How to get physical CPU count, cores per CPU, and CPU type on RHEL and CentOS

anon091 · 01-08-2015, 10:13 AM

Hello everyone. What commands would I run on RHEL and CentOS servers to get
1) physical CPU count
2) cores per CPU
3) CPU type

Thanks in advance.

sudowtf · 01-08-2015, 10:26 AM

Code:

lscpu

anon091 · 01-08-2015, 10:29 AM

Thanks. So I'm guessing, and correct me if i'm wrong, the Sockets output is #1, Cores per CPU is #2, but for #3 I see the Vendor ID line, but is there a way to have it tell me something like "Intel Xeon L1234 @ 3GHz" or something like that, maybe with another command?

sudowtf · 01-08-2015, 10:32 AM

Well my debian (lscpu v2.25.2) tells me this on line "Model Name" (next under "Model"), but my CentOS (lscpu v2.17.2) does not provide me this line at all. So i suppose it's a version issue.

anon091 · 01-08-2015, 10:35 AM

My model line just gives me a double digit number. Is there a different command I could run to give me the full processor model?

sudowtf · 01-08-2015, 10:39 AM

how about

Code:

grep 'model name' /proc/cpuinfo

also, don't assume the number "names" reported equals number of cores. I have a 4-core i7, but it shows 8 results, because each of the 4 cores are hyper-threaded.

anon091 · 01-08-2015, 10:55 AM

Thanks. I see the output from that shows the full model name. So sounds like I use lscpu for #1 and #2, then for #3 I can run that and just use the name it repeats, right?

sudowtf · 01-08-2015, 10:57 AM

sure.

or see if you can find an updated .rpm version of lscpu that does the job.