RH 7.3, Dual Xeon 2650, 'top' and cpuinfo say I have 4 cpus!

Philip Rowlands phr at doc.ic.ac.uk
Wed Aug 7 08:51:00 CDT 2002

On 7 Aug 2002, Brian K. Jones wrote:

>W'sup with this?  Top and 'cat /proc/cpuinfo' both say I have a Quad
>Xeon box!  I've opened up one of these boxes, and there are only two

You have hyperthreading enabled. It causes 1 physical CPU to appear as 2
to the OS. Have a look in the list archives for more info:




More information about the Linux-PowerEdge mailing list