topic Re: how to check whether processor is duel-core in Operating System - Linux

how to check whether processor is duel-core

pnvs — Thu, 11 Oct 2007 03:49:05 GMT

Hi,
Can anyone please tell me how can I check the number of cores for a processor in HP-UX 11i server.

Re: how to check whether processor is duel-core

AwadheshPandey — Thu, 11 Oct 2007 05:16:17 GMT

use
cstm>
map
selall
info
infolog
see the number of cpus and use
#top
to check number of cores

Re: how to check whether processor is duel-core

pnvs — Thu, 11 Oct 2007 07:50:26 GMT

CPU LOAD USER NICE SYS IDLE BLOCK SWAIT INTR SSYS
0 0.01 0.0% 0.0% 0.4% 99.6% 0.0% 0.0% 0.0% 0.0%
1 0.06 0.0% 0.0% 0.2% 99.8% 0.0% 0.0% 0.0% 0.0%
2 0.00 1.0% 0.0% 0.4% 98.6% 0.0% 0.0% 0.0% 0.0%
3 1.00 99.6% 0.0% 0.4% 0.0% 0.0% 0.0% 0.0% 0.0%
--- ---- ----- ----- ----- ----- ----- ----- ----- -----
avg 0.27 25.2% 0.0% 0.4% 74.4% 0.0% 0.0% 0.0% 0.0%
========================================
above is the top output. But how can I see number of cores here. number of cores for a processor means whethre the processor is single core or dual core. If I am rite can you please tell me how to check whether it is Single or dual core processor

Re: how to check whether processor is duel-core

Oviwan — Thu, 11 Oct 2007 08:22:35 GMT

if you have itanium do a "machinfo"
or
ioscan -Cprocessor

Re: how to check whether processor is duel-core

pnvs — Thu, 11 Oct 2007 09:06:24 GMT

Its a PA-RISC system only.

# ioscan -Cprocessor
H/W Path Class Description
===============================
160 processor Processor
162 processor Processor
164 processor Processor
166 processor Processor
#

how can I get whether it is single or dual core with above output

Re: how to check whether processor is duel-core

Matti_Kurkela — Thu, 11 Oct 2007 17:53:26 GMT

Your "top" listing indicates your system has four CPU cores.

Your "ioscan" listing indicates your system has four physical processors.

4 / 4 = 1, so your processors are all single-core processors.

With dual-core processors, you would get two CPU lines (one for each core) in "top" per each physical processor.

Another way would be to find out the PA-RISC CPU type: if it is not PA-8800 nor PA-8900, it cannot be dual-core.

MK

Re: how to check whether processor is duel-core

pnvs — Fri, 12 Oct 2007 05:23:13 GMT

OK..I got it..Thanks a lot to all

Many Thanks&Regards.
PNVS

Re: how to check whether processor is duel-core

pnvs — Fri, 12 Oct 2007 05:26:32 GMT

Thanks to all