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| <title>threadpool - Apache HTTP Server</title> |
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| <p class="apache">Apache HTTP Server Version 2.0</p> |
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| <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> > <a href="./">Modules</a></div> |
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| <div class="retired"><h4>Please note</h4> |
| <p>This document refers to the <strong>2.0</strong> version of Apache httpd, which <strong>is no longer maintained</strong>. Upgrade, and refer to the current version of httpd instead, documented at:</p> |
| <ul><li><a href="http://httpd.apache.org/docs/current/">Current release version of Apache HTTP Server documentation</a></li></ul><p>You may follow <a href="http://httpd.apache.org/docs/current/mod/threadpool.html">this link</a> to go to the current version of this document.</p></div><div id="preamble"><h1>Apache MPM threadpool</h1> |
| <div class="toplang"> |
| <p><span>Available Languages: </span><a href="../en/mod/threadpool.html" title="English"> en </a></p> |
| </div> |
| <table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Yet another experimental variant of the standard |
| <code class="module"><a href="../mod/worker.html">worker</a></code> MPM</td></tr> |
| <tr><th><a href="module-dict.html#Status">Status:</a></th><td>MPM</td></tr> |
| <tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>mpm_threadpool_module</td></tr> |
| <tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>threadpool.c</td></tr></table> |
| <h3>Summary</h3> |
| |
| <div class="warning"><h3>Warning</h3> |
| <p>This MPM is a developer playground and highly experimental, so it |
| may or may not work as expected.</p> |
| </div> |
| |
| <p>This is an experimental variant of the standard worker MPM. |
| Rather than queuing connections like the worker MPM, the |
| <code class="module"><a href="../mod/threadpool.html">threadpool</a></code> MPM queues idle worker threads and |
| hands each accepted connection to the next available worker.</p> |
| |
| <p>The <code class="module"><a href="../mod/threadpool.html">threadpool</a></code> MPM can't match the performance of |
| the <code class="module"><a href="../mod/worker.html">worker</a></code> MPM in benchmark testing. As of 2.0.39, |
| some of the key load-throtting concepts from the <code class="module"><a href="../mod/threadpool.html">threadpool</a></code> MPM have been incorporated into the <code class="module"><a href="../mod/worker.html">worker</a></code> MPM. The <code class="module"><a href="../mod/threadpool.html">threadpool</a></code> code is useful |
| primarily as a research platform. For general-purpose use and for any |
| production environments, use <code class="module"><a href="../mod/worker.html">worker</a></code> instead.</p> |
| </div> |
| <div id="quickview"><h3 class="directives">Directives</h3> |
| <ul id="toc"> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#acceptmutex">AcceptMutex</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#coredumpdirectory">CoreDumpDirectory</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#enableexceptionhook">EnableExceptionHook</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#group">Group</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#listen">Listen</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#listenbacklog">ListenBacklog</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#lockfile">LockFile</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#maxclients">MaxClients</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#maxmemfree">MaxMemFree</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#maxrequestsperchild">MaxRequestsPerChild</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#maxsparethreads">MaxSpareThreads</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#minsparethreads">MinSpareThreads</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#pidfile">PidFile</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#receivebuffersize">ReceiveBufferSize</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#scoreboardfile">ScoreBoardFile</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#sendbuffersize">SendBufferSize</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#serverlimit">ServerLimit</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#startservers">StartServers</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#threadlimit">ThreadLimit</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#threadsperchild">ThreadsPerChild</a></li> |
| <li><img alt="" src="../images/right.gif" /> <a href="mpm_common.html#user">User</a></li> |
| </ul> |
| </div> |
| |
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| <p><span>Available Languages: </span><a href="../en/mod/threadpool.html" title="English"> en </a></p> |
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| <p class="apache">Copyright 2013 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> |
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