Try to follow steps here ->
http://www.cyberciti.biz/faq/howto-rhel-install-xcahce-php-opcode-cacher/
However, I did a few change. I don't have
xcache.ini. I just merge everything in
xcache.ini into
php.ini.
About
xcache.so, after
make install, the file went to different path from that document. So, you have to check where it goes.
Check to make sure xCache loaded before Zend Optimizer or you will get an error that it doesn't work something like that. (Put
[xcache-common] before Zend Optimizer.
Also, if you compiled DA in PHP-cgi, just forget this module or anything similar, it doesn't work well with suPHP. When you check, it will say it's installed but it helps nothing.
Update : I just wrote something that is specifically for DA here ->
http://www.bxtra.net/Articles/2008-...he-CentOS-52-64-bit-has-DirectAdmin-installed