• PHP开启缓存加速


     PHP默认会将Operate Code文件丢弃,缓存加速是将其保存下来,放置共享内存中,以便在下次调用该PHP页面时重用,避免相同代码的重复编译

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    ■ LAMP环境PHP解析原理
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    Apache接收客户的PHP程序请求,并根据规则过滤之
    Apache将PHP程序请求传递给PHP处理模块libphp5.so
    PHP引擎定位磁盘上的PHP文件,并将其加载到内存中解析
    PHP处理模块libphp5.so将PHP源码编译成opcode
    PHP处理模块libphp5.so执行opcode,然后把opcode缓存起来
    Apache接收客户端新的PHP程序请求,PHP引擎直接读取缓存执行opcode文件,并将结果返回

    ■ LNMP环境PHP解析原理
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    Nginx接收客户端的PHP程序访问请求
    Nginx根据扩展名等过滤规则将PHP程序请求传递给解析PHP的FCGI(PHP FPM)进程
    PHP FPM进程调用PHP解析器读取站点磁盘上的PHP文件,并加载到内存中
    PHP解析器将PHP程序编译成为opcode文件,然后把opcode缓存起来
    PHP FPM引擎执行opcode树后,返回数据给Nginx,进而返回客户端
    Nginx接收客户新的PHP程序请求,PHP FPM引擎就会直接读取缓存中的opcode并执行,将结果返回

    ■ 缓存加速插件安装配置(xcache)
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    1. [root@Web_server src]# wget http://xcache.lighttpd.net/pub/Releases/3.2.0/xcache-3.2.0.tar.bz2
    2. [root@Web_server src]# tar xf xcache-3.2.0.tar.bz2
    3. [root@Web_server src]# cd xcache-3.2.0
    4. [root@Web_server xcache-3.2.0]# /usr/local/php/bin/phpize
    5. [root@Web_server xcache-3.2.0]# ./configure --enable-xcache --with-php-config=/usr/local/php/bin/php-config  
    6. [root@Web_server xcache-3.2.0]# make && make install
    7. [root@Web_server xcache-3.2.0]# ll /usr/local/php/lib/php/extensions/no-debug-non-zts-20121212/
    8. total 2208
    9. -rwxr-xr-x 1 root root 1021684 Apr 13 10:33 opcache.a
    10. -rwxr-xr-x 1 root root  538161 Apr 13 10:33 opcache.so
    11. -rwxr-xr-x 1 root root  692628 Apr 18 09:44 xcache.so      #<==生成xcache.so模块
    12.  
    13. [root@Web_server xcache-3.2.0]# cat /usr/local/src/xcache-3.2.0/xcache.ini >> /usr/local/php/etc/php.ini
    14. [root@Web_server xcache-3.2.0]# tail -85 /usr/local/php/etc/php.ini | egrep -v "^;|^$"
    15. [xcache-common]
    16. extension = xcache.so
    17. [xcache.admin]
    18. xcache.admin.enable_auth = On
    19. xcache.admin.user = "mOo"
    20. xcache.admin.pass = "md5 encrypted password"
    21. [xcache]
    22. xcache.shm_scheme =        "mmap"
    23. xcache.size  =               256M
    24. xcache.count =                 2
    25. xcache.slots =                8K
    26. xcache.ttl   =                 86400
    27. xcache.gc_interval =          3600
    28. xcache.var_size  =            64M

    #更改标红参数,生产环境根据硬件和业务数据来调整

    1. [root@Web_server xcache-3.2.0]# /usr/local/php/bin/php -v    #检查配置
    2. PHP 5.5.31 (cli) (built: Apr 13 2016 10:29:58)
    3. Copyright (c) 1997-2015 The PHP Group
    4. Zend Engine v2.5.0, Copyright (c) 1998-2015 Zend Technologies
    5. with XCache v3.2.0, Copyright (c) 2005-2014, by mOo
    6. with XCache Cacher v3.2.0, Copyright (c) 2005-2014, by mOo
    7.  
    8. [root@Web_server ~]# echo -n "szk" |md5sum
    9. [root@Web_server ~]# vim /usr/local/php/etc/php.ini   #配置xcache用户密码
    10. xcache.admin.user = "szk"
    11. xcache.admin.pass = "005eff7dd9626f0c30f2eb8003ceafc9"
    12. [root@Web_server ~]# cp -a /usr/local/src/xcache-3.2.0/htdocs/ /data/www/xadmin
    13. [root@Web_server ~]# chown -R nobody.nobody /data/www/xadmin
    14. [root@Web_server ~]# /etc/init.d/php-fpm start

    ■ 缓存加速插件安装配置(OPcache)
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    #若5.5版本,会自动安装opcache插件,编译时--enable=opcache启用

    1. [root@Web_server ~]#  ll /usr/local/php/lib/php/extensions/no-debug-non-zts-20121212/  
    2. -rwxr-xr-x 1 root root  538161 Apr 13 10:33 opcache.so
    3. [root@Web_server ~]# vim /usr/local/php/etc/php.ini  #若编译没有启用,则在配置文件中添加下面内容即可
    4. zend_extension=opcache.so
    5. [opcache]
    6. opcache.memory_consumption=128
    7. opcache.interned_strings_buffer=8
    8. opcache.max_accelerated_files=4000
    9. opcache.revalidate_freq=60
    10. opcache.fast_shutdown=1
    11. opcache.enable=1
    12. opcache.enable_cli=1
    13. [root@Web_server ~]# /usr/local/php/bin/php -v
    14. PHP 5.5.31 (cli) (built: Apr 13 2016 10:29:58) 
    15. Copyright (c) 1997-2015 The PHP Group
    16. Zend Engine v2.5.0, Copyright (c) 1998-2015 Zend Technologies
    17. with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2015, by Zend Technologies
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  • 原文地址:https://www.cnblogs.com/xiager/p/6855545.html
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