Ive got Xen up and running on our new box. It's a dedicated box and currently my.cnf is not setup at all, just has this in it. Code: [mysqld] set-variable = max_connections=500 log-slow-queries safe-show-database The box seems to be running fine, but I wonder if some tweaking is in order. Box Info: CentOS - Cpanel/WHM Processor: Intel Xeon E3-1230 (8M Cache, 3.20 GHz) Memory: 8GB DDR3-1333 ECC Hard Drives: 4x RE4 500GB SATA2 7200rpm 64MB (RAID-10) It shows 8 Processors in Top and WHM. Not sure if there is actually 2 CPUs on the box or the view it Hyperthreading look.