Quick methods to check.
Linux
[root~]# dmidecode -t processor |grep CPU Version: Intel(R) Xeon(R) CPU E7- 4830 @ 2.13GHz Version: Intel(R) Xeon(R) CPU E7- 4830 @ 2.13GHz Version: Intel(R) Xeon(R) CPU E7- 4830 @ 2.13GHz Version: Intel(R) Xeon(R) CPU E7- 4830 @ 2.13GHz
SunOS/Solaris
root# psrinfo -p 1 root# psrinfo -pv The physical processor has 2 cores and 16 virtual processors (0-15) The core has 8 virtual processors (0-7) The core has 8 virtual processors (8-15) SPARC-T5 (chipid 0, clock 3600 MHz)
IBM AIX
root@amsd2a-101# lparstat -i |grep -i cpu Online Virtual CPUs : 16 Maximum Virtual CPUs : 32 Minimum Virtual CPUs : 1 Maximum Physical CPUs in system : 256 Active Physical CPUs in system : 118 Active CPUs in Pool : - Shared Physical CPUs in system : 0 Physical CPU Percentage : 100.00% Desired Virtual CPUs : 16
HP/UX
HOUCY1-101:/root> ioscan -kfnC processor Class I H/W Path Driver S/W State H/W Type Description =================================================================== processor 0 0/10 processor CLAIMED PROCESSOR Processor processor 1 0/11 processor CLAIMED PROCESSOR Processor processor 2 0/12 processor CLAIMED PROCESSOR Processor processor 3 0/13 processor CLAIMED PROCESSOR Processor processor 4 0/14 processor CLAIMED PROCESSOR Processor processor 5 0/15 processor CLAIMED PROCESSOR Processor processor 6 0/16 processor CLAIMED PROCESSOR Processor processor 7 0/17 processor CLAIMED PROCESSOR Processor processor 8 1/10 processor CLAIMED PROCESSOR Processor processor 9 1/11 processor CLAIMED PROCESSOR Processor processor 10 1/12 processor CLAIMED PROCESSOR Processor processor 11 1/13 processor CLAIMED PROCESSOR Processor processor 12 1/14 processor CLAIMED PROCESSOR Processor processor 13 1/15 processor CLAIMED PROCESSOR Processor processor 14 1/16 processor CLAIMED PROCESSOR Processor processor 15 1/17 processor CLAIMED PROCESSOR Processor