> apparently, php-cgi is causing server overload. How to reduce overload? By optimising your php code, using php opcode cache (apc, xcache, eaccelerator), by caching page parts (apc, memcache), by caching whole output (nginx fastcgi cache ( http://wiki.nginx.org/NginxHttpFcgiModule#fastcgi_cache ), varnish as front), by adding more hardware .. rr