APC is a PHP accelerator extension that can be installed using PECL.  PECL comes with the php-pear package, and must be installed yum install php-pear install APC dependencies so that PECL can build APC: yum install php-devel httpd-devel yum groupinstall 'Development Tools' yum groupinstall 'Development ...

Install xcache - 3 linux commands: zypper sa -r http://download.opensuse.org/repositories/server:/php:/extensions/openSUSE_11.0/server:php:extensions.repo zypper ref zypper in php5-xcache this is for OpenSuse version 11.0; For other version, change openSUSE_11.0 with desire version, ex: openSUSE_10.3