Originally Posted by nkedel

Those are still fairly beefy processors by some standards, and I'd expect for a discussion forum that in general beefing up disk or memory would be of a greater advantage than bigger processors. Past experience with MySQL says that it will happily use as much memory as you can throw at it for caches.


Have you run mysqltuner.pl or something similar to check on how the mysql is being handled? Are you running an up-to-date version (and have you considered moving to MariaDB instead?)