Ставим eAccelerator на CentOS

yum install php-devel
yum groupinstall 'Development Tools'

cd /usr/local/src/
wget http://bart.eaccelerator.net/source/0.9.6/eaccelerator-0.9.6.tar.bz2
tar -xvf eaccelerator-0.9.6.tar.bz2
cd eaccelerator-0.9.6
phpize
./configure
make
make install

vi /etc/php.d/eaccelerator.ini

extension="eaccelerator.so"
eaccelerator.shm_size="0"
eaccelerator.cache_dir="/var/cache/eaccelerator"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="0"
eaccelerator.shm_prune_period="0"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"

mkdir -p /var/cache/eaccelerator
chmod 0777 /var/cache/eaccelerator

/etc/init.d/httpd restart

PHP 5.1.6 (cli) (built: Nov 29 2010 16:47:37) 
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
    with eAccelerator v0.9.6, Copyright (c) 2004-2010 eAccelerator, by eAccelerator