Command to find information about CPUs on a UNIX machine

Question

Do you know if there is a UNIX command that will tell me what the CPU configuration for my Sun OS UNIX machine is  I am also trying to determine the memory configuration  Is there a UNIX command that will tell me that

User · Answer

The nproc command shows the number of processing units available:
$ nproc

Sample outputs: 4

lscpu gathers CPU architecture information form /proc/cpuinfon in human-read-able format:
$ lscpu

Sample outputs:

Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 8
On-line CPU(s) list: 0-7
Thread(s) per core: 1
Core(s) per socket: 4
CPU socket(s): 2
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 15
Stepping: 7
CPU MHz: 1866.669
BogoMIPS: 3732.83
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 4096K
NUMA node0 CPU(s): 0-7

User · Answer

There is no standard Unix command  AFAIK  I haven t used Sun OS  but on Linux  you can use this   cat  proc cpuinfo   Sorry that it is Linux  not Sun OS  There is probably something similar though for Sun OS

User · Answer

Firstly  it probably depends which version of Solaris you re running  but also what hardware you have   On SPARC at least  you have psrinfo to show you processor information  which run on its own will show you the number of CPUs the machine sees  psrinfo -p shows you the number of physical processors installed  From that you can deduce the number of threads cores per physical processors   prtdiag will display a fair bit of info about the hardware in your machine  It looks like on a V240 you do get memory channel info from prtdiag  but you don t on a T2000  I guess that s an architecture issue between UltraSPARC IIIi and UltraSPARC T1

User · Answer

I think you can use prtdiag or prtconf on many UNIXs

User · Answer

My favorite is to look at the boot messages   If it s been recently booted try running  etc dmesg   Otherwise find the boot messages  logged in  var adm or some place in  var

User · Answer

Try psrinfo to find the processor type and the number of physical processors installed on the system

[unix] Command to find information about CPUs on a UNIX machine

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