vBulletin versions 3.7.x and higher have feature to offload some frequently called database queries to a vBulletin Datastore Cache – which maybe via File cache, Xcache, APC Cache or Memcached server caching. My personal preference is using Xcache for vBulletin Datastore Cache for single server setups which are Apache web...
Name: George Liu
Online Handle: eva2000
Location: Brisbane, Australia
Occupation: vBulletin.com technical support since 2001