1 <?xml version="1.0"?> <!-- -*- sgml -*- --> 2 <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" 3 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> 4 5 6 <chapter id="nl-manual" xreflabel="Nulgrind"> 7 8 <title>Nulgrind: the minimal Valgrind tool</title> 9 10 <para>To use this tool, you must specify 11 <option>--tool=none</option> on the Valgrind 12 command line.</para> 13 14 <sect1 id="ms-manual.overview" xreflabel="Overview"> 15 <title>Overview</title> 16 17 <para>Nulgrind is the simplest possible Valgrind tool. It performs no 18 instrumentation or analysis of a program, just runs it normally. It is 19 mainly of use for Valgrind's developers for debugging and regression 20 testing.</para> 21 22 <para>Nonetheless you can run programs with Nulgrind. They will run 23 roughly 5 times more slowly than normal, for no useful effect. Note 24 that you need to use the option <option>--tool=none</option> to run 25 Nulgrind (ie. not <option>--tool=nulgrind</option>).</para> 26 27 </sect1> 28 29 </chapter> 30 31
