lscpu : Linux CPU architecture information

The lscpu command is CPU architecture information helper and can be found under Fedora Linux / RHEL / CentOS v6+ / Debian Linux v6+ and many other latest distro includes this command.

Warning : lscput command has bug and sometimes in Xen Dom0 kernel reports wrong data. So please use /proc/cpuinfo for verification purpose.

# lscpu

Output:

Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
CPU(s):                8
Thread(s) per core:    2
Core(s) per socket:    4
CPU socket(s):         1
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 30
Stepping:              5
CPU MHz:               1199.000
Virtualization:        VT-x
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              8192K