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LAMP 编译安装

案例(一)LAMP apache、php(为apahce的模块)、mysql在同一台主机上编译安装

编译版本:  
    httpd-2.4.9    
    mariadb-5.5.36    
    PHP-5.4.26    
一、httpd编译安装和虚拟主机的配置    
httpd-2.4编译步骤:    
    1、安装编译适用于httpd-2.4的apr    
        # rpm -qa |grep apr-------检查当前主机的apr版本信息    
        #yum check-update    
        下载包    
        lftp 172.16.0.1:/pub/Sources/sources/httpd> mget apr-1.5.0.tar.bz2  apr-util-1.5.3.tar.bz2 httpd-2.4.9.tar.bz2    
        (1)编译安装apr    
            # tar xf apr-1.5.0.tar.bz2 ----------解压包    
            #cd apr-1.5.0------------到这个目录下    
            # ./configure --prefix=/usr/local/apr-----检查编译环境(指定一个目录因为原来的2.2安装在了/usr/local下,所以我们指定了个安装路径)    
            #make && make install ------------------编译安装    
            # ls /usr/local/apr------------查看安装结果    
            bin  build-1  include  lib    
            [root@ning apr]# ls lib    
            apr.exp     libapr-1.la  libapr-1.so.0      pkgconfig    
            libapr-1.a  libapr-1.so  libapr-1.so.0.5.0-------1.5.0库文件    
        (2)编译安装apr-util    
            # tar xf apr-util-1.5.3.tar.bz2 ---------解压包    
            # cd apr-util-1.5.3    
            # ./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr/----检查编译环境    
                命令解释:--prefix-----指定apr-util的安装路径    
                         --with-apr-----指定apr的安装目录(由于apr-util是apr的插件应用,所以必须的指明安装路径)    
            #make && make install ------------------编译安装    
    2、安装编译apache    
            # tar xf httpd-2.4.9.tar.bz2 ------解压包    
            # cd httpd-2.4.9    
            # ./configure --prefix=/usr/local/apache --sysconfdir=/etc/httpd --enable-so --enable-ssl --enable-cgi --enable-rewrite --with-zlib --with-pcre --with-apr=/usr/local/apr --with-apr-util=/usr/local/apr-util -enable-mpms-shared=all --with-mpm=event --enable-modules=most    
            命令解释:    
                --prefix=/usr/local/apache-----指定安装目录    
                --sysconfdir=/etc/httpd-----指定配置文件    
                --enable-so------------------是否支持DSO的机制    
                --enable-ssl---------------开启openssl功能(必须有这个包没有安装上openssl-devel-1.0.1e-15.el6.x86_64)    
                --enable-cgi--------安装cgi,安装了默认是启用状态    
                --enable-rewrite-----支持url重写(就是比如说用户访问的是:http://www.ning.com,可以指定为https://www.ning.com)网站的迁移的时候可用    
                --with-zlib--------支持压缩(压缩库)    
                --with-pcre----这是支持重写的插件(必须安装# yum -y install pcre-devel)    
                --with-apr=/usr/local/apr-----指定apr路径    
                --with-apr-util=/usr/local/apr-util------指定apr-util    
                -enable-mpms-shared=all-------把所有的编译模块都编辑过来,并编程成共享模块    
                --with-mpm=event -------指定mpm模块    
                --enable-modules=most|all----(most的是安装大多数常用模块;all是安装全部模块)    
                #make && make install------编译安装    
    3、启动apache服务    
            (1)因为没有启动脚本只能用apachectl来启动服务    
                    # ls /usr/local/apache/bin/    
                    ab         checkgid   envvars-std   htdbm     httpd       rotatelogs    
                    apachectl  dbmmanage  fcgistarter   htdigest  httxt2dbm    
                    apxs       envvars    htcacheclean  htpasswd  logresolve    
            (2)加入到搜索变量中来    
                #vim /etc/profile.d/httpd24.sh    
                export PATH=/usr/local/apache/bin:$PATH    
                #source /etc/profile.d/httpd24.sh    
                #apachectl start-----启动服务    
    4、测试就可以了。    
    5、编译安装注意:    
                把所有的文件都安装在/usr/local/apache目录下    
            [root@ning apache]# ls    
            bin  build  cgi-bin  error  htdocs  icons  include  logs  man  manual  modules    
                bin---各种二进制程序的目录    
                cgi-bin----cgi脚本存放位置    
                icons-----图标文件    
                include-----头文件和开放任意相关(ln -sv /usr/local/apache/include/ /usr/include/httpd24)    
                error------一些错误的页面文件(客户端访问的提示信息,,403报错信息)    
                logs------所有的日志文件和pid文件    
                man----帮助文件(vim /etc/man.config中添加 MANPATH /usr/local/apache/man )就可以了#man httpd    
                manual-------手册    
                modules----模块    
                网页文件存放的位置是在:/usr/local/apache/htdocs------安装在htdocs目录下    
        6、配置文件:    
            [root@ning httpd24]# ls /etc/httpd24    
            extra  httpd.conf  magic  mime.types  original-----主配置文件httpd.conf是调用extra的配置文件,()    
            [root@ning httpd24]# ls extra/----------查看extra    
            httpd-autoindex.conf  httpd-languages.conf           httpd-ssl.conf    
            httpd-dav.conf        httpd-manual.conf              httpd-userdir.conf    
            httpd-default.conf    httpd-mpm.conf                 httpd-vhosts.conf    
            httpd-info.conf       httpd-multilang-errordoc.conf  proxy-html.conf    
            修改mpm    
            #vim /etc/httpd24/httpd.conf中修改模块加载信息把event修改成prefork    
            LoadModule mpm_event_module modules/mod_mpm_event.so修改成LoadModule mpm_prefork_module modules/mod_mpm_prefork.so    
            修改后测试下    
             /usr/local/apache/bin/httpd -t    
            启用mpm修改配置信息    
            #vim /etc/httpd24/httpd.conf    
            Include /etc/httpd24/extra/httpd-mpm.conf----去掉注释即可    
            #vim /etc/httpd24/extra/httpd-mpm.conf    
    7、服务脚本:其实复制修改路径即可。。    
            [root@ning init.d]# cat /etc/rc.d/init.d/httpd24    
#!/bin/bash    
#    
# httpd        Startup script for the Apache HTTP Server    
#    
# chkconfig: - 85 15    
# description: Apache is a World Wide Web server.  It is used to serve \    
#        HTML files and CGI.    
# processname: httpd    
# config: /etc/httpd/conf/httpd.conf    
# config: /etc/sysconfig/httpd    
# pidfile: /var/run/httpd.pid

# Source function library.  
. /etc/rc.d/init.d/functions

if [ -f /etc/sysconfig/httpd ]; then  
        . /etc/sysconfig/httpd    
fi

# Start httpd in the C locale by default.  
HTTPD_LANG=${HTTPD_LANG-"C"}

# This will prevent initlog from swallowing up a pass-phrase prompt if  
# mod_ssl needs a pass-phrase from the user.    
INITLOG_ARGS=""

# Set HTTPD=/usr/sbin/httpd.worker in /etc/sysconfig/httpd to use a server  
# with the thread-based "worker" MPM; BE WARNED that some modules may not    
# work correctly with a thread-based MPM; notably PHP will refuse to start.

# Path to the apachectl script, server binary, and short-form for messages.  
apachectl=/usr/local/apache/bin/apachectl-------程序apachectl的路径    
httpd=${HTTPD-/usr/local/apache/bin/httpd}------主程序的路径    
prog=httpd    
pidfile=${PIDFILE-/var/run/httpd.pid}-------pid路径    
lockfile=${LOCKFILE-/var/lock/subsys/httpd}    
RETVAL=0

start() {  
        echo -n $"Starting $prog: "    
        LANG=$HTTPD_LANG daemon --pidfile=${pidfile} $httpd $OPTIONS    
        RETVAL=$?    
        echo    
        [ $RETVAL = 0 ] && touch ${lockfile}    
        return $RETVAL    
}

stop() {  
  echo -n $"Stopping $prog: "    
  killproc -p ${pidfile} -d 10 $httpd    
  RETVAL=$?    
  echo    
  [ $RETVAL = 0 ] && rm -f ${lockfile} ${pidfile}    
}    
reload() {    
    echo -n $"Reloading $prog: "    
    if ! LANG=$HTTPD_LANG $httpd $OPTIONS -t >&/dev/null; then    
        RETVAL=$?    
        echo $"not reloading due to configuration syntax error"    
        failure $"not reloading $httpd due to configuration syntax error"    
    else    
        killproc -p ${pidfile} $httpd -HUP    
        RETVAL=$?    
    fi    
    echo    
}

# See how we were called.  
case "$1" in    
  start)    
  start    
  ;;    
  stop)    
  stop    
  ;;    
  status)    
        status -p ${pidfile} $httpd    
  RETVAL=$?    
  ;;    
  restart)    
  stop    
  start    
  ;;    
  condrestart)    
  if [ -f ${pidfile} ] ; then    
    stop    
    start    
  fi    
  ;;    
  reload)    
        reload    
  ;;    
  graceful|help|configtest|fullstatus)    
  $apachectl $@    
  RETVAL=$?    
  ;;    
  *)    
  echo $"Usage: $prog {start|stop|restart|condrestart|reload|status|fullstatus|graceful|help|configtest}"    
  exit 1    
esac

exit $RETVAL  
httpd-2.4上做虚拟主机    
    1、#vim /etc/httpd24/httpd.conf               
        (1)注释#DocumentRoot "/usr/local/apache/htdocs"                   
            开启虚拟机功能    
                Include /etc/httpd24/extra/httpd-vhosts.conf    
            由于2.4版本权限有严格限制,必须得给权限    
                <Directory ~ "/usr/local/host">    
                     Options -Indexes -FollowSymLinks                     
                     AllowOverride None    
                     Require all granted    
                </Directory>    
        (2)虚拟主机不再需要NameVirtualHost指令    
            在    #vim /etc/httpd24/extra/httpd-vhosts.conf
            <VirtualHOST 172.16.3.1:80>    
                documentroot "/usr/local/host1"    
                servername www.centos.com    
                ErrorLog /usr/local/host1/error_log    
                CustomLog /usr/local/host1/access_log common    
                    <Directory  "/usr/local/host1">    
                    Require all granted    
                    </Directory>    
            </VirtUalHOST>    
            <VirtualHOST 172.16.3.1:80>    
                    documentroot "/usr/local/host2"    
                    servername www.apache.com    
                    ErrorLog /usr/local/host2/error_log    
                    CustomLog /usr/local/host2/access_log common    
                        <Directory  "/usr/local/host2">    
                        Require all granted    
                        </Directory>    
            </VirtUalHOST>    
            <VirtualHOST 172.16.3.1:80>    
                    documentroot "/usr/local/host3"    
                    servername www.redhat.com    
                    ErrorLog /usr/local/host3/error_log    
                    CustomLog /usr/local/host3/access_log common    
                        <Directory  "/usr/local/host3">    
                        Require all granted    
                        </Directory>    
            </VirtUalHOST>    
    至此完成   
二、mariadb编译安装    
mariadb-5.5.36:    
        通过二进制格式安装:    
        编译好的二进制程序:(安装平台是有关系的,32位的操作系统,只能安装32位数据库)    
1、下载安装包,展开程序    
    mariadb-5.5.36-linux-x86_64.tar.gz    
    (1)mariadb安装目录必须是mysqld9(否则一些默认的程序无法运行)    
        #tar xf  mariadb-5.5.36-linux-x86_64.tar.gz -C /usr/local------指定解压目录    
    (2)查看软件包提示怎么安装的    
        #ls /usr/local/mariadb-5.5.36-linux-x86_64    
             INSTALL-BINARY---------这个文件当中说明了怎么安装

    (3)数据库的数据我们一般存储在和系统不在同一个磁盘上指定的LVM的单独逻辑卷中(方便以后管理扩展、快照备份等),以保重数据不丢失。  
         创建个逻辑卷    
            #fdisk /dev/sda (创建/dev/sda3,类型为8e)    
            #kpartx -af /dev/ada----加载磁盘分区信息    
            #partx -a /dev/sda    
            #pvcreate /dev/sda3    
            #vgcreate myvg /dev/sda3    
            #lvcreate -L 3G -n mydata myvg    
            #mke2fs -t ext4 -L MYDATA -b 4096 -m 3 /dev/myvg/mydata    
            #mkdir mydata    
            #echo "LABEL=MYDATA      /mydata        ext4    defaults        0 0 >> /etc/fstab    
            #mount -a---立即生效挂载分区    
            #mkdir /mydata/data----创建个子目录来存放数据    
    (4)创建数据库的用户和组为mysql用户    
            #groupadd -r mysql    
            #useradd -r -g mysql mysql    
    (5)设置存放数据目录的属组和属主    
            #chown  -R mysql.mysql /mydata/data    
    2、安装mariadb    
        # ln -sv  mariadb-5.5.36-linux-x86_64/ mysql---方便以后升级安装重名问题,我们在这里创建链接,下次在安装的时候就直接删除连接即可。    
        #cd /usr/local/mysql    
        #chown -R root.mysql ./*    
        (1)初始化修改配置文件    
            配置文件:/usr/local/mysql/support-files    
            在这里我们说下配置文件:    
                my-small.cnf--可用内存的不同的配置文件(小)    
                my-large.cnf----(大)    
                    my-huge.cnf    ------(巨大)   
                由于这里提供的配置文件与物理机配置不同,选择不同的配置文件。    
                我们这里使用的是虚拟机做实验,用my-large.cnf足够了    
            复制配置文件,以my-large.cnf为模版    
            #mkdir /etc/mysql(默认情况下有rpm -ql mysql-libs查看下,默认提供mysql客户端包)    
            #cp /usr/local/mysql/support-files/my-large.cnf /etc/mysql/my.cnf    
            #vim /etc/mysql/my.cnf    
                在配置文件中必须加上指明数据存储的目录datadir = /mydata/data这个目录必须放定义mysqld属性下    
                    [client]    
                        #password       = your_password    
                        port            = 3306    
                        socket          = /tmp/mysql.sock

                        # Here follows entries for some specific programs

                        # The MariaDB server  
                    [mysqld]    
                        port            = 3306    
                        socket          = /tmp/mysql.sock    
                        skip-external-locking    
                        key_buffer_size = 256M    
                        max_allowed_packet = 1M    
                        table_open_cache = 256    
                        sort_buffer_size = 1M    
                        read_buffer_size = 1M    
                        read_rnd_buffer_size = 4M    
                        myisam_sort_buffer_size = 64M    
                        thread_cache_size = 8    
                        query_cache_size= 16M    
                        # Try number of CPU‘s*2 for thread_concurrency    
                        thread_concurrency = 8    
                        datadir = /mydata/data-----在这个配置文件 中只需要添加这条信息即可指定数据的存储目录    
        (2)执行初始化脚本;    
                由于mysql_install_db需要/usr/local/mysql/目录下的bin文件的信息,指明路径执行    
            #scripts/mysql_install_db --datadir=/mydata/data --user=mysql    
                    命令解释:--datadir=/mydata/data:指定数据库存放的目录    
                              --user=mysql:必须用mysql用户运行    
        (3)查看初始化是否成功    
            # ls /mydata/data(主要查看我们存放数据的目录下是否生成数据库信息。)    
            aria_log.00000001  mysql             mysql-bin.000002  performance_schema    
            aria_log_control   mysql-bin.000001  mysql-bin.index   test    
        (4)启动服务这里需要启动脚本    
                在安装目录下/usr/local/mysql/support-files/    
                #ls /usr/local/mysql/support-files/    
                    [root@ning mysql]# ls support-files/(中的mysql.server)    
                    binary-configure   magic                   my-medium.cnf        mysql.server    
                    config.huge.ini    my-huge.cnf             my-small.cnf         ndb-config-2-node.ini    
                    config.medium.ini  my-innodb-heavy-4G.cnf  mysqld_multi.server  SELinux    
                    config.small.ini   my-large.cnf            mysql-log-rotate     solaris    
                只要是安装目录没有改动(/usr/local/mysql下),复制过去就能启动    
                # cp /usr/local/mysql/support-files/mysql.server /etc/rc.d/init.d/mysqld(注意下,要是你的虚拟机上还装有不同版本的mysql,在启动脚本下有服务启动脚本,你只需要复制过去叫,mysqld55起个名字即可,在以后使用时记得即可)    
                #chkconfig --add mysqld    
                #chkcofnig --list    
                #service mysqld start

        (5)测试:安装的结果,由于是我们编译安装还需要提供,启动命令的修改  
                    导出:命令    
                        # vim /etc/profile.d/mysql.sh    
                                export PATH=/usr/local/mysql/bin:$PATH----指定路径    
                        # source /etc/profile.d/mysql.sh    
                    导出:帮助信息    
                        #vim /etc/man.config    
                             MANPATH /usr/local/mysql/man    
                    导出:头信息文件    
                        #ln -sv /usr/local/mysql/include/ /usr/include/mysql    
                    导出:库文件    
                        #ldconfig -v |grep mysql- --查看以下库文件版本    
                        # vim /etc/ld.so.conf.d/mysql.conf--创建配置文件并添加以下内容即可    
                            usr/local/mysql/lib    
            成功的结果:    
            [root@ning mysql]# mysql    
                Welcome to the MariaDB monitor.  Commands end with ; or \g.    
                Your MariaDB connection id is 4    
                Server version: 5.5.36-MariaDB-log MariaDB Server-----查看版本是否正确

                Copyright (c) 2000, 2014, Oracle, Monty Program Ab and others.

                Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.

                MariaDB [(none)]> Ctrl-C -- exit!  
                Aborted    
                [root@ning mysql]# vim /etc/profile.d/mysql.sh    
                [root@ning mysql]# mysql    
                Welcome to the MariaDB monitor.  Commands end with ; or \g.    
                Your MariaDB connection id is 5    
                Server version: 5.5.36-MariaDB-log MariaDB Server

                Copyright (c) 2000, 2014, Oracle, Monty Program Ab and others.

                Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.

                MariaDB [(none)]>    
三、PHP编译安装    
1、编译安装PHP-5.4.26    
    (1)编译环境    
        # yum -y groupinstall "Desktop Platform Development"    
        # yum -y install bzip2-devel libmcrypt-devel    (PHP编译安装时会用到,压缩库)    
    (2)解压编译安装    
        # tar xf php-5.4.26.tar.bz2    
        # cd php-5.4.26    
        #./configure --prefix=/usr/local/php --with-mysql=/usr/local/mysql --with-openssl --with-mysqli=/usr/local/mysql/bin/mysql_config --enable-mbstring --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml  --enable-sockets --with-apxs2=/usr/local/apache/bin/apxs --with-mcrypt  --with-config-file-path=/etc --with-config-file-scan-dir=/etc/php.d --with-bz2  --enable-maintainer-zts    
         命令解释    
            --prefix=/usr/local/php  ----------------------PHP安装路径    
            --with-mysql=/usr/local/mysql -----------------指定mysql的位置,(编译的mysql安装需要指明安装的路径,如果是rpm包安装的--with-mysql会找mysql-devel包安装的位置,需要单独安装)    
            --with-openssl ---------------------------------支持openssl    
            --with-mysqli=/usr/local/mysql/bin/mysql_config -----mysql的另外一种接口,有些PHP是通过这个接口来连接的。    
            --enable-mbstring ------------------------------支持多字节字串(支持中文)    
            --with-freetype-dir ----------------------------字体处理工具    
            --with-jpeg-dir --------------------------------直接生成jpeg图片的    
            --with-png-dir ---------------------------------直接生成png图片    
            --with-zlib ------------------------------------压缩库    
            --with-libxml-dir=/usr -------------------------扩展标记语言(跨平台交互的)指明库文件的位置在/usr下(不指定默认去/usr/local找)    
            --enable-xml  ----------------------------------启用xml功能    
            --enable-sockets -------------------------------允许PHP基于sockets通信    
            --with-apxs2=/usr/local/apache/bin/apxs --------编译第三方模块的,指定编译模块的位置,在/usr/local/apache/bin/apxs    
            --with-mcrypt-----------------------------------支持使用加密库 
            --with-config-file-path=/etc -------------------php配置文件存放位置(php.ini)    
            --with-config-file-scan-dir=/etc/php.d ---------php复制配置文件的存放位置(以.ini结尾的文件)    
            --with-bz2  ------------------------------------支持bz2压缩    
            --enable-maintainer-zts-------------------------mpm为worker和event必须加上    
            说明:    
            1、这里为了支持apache的worker或event这两个MPM,编译时使用了--enable-maintainer-zts选项。    
            2、如果使用PHP5.3以上版本,为了链接MySQL数据库,可以指定mysqlnd,这样在本机就不需要先安装MySQL或MySQL开发包了。mysqlnd从php 5.3开始可用,可以编译时绑定到它(而不用和具体的MySQL客户端库绑定形成依赖),但从PHP 5.4开始它就是默认设置了。    
            # ./configure --with-mysql=mysqlnd --with-pdo-mysql=mysqlnd --with-mysqli=mysqlnd    
-----------------------------------------------------------------------------    
        一个小错误编译时检查编译环境时出现:checking for xml2-config path...    
                                            configure: error: xml2-config not found. Please check your libxml2 installation.    
        解决方法:    
            # yum install libxml2-devel    
----------------------------------------------------------------------    
        #make && make install    
2、为php提供配置文件:    
        # cp php.ini-production /etc/php.ini (如果是开放环境就需要提供cp php.ini-development  /etc/php.ini)    
3、 编辑apache配置文件httpd.conf,以apache支持php    
     # vim /etc/httpd/httpd.conf    
    (1)、添加如下二行    
       AddType application/x-httpd-php  .php    
       AddType application/x-httpd-php-source  .phps

    (2)、定位至DirectoryIndex index.html    
       修改为:    
        DirectoryIndex  index.php  index.html

4、测试:  
        首先启动服务    
                #service httpd24 restart    
                #service mysqld55 restart    
        (1)、测试php是否正常使用    
            #vim /usr/local/host1/index.php    
                    <html>    
                        <?php    
                        phpinfo();    
                        ?>    
                    </html>    
~            
          测试结果有图有真相编译安装php成功图

        (2)测试数据库是否能够连同  
            #vim /usr/local/host1/index.php    
            <html> <body><h>ninghongliang </h>    
            <?php    
                $link = mysql_connect(‘localhost‘,‘liang‘,‘ning‘);    
                if ($link)    
                    echo "Success...";    
                else    
                    echo "Failure";    
                ?>    
            </body></html>

    测试结果(有图有真相)测试连接数据库图    
    数据库授权账户命令:    
        #mysql    
        >GRANT ALL ON mydb.* TO ‘root‘@‘localhost‘ IDENTIFIED BY ‘ning‘;(授权帐号为root,密码为ning)    
    在apache上安装phpMyAdmin:    
            #cd /usr/local/host2    
            #tar xf  phpMyAdmin-3.5.1-all-languages.tar.bz2    
            #mv  phpMyAdmin-3.5.1-all-languages php    
    浏览器测试:    
http://www.apache.com/php 登入数据库授权的帐号即可

QQ截图20140813221931    
5、压力测试:    
    安装xcache,为php加速:   

    (1)编译安装xcache-3.10  
        #tar xf tar xf xcache-3.1.0.tar.bz2    
        # cd xcache-3.0.3    
        # /usr/local/php/bin/phpize----是个应用程序来生成configure(用来和当前的php版本来整合生成configure)    
        # ./configure --enable-xcache --with-php-config=/usr/local/php/bin/php-config    
            命令解释:--enable-xcache--------------启用xcache模块    
                      --with-php-config=/usr/local/php/bin/php-config----指定php中的配置文件    
        # make && make install    
        安装结束时,会出现类似如下行:    
        Installing shared extensions:     /usr/local/php/lib/php/extensions/no-debug-zts-20100525/---下游xcache.so的模块    
    (2)编译完成之后要给PHP提供配置文件    
            #ls /root/xcache-3.1.0源码目录下有 xcache.ini配置文件    
            首先将xcache提供的样例配置导入php.ini    
            # mkdir /etc/php.d-----PHP会读取配置文件    
            #cd /root/xcache-3.1.0    
            # cp xcache.ini /etc/php.d    
            # vim /etc/php.d/xcache.ini    
            接下来编辑/etc/php.d/xcache.ini,找到extension开头的行,修改为如下行:    
            extension = /usr/local/php/lib/php/extensions/no-debug-zts-20100525/xcache.so

            注意:如果php.ini文件中有多条extension指令行,要确保此新增的行排在第一位。  
    没有装xcache前后的测试结果:    
        # ab -n 2000 -c 1000 http://www.apache.com/    
            Requests per second:    229.73 [#/sec] (mean)    
            Time per request:       4353.017 [ms] (mean)    
            Time per request:       4.353 [ms] (mean, across all concurrent requests)    
            Transfer rate:          139.76 [Kbytes/sec] received    
            Requests per second:    95.09 [#/sec] (mean)    
            Time per request:       10516.734 [ms] (mean)    
            Time per request:       10.517 [ms] (mean, across all concurrent requests)    
            Transfer rate:          57.53 [Kbytes/sec] received

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