<!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta name="generator" content="AsciiDoc 8.6.8"> <title>Drawbacks</title> <link rel="stylesheet" href="./asciidoc.css" type="text/css"> <link rel="stylesheet" href="./pygments.css" type="text/css"> <script type="text/javascript" src="./asciidoc.js"></script> <script type="text/javascript"> /*<![CDATA[*/ asciidoc.install(); /*]]>*/ </script> <link rel="stylesheet" href="./mlton.css" type="text/css"/> </head> <body class="article"> <div id="banner"> <div id="banner-home"> <a href="./Home">MLton 20130715</a> </div> </div> <div id="header"> <h1>Drawbacks</h1> </div> <div id="content"> <div id="preamble"> <div class="sectionbody"> <div class="paragraph"><p>MLton has several drawbacks due to its use of whole-program compilation.</p></div> <div class="ulist"><ul> <li> <p> Large compile-time memory requirement. </p> <div class="paragraph"><p>Because MLton performs whole-program analysis and optimization, compilation requires a large amount of memory. For example, compiling MLton (over 140K lines) requires at least 512M RAM.</p></div> </li> <li> <p> Long compile times. </p> <div class="paragraph"><p>Whole-program compilation can take a long time. For example, compiling MLton (over 140K lines) on a 1.6GHz machine takes five to ten minutes.</p></div> </li> <li> <p> No interactive top level. </p> <div class="paragraph"><p>Because of whole-program compilation, MLton does not provide an interactive top level. In particular, it does not implement the optional <a href="BasisLibrary">Basis Library</a> function <span class="monospaced">use</span>.</p></div> </li> </ul></div> </div> </div> </div> <div id="footnotes"><hr></div> <div id="footer"> <div id="footer-text"> </div> <div id="footer-badges"> </div> </div> </body> </html>
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