We were running moodle2.1 without any problem for two years and there was a requirment for us to migrate the site to moodle 2.5. we followed the standard procedure to do so.( first method as described in the guide.
there is a damp slowness after the migration mean while we migrate the operating system to centos 5.5 to 5.10 also.
we have done the php acselarating part as well.
can somebody provide a hint of resolving this issue.