<?xml version="1.0" encoding="utf-8" ?> <!-- for emacs: -*- coding: utf-8 -*- --> <!-- Apache may like this line in the file .htaccess: AddCharset utf-8 .html --> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg-flat.dtd" > <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head><title>benchmark -- accurate timing of execution</title> <link rel="stylesheet" type="text/css" href="../../../../Macaulay2/Style/doc.css"/> </head> <body> <table class="buttons"> <tr> <td><div><a href="___Bessel__J.html">next</a> | <a href="___Before__Print.html">previous</a> | <a href="___Bessel__J.html">forward</a> | <a href="___Before__Print.html">backward</a> | up | <a href="index.html">top</a> | <a href="master.html">index</a> | <a href="toc.html">toc</a> | <a href="http://www.math.uiuc.edu/Macaulay2/">Macaulay2 web site</a></div> </td> </tr> </table> <hr/> <div><h1>benchmark -- accurate timing of execution</h1> <div class="single"><h2>Synopsis</h2> <ul><li><div class="list"><dl class="element"><dt class="heading">Usage: </dt><dd class="value"><div><tt>benchmark s</tt></div> </dd></dl> </div> </li> <li><div class="single">Inputs:<ul><li><span><tt>s</tt>, <span>a <a href="___String.html">string</a></span>, a string containing Macaulay2 code</span></li> </ul> </div> </li> <li><div class="single">Outputs:<ul><li><span><span>a <a href="___R__R.html">real number</a></span>, the number of seconds it takes to evaluate the code in <tt>s</tt></span></li> </ul> </div> </li> </ul> </div> <div class="single"><h2>Description</h2> <div>Produces an accurate timing for the code contained in the string <tt>s</tt>. The value returned is the number of seconds.<table class="examples"><tr><td><pre>i1 : benchmark "sqrt 2p3000000" o1 = .45893025 o1 : RR (of precision 27)</pre> </td></tr> </table> The snippet of code provided will be run enough times to register meaningfully on the clock, and the garbage collector will be called beforehand.</div> </div> </div> </body> </html>