CPU and RAM performance on guest

[shutyaev]

server specs are:

Component	Model
Processor	2 x S2011 Intel Xeon E5-2560 (2.0 GHz, 20Mb, 8.0 GT/s, 8 Cores)
RAM	12 x DDR-III 16Gb 1600MHz PC-12800 Kingston ECC Reg (KVR16R11D4/16)
Platform	Intel R2312GL4GS (2U, Grizzly Pass)
Storage	RAID10 consisting of Controller: LSI 9260-16i SGL (LSI00208) Battery: LSI Logic LSliBBU07 Battery Backup Unit for 8880EM2, 9260-xx and 9280-xx Drives: 4 x 600GB SAS Hitachi Ultrastar 15K600 (HUS156060VLS600, 15000rpm, 64Mb)
Power supply	Intel FXX750PCRPS 750W Common Redundant Power Supply

[admin]

ensure the raid controller is set to write back cache with battery backup.. ensure the server is set to maximum performance in power settings in bios