So, if I understand you all correctly, I need do nothing. The kernel will utilize them all as needed. If that correct? mw -- "Lose not thy airspeed, lest the ground rises up and smites thee." -- William Kershner http://crucis-court.com http://www.crucis.net/1632search On 12/23/2012 05:51 PM, Frank Cox wrote: > On Sun, 23 Dec 2012 17:22:52 -0600 > Mike Watson wrote: > >> The model only indicated >> dual core but CentOS is telling me there are four. > Hyperthreading, where two physical cores are split into four virtual cores. >