DETERMINE CPU CORES IN LINUX

There are different types of cores, namely

1-Single core

2-Dual core

4-Quad core

6-Hex core

8-Oct core

   # cat /proc/cpuinfo

    # grep cores /proc/cpuinfo

    # grep “core id” /proc/cpuinfo

    # grep -i core /proc/cpuinfo

example for finding physical cores, here each CPU holds 6 cores(HEXA)

[root@server1 ~]# cat /proc/cpuinfo | egrep "processor|physical\ id|core\ id|cpu\ cores"

processor       : 0

physical id     : 0

core id         : 0

cpu cores       : 6

psrinfo -v :for Solaris


To find CPU Sockets


dmidecode|grep CPU

will display the number of CPU sockets

dmidecode|grep Populated

will display the populated sockets.