关于apache的优化配置

　　　　　apache的默认工作模式是event.c ,查看其工作模式是在apache安装目录的bin下面进行如下命令：

　　　　　　./apachectl -l　显示如下：

　　　　　　Compiled in modules:

　　　　　　 core.c

　　　　　　 mod_so.c

　　　　　　http_core.c

　　　　　　　event.c

其默认是event.c,另在conf目录下的extra目录运行以命令：

　　　　　　vi httpd-mpm.conf　查看其模式配置：

　　　　　　　# prefork MPM

# StartServers: number of server processes to start

# MinSpareServers: minimum number of server processes which are kept spare

# MaxSpareServers: maximum number of server processes which are kept spare

# MaxRequestWorkers: maximum number of server processes allowed to start

# MaxConnectionsPerChild: maximum number of connections a server process serves

# before terminating

<IfModule mpm_prefork_module>

StartServers 5

MinSpareServers 5

MaxSpareServers 10

MaxRequestWorkers 250

MaxConnectionsPerChild 0

</IfModule>

# worker MPM

# StartServers: initial number of server processes to start

# MinSpareThreads: minimum number of worker threads which are kept spare

# MaxSpareThreads: maximum number of worker threads which are kept spare

# ThreadsPerChild: constant number of worker threads in each server process

# MaxRequestWorkers: maximum number of worker threads

# MaxConnectionsPerChild: maximum number of connections a server process serves

# before terminating

<IfModule mpm_worker_module>

StartServers 3

MinSpareThreads 75

MaxSpareThreads 250

ThreadsPerChild 25

MaxRequestWorkers 400

MaxConnectionsPerChild 0

</IfModule>

　　由于上面默认是event.c的模式，因此需要到源文件下面make clen,删除掉apche目录重新安装，执行以下命令：

　　./configure --prefix=/usr/local/apache --enable-module=all --with-apr=/usr/local/apr-1.4.6 --with-apr-util=/usr/local/apr-util-1.5.1 --with-pcre=/usr/local/pcre-8.32/ --with-included-apr --with-mpm=worker --enable-cache-disk
--enable-file-cache --enable-so

　　　此处需要将with-included-apr加上，不然加载模块会出错，另外要将需要把apr和apr-util的源文件copy到httpd的源文件的目录srclib下面

　　　cp -r apr-1.4.6 httpd-2.4.3/srclib/apr

　　　cp -r apr-util-1.5.1 httpd-2.4.3/srclib/apr-util