1 <html> 2 <head> 3 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> 4 <title>14.Nulgrind: the minimal Valgrind tool</title> 5 <link rel="stylesheet" type="text/css" href="vg_basic.css"> 6 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7 <link rel="home" href="index.html" title="Valgrind Documentation"> 8 <link rel="up" href="manual.html" title="Valgrind User Manual"> 9 <link rel="prev" href="lk-manual.html" title="13.Lackey: an example tool"> 10 <link rel="next" href="FAQ.html" title="Valgrind FAQ"> 11 </head> 12 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13 <div><table class="nav" width="100%" cellspacing="3" cellpadding="3" border="0" summary="Navigation header"><tr> 14 <td width="22px" align="center" valign="middle"><a accesskey="p" href="lk-manual.html"><img src="images/prev.png" width="18" height="21" border="0" alt="Prev"></a></td> 15 <td width="25px" align="center" valign="middle"><a accesskey="u" href="manual.html"><img src="images/up.png" width="21" height="18" border="0" alt="Up"></a></td> 16 <td width="31px" align="center" valign="middle"><a accesskey="h" href="index.html"><img src="images/home.png" width="27" height="20" border="0" alt="Up"></a></td> 17 <th align="center" valign="middle">Valgrind User Manual</th> 18 <td width="22px" align="center" valign="middle"><a accesskey="n" href="FAQ.html"><img src="images/next.png" width="18" height="21" border="0" alt="Next"></a></td> 19 </tr></table></div> 20 <div class="chapter"> 21 <div class="titlepage"><div><div><h1 class="title"> 22 <a name="nl-manual"></a>14.Nulgrind: the minimal Valgrind tool</h1></div></div></div> 23 <div class="toc"> 24 <p><b>Table of Contents</b></p> 25 <dl class="toc"><dt><span class="sect1"><a href="nl-manual.html#ms-manual.overview">14.1. Overview</a></span></dt></dl> 26 </div> 27 <p>To use this tool, you must specify 28 <code class="option">--tool=none</code> on the Valgrind 29 command line.</p> 30 <div class="sect1"> 31 <div class="titlepage"><div><div><h2 class="title" style="clear: both"> 32 <a name="ms-manual.overview"></a>14.1.Overview</h2></div></div></div> 33 <p>Nulgrind is the simplest possible Valgrind tool. It performs no 34 instrumentation or analysis of a program, just runs it normally. It is 35 mainly of use for Valgrind's developers for debugging and regression 36 testing.</p> 37 <p>Nonetheless you can run programs with Nulgrind. They will run 38 roughly 5 times more slowly than normal, for no useful effect. Note 39 that you need to use the option <code class="option">--tool=none</code> to run 40 Nulgrind (ie. not <code class="option">--tool=nulgrind</code>).</p> 41 </div> 42 </div> 43 <div> 44 <br><table class="nav" width="100%" cellspacing="3" cellpadding="2" border="0" summary="Navigation footer"> 45 <tr> 46 <td rowspan="2" width="40%" align="left"> 47 <a accesskey="p" href="lk-manual.html"><<13.Lackey: an example tool</a></td> 48 <td width="20%" align="center"><a accesskey="u" href="manual.html">Up</a></td> 49 <td rowspan="2" width="40%" align="right"><a accesskey="n" href="FAQ.html">Valgrind FAQ>></a> 50 </td> 51 </tr> 52 <tr><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td></tr> 53 </table> 54 </div> 55 </body> 56 </html> 57
