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<title><![CDATA[优化的内存访问 TCMalloc]]></title> 
<author>jed &lt;jed521@163.com&gt;</author>
<category><![CDATA[数据库技术]]></category>
<pubDate>Sun, 01 Apr 2012 05:29:54 +0000</pubDate> 
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	TCMalloc (google-perftools) 是用于优化C++写的多线程应用，比glibc 2.3的malloc快。这个模块可以用来让MySQL在高并发下内存占用更加稳定。<br/><br/>本站使用的MySQL已经用 TCMalloc 优化过了。<br/><br/>详细的安装步骤：<br/><div class="code"><br/>#tar zxvf libunwind-0.98.6.tar.gz<br/>#cd libunwind-0.98.6<br/>#./configure<br/>#make<br/>#make install<br/><br/>#tar zxvf google-perftools-0.94.1.tar.gz<br/>#cd google*<br/>#./configure<br/>#make<br/>#make install<br/></div><br/>打开 mysqld_safe 脚本 (默认在/usr/bin/mysqld_safe)<br/>在此脚本文件开始加入<br/><div class="code"><br/>LD_PRELOAD=&quot;/usr/local/lib/libtcmalloc.so&quot;<br/></div><br/><div class="code"><br/>#service mysql restart<br/></div><br/><br/>Tags - <a href="http://www.dzhope.com/tags/mysql/" rel="tag">mysql</a> , <a href="http://www.dzhope.com/tags/mysql%25E4%25BC%2598%25E5%258C%2596/" rel="tag">mysql优化</a>
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<pubDate>Thu, 01 Jan 1970 00:00:00 +0000</pubDate> 
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