How many processors do we have?

• Article Type: General
• Product: Aleph
• Product Version: 19.01

Description:
Is there a command we can use to show how many processors we have?

Resolution:
For Sun, use the command:

uname -X
(the "numCPU" value you see in response is the number of processors)

or, as root:

psrinfo

For AIX, Digital, or Compaq use the command:

lsdev -C | grep proc
(there will be a line for each processor in the resulting display)

or, as root:

lcsfg -v | grep proc

For Linux:

more /proc/cpuinfo
(there will be a section for each processor, beginning with "0", -- so if the last section is "processor : 3", you have 4 processors)

With all of these if you have "dual-core" processors, you should multiply the number by 2; if you have "quad-core" processors, you should multiply the number by 4.