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| author |   hongbotian <hongbo.tianhongbo@huawei.com> | 2015-11-30 01:35:09 -0500 |
|---|---|---|
| committer | hongbotian <hongbo.tianhongbo@huawei.com> | 2015-11-30 01:36:35 -0500 |
| commit | cc40af334e619bb549038238507407866f774f8f (patch) | |
| tree | 43ddc1974f72997a57173151eafb23e6025a13c9 /rubbos/app/apache2/manual/mpm.html.en | |
| parent | 68e74fd78b2485e5914ce34a5b30f4485029e021 (diff) | |
upload apache
JIRA: BOTTLENECK-10
Change-Id: I67eae31de6dc824097dfa56ab454ba36fdd23a2c
Signed-off-by: hongbotian <hongbo.tianhongbo@huawei.com>
Diffstat (limited to 'rubbos/app/apache2/manual/mpm.html.en')
| -rw-r--r-- | rubbos/app/apache2/manual/mpm.html.en | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/rubbos/app/apache2/manual/mpm.html.en b/rubbos/app/apache2/manual/mpm.html.en new file mode 100644 index 00000000..012906f1 --- /dev/null +++ b/rubbos/app/apache2/manual/mpm.html.en @@ -0,0 +1,132 @@ +<?xml version="1.0" encoding="ISO-8859-1"?> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!-- + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + This file is generated from xml source: DO NOT EDIT + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + --> +<title>Multi-Processing Modules (MPMs) - Apache HTTP Server</title> +<link href="./style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /> +<link href="./style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /> +<link href="./style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /> +<link href="./images/favicon.ico" rel="shortcut icon" /></head> +<body id="manual-page"><div id="page-header"> +<p class="menu"><a href="./mod/">Modules</a> | <a href="./mod/directives.html">Directives</a> | <a href="./faq/">FAQ</a> | <a href="./glossary.html">Glossary</a> | <a href="./sitemap.html">Sitemap</a></p> +<p class="apache">Apache HTTP Server Version 2.0</p> +<img alt="" src="./images/feather.gif" /></div> +<div class="up"><a href="./"><img title="<-" alt="<-" src="./images/left.gif" /></a></div> +<div id="path"> +<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="./">Version 2.0</a></div><div id="page-content"><div id="preamble"><h1>Multi-Processing Modules (MPMs)</h1> +<div class="toplang"> +<p><span>Available Languages: </span><a href="./de/mpm.html" hreflang="de" rel="alternate" title="Deutsch"> de </a> | +<a href="./en/mpm.html" title="English"> en </a> | +<a href="./es/mpm.html" hreflang="es" rel="alternate" title="Español"> es </a> | +<a href="./ja/mpm.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | +<a href="./ko/mpm.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> | +<a href="./ru/mpm.html" hreflang="ru" rel="alternate" title="Russian"> ru </a> | +<a href="./tr/mpm.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p> +</div> + +<p>This document describes what a Multi-Processing Module is and +how they are used by the Apache HTTP Server.</p> +</div> +<div id="quickview"><ul id="toc"><li><img alt="" src="./images/down.gif" /> <a href="#introduction">Introduction</a></li> +<li><img alt="" src="./images/down.gif" /> <a href="#choosing">Choosing an MPM</a></li> +<li><img alt="" src="./images/down.gif" /> <a href="#defaults">MPM Defaults</a></li> +</ul></div> +<div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div> +<div class="section"> +<h2><a name="introduction" id="introduction">Introduction</a></h2> + + <p>The Apache HTTP Server is designed to be a powerful and + flexible web server that can work on a very wide variety of + platforms in a range of different environments. Different + platforms and different environments often require different + features, or may have different ways of implementing the same + feature most efficiently. Apache has always accommodated a wide + variety of environments through its modular design. This design + allows the webmaster to choose which features will be included + in the server by selecting which modules to load either at + compile-time or at run-time.</p> + + <p>Apache 2.0 extends this modular design to the most basic + functions of a web server. The server ships with a selection of + Multi-Processing Modules (MPMs) which are responsible for + binding to network ports on the machine, accepting requests, + and dispatching children to handle the requests.</p> + + <p>Extending the modular design to this level of the server + allows two important benefits:</p> + + <ul> + <li>Apache can more cleanly and efficiently support a wide + variety of operating systems. In particular, the Windows + version of Apache is now much more efficient, since + <code class="module"><a href="./mod/mpm_winnt.html">mpm_winnt</a></code> can use native + networking features in place of the POSIX layer used in + Apache 1.3. This benefit also extends to other operating + systems that implement specialized MPMs.</li> + + <li>The server can be better customized for the needs of the + particular site. For example, sites that need a great deal of + scalability can choose to use a threaded MPM like + <code class="module"><a href="./mod/worker.html">worker</a></code>, while sites requiring + stability or compatibility with older software can use a + <code class="module"><a href="./mod/prefork.html">prefork</a></code>. In addition, + special features like serving different hosts under different + userids (<code class="module"><a href="./mod/perchild.html">perchild</a></code>) can be + provided.</li> + </ul> + + <p>At the user level, MPMs appear much like other Apache + modules. The main difference is that one and only one MPM must + be loaded into the server at any time. The list of available + MPMs appears on the <a href="mod/">module index page</a>.</p> + +</div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div> +<div class="section"> +<h2><a name="choosing" id="choosing">Choosing an MPM</a></h2> + + <p>MPMs must be chosen during configuration, and compiled into + the server. Compilers are capable of optimizing a lot of + functions if threads are used, but only if they know that + threads are being used.</p> + + <p>To actually choose the desired MPM, use the argument + <code>--with-mpm=<em>NAME</em></code> with the + <code class="program"><a href="./programs/configure.html">configure</a></code> script. <em>NAME</em> is the name of the + desired MPM.</p> + + <p>Once the server has been compiled, it is possible to + determine which MPM was chosen by using <code>./httpd + -l</code>. This command will list every module that is compiled + into the server, including the MPM.</p> +</div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div> +<div class="section"> +<h2><a name="defaults" id="defaults">MPM Defaults</a></h2> + +<p>The following table lists the default MPMs for various operating +systems. This will be the MPM selected if you do not make another +choice at compile-time.</p> + +<table> + +<tr><td>BeOS</td><td><code class="module"><a href="./mod/beos.html">beos</a></code></td></tr> +<tr><td>Netware</td><td><code class="module"><a href="./mod/mpm_netware.html">mpm_netware</a></code></td></tr> +<tr><td>OS/2</td><td><code class="module"><a href="./mod/mpmt_os2.html">mpmt_os2</a></code></td></tr> +<tr><td>Unix</td><td><code class="module"><a href="./mod/prefork.html">prefork</a></code></td></tr> +<tr><td>Windows</td><td><code class="module"><a href="./mod/mpm_winnt.html">mpm_winnt</a></code></td></tr> +</table> +</div></div> +<div class="bottomlang"> +<p><span>Available Languages: </span><a href="./de/mpm.html" hreflang="de" rel="alternate" title="Deutsch"> de </a> | +<a href="./en/mpm.html" title="English"> en </a> | +<a href="./es/mpm.html" hreflang="es" rel="alternate" title="Español"> es </a> | +<a href="./ja/mpm.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | +<a href="./ko/mpm.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> | +<a href="./ru/mpm.html" hreflang="ru" rel="alternate" title="Russian"> ru </a> | +<a href="./tr/mpm.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p> +</div><div id="footer"> +<p class="apache">Copyright 2009 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p> +<p class="menu"><a href="./mod/">Modules</a> | <a href="./mod/directives.html">Directives</a> | <a href="./faq/">FAQ</a> | <a href="./glossary.html">Glossary</a> | <a href="./sitemap.html">Sitemap</a></p></div> +</body></html>
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