On Tue, Mar 21, 2006 at 12:44:57AM -0800, Robinson Tiemuqinke wrote: > [root@testnode01 ~]# cat /proc/cpuinfo | grep flags > flags : fpu vme de pse tsc msr pae mce cx8 > apic sep mtrr pge mca cmov pat pse36 clflush dts acpi > mmx fxsr sse sse2 ss ht tm pbe lm pni monitor ds_cpl > cid xtpr > > In the above output, does "ht" means hyperthreading? Yes, but also the 'siblings' field is relevant. It's possible to have a ht CPU with no siblings. (Ie, only shows up as single CPU) > and "lm" means "64bit capability"? correct. Dave -- http://www.codemonkey.org.uk