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tune_transparent_huge_pages.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<title>WiredTiger: Linux transparent huge pages</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
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 <span id="projectnumber">Version 2.8.0</span>
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<a href="https://github.com/wiredtiger/wiredtiger">Fork me on GitHub</a>
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<div class="title">Linux transparent huge pages </div> </div>
</div><!--header-->
<div class="contents">
<div class="textblock"><p>The performance of WiredTiger applications can be adversely affected when transparent huge pages are enabled on Linux systems. Some Linux systems enable transparent huge pages by default. See the RedHat Enterprise Linux system documentation's <a href="https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Performance_Tuning_Guide/s-memory-transhuge.html">Huge Pages and Transparent Huge Pages</a> for more information.</p>
<p>To disable transparent huge pages run the following command as the root user:</p>
<div class="fragment"><div class="line">echo never > /sys/kernel/mm/transparent_hugepage/enabled</div>
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</div><!-- doc-content -->
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<li class="navelem"><a class="el" href="index.html">Reference Guide</a></li><li class="navelem"><a class="el" href="programming_lang_java.html">Writing WiredTiger applications in Java</a></li>
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