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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>LuaJIT</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="Copyright" content="Copyright (C) 2005-2022">
<meta name="Language" content="en">
<link rel="stylesheet" type="text/css" href="bluequad.css" media="screen">
<link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print">
<meta name="description" content="LuaJIT is a Just-In-Time (JIT) compiler for the Lua language.">
<style type="text/css">
table.feature {
width: inherit;
line-height: 1.2;
margin: 0;
}
table.feature td {
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height: 40px;
vertical-align: middle;
text-align: center;
font-weight: bold;
border: 4px solid #e6ecff;
border-radius: 12px;
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table.os td {
background: #7080d0;
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background-image: -ms-linear-gradient(#4060c0 10%, #b0b0ff 95%);
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table.os1 td {
color: #ffff80;
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table.os2 td {
color: #ffa040;
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table.os3 td {
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table.cpu td {
color: #ffff00;
background: #cf7251;
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background-image: -ms-linear-gradient(#bf6241 10%, #ffb0b0 95%);
}
table.fcompat td {
color: #2060e0;
background: #61cfcf;
background-image: linear-gradient(#41bfbf 10%, #b0ffff 95%);
background-image: -moz-linear-gradient(#41bfbf 10%, #b0ffff 95%);
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background-image: -o-linear-gradient(#41bfbf 10%, #b0ffff 95%);
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table.stats td {
color: #ffffff;
background: #a0a0a0;
background-image: linear-gradient(#808080 10%, #d0d0d0 95%);
background-image: -moz-linear-gradient(#808080 10%, #d0d0d0 95%);
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table.stats td.speed {
color: #ff4020;
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table.stats td.kb {
color: #ffff80;
background: #808080;
background-image: linear-gradient(#606060 10%, #c0c0c0 95%);
background-image: -moz-linear-gradient(#606060 10%, #c0c0c0 95%);
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background-image: -ms-linear-gradient(#606060 10%, #c0c0c0 95%);
}
table.feature small {
font-size: 50%;
}
</style>
</head>
<body>
<div id="site">
<a href="https://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
</div>
<div id="head">
<h1>LuaJIT</h1>
</div>
<div id="nav">
<ul><li>
<a class="current" href="luajit.html">LuaJIT</a>
<ul><li>
<a href="https://luajit.org/download.html">Download <span class="ext">»</span></a>
</li><li>
<a href="install.html">Installation</a>
</li><li>
<a href="running.html">Running</a>
</li></ul>
</li><li>
<a href="extensions.html">Extensions</a>
<ul><li>
<a href="ext_ffi.html">FFI Library</a>
<ul><li>
<a href="ext_ffi_tutorial.html">FFI Tutorial</a>
</li><li>
<a href="ext_ffi_api.html">ffi.* API</a>
</li><li>
<a href="ext_ffi_semantics.html">FFI Semantics</a>
</li></ul>
</li><li>
<a href="ext_jit.html">jit.* Library</a>
</li><li>
<a href="ext_c_api.html">Lua/C API</a>
</li></ul>
</li><li>
<a href="status.html">Status</a>
</li><li>
<a href="faq.html">FAQ</a>
</li><li>
<a href="https://luajit.org/list.html">Mailing List <span class="ext">»</span></a>
</li></ul>
</div>
<div id="main">
<p>
LuaJIT is a <b>Just-In-Time Compiler</b> (JIT) for the
<a href="https://www.lua.org/"><span class="ext">»</span> Lua</a> programming language.
Lua is a powerful, dynamic and light-weight programming language.
It may be embedded or used as a general-purpose, stand-alone language.
</p>
<p>
LuaJIT is Copyright © 2005-2022 Mike Pall, released under the
<a href="https://www.opensource.org/licenses/mit-license.php"><span class="ext">»</span> MIT open source license</a>.
</p>
<p>
</p>
<h2>Compatibility</h2>
<table class="feature os os1">
<tr><td>Windows</td><td>Linux</td><td>BSD</td><td>macOS</td><td>POSIX</td></tr>
</table>
<table class="feature os os2">
<tr><td><span style="font-size:90%;">Embedded</span></td><td>Android</td><td>iOS</td></tr>
</table>
<table class="feature os os3">
<tr><td>PS3</td><td>PS4</td><td>PS Vita</td><td>Xbox 360</td></tr>
</table>
<table class="feature compiler">
<tr><td>GCC</td><td>CLANG<br>LLVM</td><td>MSVC</td></tr>
</table>
<table class="feature cpu">
<tr><td>x86</td><td>x64</td><td>ARM</td><td>PPC</td><td>e500</td><td>MIPS</td></tr>
</table>
<table class="feature fcompat">
<tr><td>Lua 5.1<br>API+ABI</td><td>+ JIT</td><td>+ BitOp</td><td>+ FFI</td><td>Drop-in<br>DLL/.so</td></tr>
</table>
<h2>Overview</h2>
<table class="feature stats">
<tr>
<td class="speed">3x<br>- 100x</td>
<td class="kb">115 <small>KB</small><br>VM</td>
<td class="kb">90 <small>KB</small><br>JIT</td>
<td class="kloc">63 <small>KLOC</small><br>C</td>
<td class="kloc">24 <small>KLOC</small><br>ASM</td>
<td class="kloc">11 <small>KLOC</small><br>Lua</td>
</tr>
</table>
<p style="margin-top: 1em;">
LuaJIT has been successfully used as a <b>scripting middleware</b> in
games, appliances, network and graphics apps, numerical simulations,
trading platforms and many other specialty applications. It scales from
embedded devices, smartphones, desktops up to server farms. It combines
high flexibility with high performance
and an unmatched <b>low memory footprint</b>.
</p>
<p>
LuaJIT has been in continuous development since 2005. It's widely
considered to be <b>one of the fastest dynamic language
implementations</b>. It has outperformed other dynamic languages on many
cross-language benchmarks since its first release — often by a
substantial margin.
</p>
<p>
For <b>LuaJIT 2.0</b>, the whole VM has been rewritten from the ground up
and relentlessly optimized for performance. It combines a <b>high-speed
interpreter</b>, written in assembler, with a <b>state-of-the-art JIT
compiler</b>.
</p>
<p>
An innovative <b>trace compiler</b> is integrated with advanced,
SSA-based optimizations and highly tuned code generation backends.
A substantial reduction of the overhead associated with dynamic languages
allows it to break into the performance range traditionally reserved for
offline, static language compilers.
</p>
<h2>More ...</h2>
<p>
Please select a sub-topic in the navigation bar to learn more about LuaJIT.
</p>
<br class="flush">
</div>
<div id="foot">
<hr class="hide">
Copyright © 2005-2022
<span class="noprint">
·
<a href="contact.html">Contact</a>
</span>
</div>
</body>
</html>
|
