mysql编译参数_MySQL
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安装MySQL 安装前确认以下包已经装好gcc gcc-c++ ncurses-devel
/usr/sbin/groupadd mysql
/usr/sbin/useradd -g mysql mysql
tar zxvf mysql-5.4.0-beta.tar.gz
cd mysql-5.4.0-beta
CFLAGS="-O6 -mpentiumpro -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O6 -mpentiumpro -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti"
./configure --prefix=/usr/local/mysql --localstatedir=/usr/local/mysql/var/ --with-server-suffix=-enterprise-gpl --without-debug --with-big-tables --with-extra-charsets=latin1,gb2312,big5,utf8,GBK --with-extra-charsets=all --with-pthread --enable-static --enable-thread-safe-client --with-client-ldflags=-all-static --with-mysqld-ldflags=-all-static --enable-assembler --without-innodb --without-ndb-debug --without-isam --with-federated-storage-engine
make && make install
cp support-files/my-medium.cnf /usr/local/mysql/my.cnf
/usr/local/mysql/bin/mysql_install_db --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --user=mysql
my.cnf文件记得注销--skip-federated引擎功能再启动mysql
./mysqld_safe --defaults-file=/usr/local/mysql/my.cnf --user=mysql &
mysql编译参数说明:根据 ./configure --help 查看支持配置的参数
-pgcc和-O6编译
CFLAGS="-O6 -mpentiumpro -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O6 -mpentiumpro -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti"
总体性能可提高10%,当然如果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
-static静态编译
--enable-static
--with-client-ldflags=-all-static
--with-mysqld-ldflags=-all-static
以静态方式编译客户端和服务端,能提高13%性能
--enable-thread-safe-client
以线程方式编译客户端
--without-innodb
去掉innodb表支持,innodb是一种支持事务处理的表,适合企业级应用
--without-isam
去掉isam表类型支持,现在很少用了,isam表是一种依赖平台的表
--without-ndb-debug
取消导航调试
--localstatedir=/usr/local/mysql/var/
日志文件目录
--with-server-suffix=-enterprise-gpl
给MySQL加个后缀名,在用mysql登录的时候在版本号的后面可以看到
--without-debug
去除诊断模式,如果用--with-debug=full编译,大多数查询慢20%
--with-big-tables
大表支持
--with-extra-charsers=gbk,gb2312,utf8
设置支持gbk,gb2312,utf8字符集
--with-pthread
强制使用pthread库(posix线程库)
--enable-assembler
使用一些字符函数来汇编版本
--with-federated-storage-engine
这个参数已经被废除,代替它的是--with-plugin系列
cp support-files/my-medium.cnf /usr/local/mysql/my.cnf
mysql/support-files里面有配置文件范本,根据实际情况选择或者更改
/usr/local/mysql/bin/mysql_install_db --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --user=mysql --defaults-file=/usr/local/mysql/my.cnf --pid-file=/usr/local/mysql/mysql.pid
设定默认值:默认空间路径;默认数据文件路径;默认用户;默认配置文件路径;默认PID文件路径。
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本脚步未加入的编译参数:
--with-charset=utf8
设置默认字符集
--with-unix-socket-path=/usr/local/mysql/tmp/mysql.sock
使用unix套接字链接提高7.5%性能,所以在windows下mysql性能肯定不如 unix
--with-tcp-port=3306
指定MySQL实例将监听TCP 3306端口
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