On Tue, May 15, 2007 at 03:56:20PM +0100, Yashpal Nagar wrote: |vivek khurana wrote: |> --- Yashpal Nagar <[EMAIL PROTECTED]> wrote: |> |> |>> Hi! |>> |>> How do we figure out if the CPU is dual core? i am |>> running RHEL 3/4 and |>> SUSE 10. |>> I have used lshw, /proc/cpuinfo but none of them |>> tell this arch of CPU. |>> |> Does it show one cpu or two cpu ? |> |> |It shows double CPUs | |[EMAIL PROTECTED] root]# grep -E '(processor|physical)' /proc/cpuinfo |processor : 0 |physical id : 0 |processor : 1 |physical id : 3 |[EMAIL PROTECTED] root]# | |The count of physical id associated with processor tells how many core |it is. So in this case it is single core. | |[EMAIL PROTECTED] root]# grep -E '(physical|processor)' /proc/cpuinfo |processor : 0 |physical id : 0 |processor : 1 |physical id : 0 |processor : 2 |physical id : 3 |processor : 3 |physical id : 3 |[EMAIL PROTECTED] root]# |In this case it is dual core with each CPU. Physically there are only |2CPUs and showing 4. | |My question is: |If we can see double CPUs in both the case of HT & dual core, how do we |differentiate whether it is due to HT or dual core nature of CPU.
If CPU is HT capable it will appear as "ht" in "flags" field "/proc/cpuinfo" . | | |Cheers! |Yashpal | | | | | | | | | | | | | |-- |ASCII ribbon campaign ( ) | - against HTML email X | & vCards / \ | | |_______________________________________________ |ilugd mailinglist -- ilugd@lists.linux-delhi.org |http://frodo.hserus.net/mailman/listinfo/ilugd |Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/ilugd@lists.linux-delhi.org/ Thanks Ashish Shukla -- Ashish Shukla "Wah Java !!" आशीष शुक्ल ,= ,-_-. =. webpages: http://wahjava.googlepages.com ((_/)o o(\_)) weblog: http://wahjava.wordpress.com `-'(. .)`-' PGP: 1E00 4679 77E4 F8EE 2E4B 56F2 1F2F 8410 762E 5E74 \_/ _______________________________________________ ilugd mailinglist -- ilugd@lists.linux-delhi.org http://frodo.hserus.net/mailman/listinfo/ilugd Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/ilugd@lists.linux-delhi.org/
