <dd> <p>Tells dprofpp that it should profile the given script and then interpret its profile data. See <b>-Q</b>.</p> </dd> <dt id="-Q"><a class="permalink" href="#-Q">#</a><a id="Q"></a><b>-Q</b></dt> <dd> <p>Used with <b>-p</b> to tell dprofpp to quit after profiling the script, without interpreting the data.</p> </dd> <dt id="-q"><a class="permalink" href="#-q">#</a><a id="q"></a><b>-q</b></dt> <dd> <p>Do not display column headers.</p> </dd> <dt id="-r"><a class="permalink" href="#-r">#</a><a id="r"></a><b>-r</b></dt> <dd> <p>Display elapsed real times rather than user+system times.</p> </dd> <dt id="-s"><a class="permalink" href="#-s">#</a><a id="s"></a><b>-s</b></dt> <dd> <p>Display system times rather than user+system times.</p> </dd> <dt id="-T"><a class="permalink" href="#-T">#</a><a id="T"></a><b>-T</b></dt> <dd> <p>Display subroutine call tree to stdout. Subroutine statistics are not displayed.</p> </dd> <dt id="-t"><a class="permalink" href="#-t">#</a><a id="t"></a><b>-t</b></dt> <dd> <p>Display subroutine call tree to stdout. Subroutine statistics are not displayed. When a function is called multiple consecutive times at the same calling level then it is displayed once with a repeat count.</p> </dd> <dt id="-S"><a class="permalink" href="#-S">#</a><a id="S"></a><b>-S</b></dt> <dd> <p>Display <i>merged</i> subroutine call tree to stdout. Statistics is displayed for each branch of the tree.</p> <p>When a function is called multiple (<i>not necessarily consecutive</i>) times in the same branch then all these calls go into one branch of the next level. A repeat count is output together with combined inclusive, exclusive and kids time.</p> <p>Branches are sorted w.r.t. inclusive time.</p> </dd> <dt id="-U"><a class="permalink" href="#-U">#</a><a id="U"></a><b>-U</b></dt> <dd> <p>Do not sort. Display in the order found in the raw profile.</p> </dd> <dt id="-u"><a class="permalink" href="#-u">#</a><a id="u"></a><b>-u</b></dt> <dd> <p>Display user times rather than user+system times.</p> </dd> <dt id="-V"><a class="permalink" href="#-V">#</a><a id="V"></a><b>-V</b></dt> <dd> <p>Print dprofpp's version number and exit. If a raw profile is found then its XS_VERSION variable will be displayed, too.</p> </dd> <dt id="-v"><a class="permalink" href="#-v">#</a><a id="v"></a><b>-v</b></dt> <dd> <p>Sort by average time spent in subroutines during each call. This may help identify candidates for inlining.</p> </dd> <dt id="-z"><a class="permalink" href="#-z">#</a><a id="z"></a><b>-z</b></dt> <dd> <p>(default) Sort by amount of user+system time used. The first few lines should show you which subroutines are using the most time.</p> </dd> <dt id="-g-subroutine"><a class="permalink" href="#-g-subroutine">#</a><a id="g-subroutine"></a><b>-g</b> <code>subroutine</code></dt> <dd> <p>Ignore subroutines except <code>subroutine</code> and whatever is called from it.</p> </dd> </dl> <h1 id="ENVIRONMENT"><a class="permalink" href="#ENVIRONMENT">#</a>ENVIRONMENT</h1> <p>The environment variable <b>DPROFPP_OPTS</b> can be set to a string containing options for dprofpp. You might use this if you prefer <b>-I</b> over <b>-E</b> or if you want <b>-F</b> on all the time.</p> <p>This was added fairly lazily, so there are some undesirable side effects. Options on the commandline should override options in DPROFPP_OPTS--but don't count on that in this version.</p> <h1 id="BUGS"><a class="permalink" href="#BUGS">#</a>BUGS</h1> <p>Applications which call _exit() or exec() from within a subroutine will leave an incomplete profile. See the <b>-F</b> option.</p> <p>Any bugs in Devel::DProf, or any profiler generating the profile data, could be visible here. See <a href="/5.6.2/Devel::DProf#BUGS">"BUGS" in Devel::DProf</a>.</p> <p>Mail bug reports and feature requests to the perl5-porters mailing list at <i><perl5-porters@perl.org></i>. Bug reports should include the output of the <b>-V</b> option.</p> <h1 id="FILES"><a class="permalink" href="#FILES">#</a>FILES</h1> <pre><code class="plaintext">dprofpp - profile processor tmon.out - raw profile</code></pre> <h1 id="SEE-ALSO"><a class="permalink" href="#SEE-ALSO">#</a><a id="SEE"></a>SEE ALSO</h1> <p><a href="/5.6.2/perl">perl</a>, <a href="/5.6.2/Devel::DProf">Devel::DProf</a>, times(2)</p> </div> <div id="footer"> <p>Perldoc Browser is maintained by Dan Book (<a href="https://metacpan.org/author/DBOOK">DBOOK</a>). Please contact him via the <a href="https://github.com/Grinnz/perldoc-browser/issues">GitHub issue tracker</a> or <a href="mailto:dbook@cpan.org">email</a> regarding any issues with the site itself, search, or rendering of documentation.</p> <p>The Perl documentation is maintained by the Perl 5 Porters in the development of Perl. Please contact them via the <a href="https://github.com/Perl/perl5/issues">Perl issue tracker</a>, the <a href="https://lists.perl.org/list/perl5-porters.html">mailing list</a>, or <a href="https://kiwiirc.com/client/irc.perl.org/p5p">IRC</a> to report any issues with the contents or format of the documentation.</p> </div> </div> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.slim.min.js" integrity="sha512-/DXTXr6nQodMUiq+IUJYCt2PPOUjrHJ9wFrqpJ3XkgPNOZVfMok7cRw6CSxyCQxXn6ozlESsSh1/sMCTF1rL/g==" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.1/umd/popper.min.js" integrity="sha512-ubuT8Z88WxezgSqf3RLuNi5lmjstiJcyezx34yIU2gAHonIi27Na7atqzUZCOoY4CExaoFumzOsFQ2Ch+I/HCw==" crossorigin="anonymous"></script> <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script> <script src="/js/highlight.pack.js"></script> <script>hljs.highlightAll();</script> </body> </html>