fatvegan

PHP is been pretty slow for me since I left Apache 2 and the PHP code caching behind. I tried turck mmcache with PHP4 and it worked pretty badly. It sped things up, but lighttpd started freezing up every few hours. It was probably FastCGI screwing up and it might have been fixed with FastCGI since then. But I'm all PHP5 now, so I needed to use something else. The Lighttpd guys suggested (and maybe created) XCache so I tried it. It only took a few minutes to install and it's working sweet. WordPress page loads are down from 300ms to 50ms. I just hope it doesn't screw other things up.

I used the XCache installation instructions but had to do things a bit differently.

1. Downloaded the XCache source from http://xcache.lighttpd.net/

   ~/src $ wget http://... (the release url)
   ~/src $ tar -zxf xcache-*.tar.gz
   ~/src $ cd xcache
   

2. You have to install php5-dev and make if you haven't got them

   ~/src $ sudo apt-get install php5-dev make
   

3. Run the PHP/XCache installation stuff

   ~/src/xcache $ phpize
   ~/src/xcache $ ./configure --enable-xcache
   ~/src/xcache $ make
   ~/src/xcache $ sudo make install
   

4. Edit the php.ini file to tell it where the xcache.so file is located. Mine was at /usr/lib/php5/20051025/xcache.so. You need to edit the xcache.size setting (I used 32M, but others use 64M) and the extension (or zend_extension) setting.

   ~/src/xcache $ find /usr -name xcache.so
   ~/src/xcache $ sudo vi /etc/php5/php.ini
   

5. Check that it's working

   ~/src/xcache $ php-cgi -v
   

6. Restart lighttpd

   ~/src/xcache $ sudo /etc/init.d/lighttpd restart