MySQL编译调整优化简明指南_MySQL
一、在编译时优化MySQL
二、调整服务器
三、表类型
一、在编译时优化MySQL
如果你从源代码分发安装MySQL，要注意，编译过程对以后的目标程序性能有重要的影响，不同的编译方式可能得到类似的目标文件，但性能可能相差很大，因此，在编译安装MySQL适应仔细根据你的应用类型选择最可能好的编译选项。这种定制的MySQL可以为你的应用提供最佳性能。
技巧：选用较好的编译器和较好的编译器选项，这样应用可提高性能10-30%。（MySQL文档如是说）
一、在编译时优化MySQL
如果你从源代码分发安装MySQL，要注意，编译过程对以后的目标程序性能有重要的影响，不同的编译方式可能得到类似的目标文件，但性能可能相差很大，因此，在编译安装MySQL适应仔细根据你的应用类型选择最可能好的编译选项。这种定制的MySQL可以为你的应用提供最佳性能。
技巧：选用较好的编译器和较好的编译器选项，这样应用可提高性能10-30%。（MySQL文档如是说）
1.1、使用pgcc（Pentium GCC)编译器
该编译器（http://www.goof.com/pcg/）针对运行在奔腾处理器系统上的程序进行优化，用pgcc编译MySQL源代码，总体性能可提高10%。当然如果你的服务器不是用奔腾处理器，就不必用它了，因为它是专为奔腾系统设计的。
1.2、仅使用你想使用的字符集编译MySQL
MySQL目前提供多达24种不同的字符集，为全球用户以他们自己的语言插入或查看表中的数据。却省情况下，MySQL安装所有者这些字符集，热然而，最好的选择是指选择一种你需要的。如，禁止除Latin1字符集以外的所有其它字符集：
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%>./configure -with-extra-charsets=none [--other-configuration-options]
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1.3、将mysqld编译成静态执行文件
将mysqld编译成静态执行文件而无需共享库也能获得更好的性能。通过在配置时指定下列选项，可静态编译mysqld。
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%>./configure -with-mysqld-ldflags=-all-static [--other-configuration-options]
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1.4、配置样本
下列配置命令常用于提高性能：
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%>CFLAGS="-O6 -mpentiumpro -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O6 -mpentiumpro -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --enable-assembler --with-mysqld-ldflags=-all-static --disable-shared
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