x86info.

Somewhere in the mists of time, there was a program by Phil Karn (KA9Q)
called cpuid, which identified CPU. It didn't get updated very often,
and quickly got out of date. It also didn't do much more than just
simple decoding.

x86info was written to succeed Phils work. Initially, it borrowed some bits
from his code, but the last remnants are now long gone. Additional functionality
has been added, such as support for SMP, and building on non-Linux platforms.
The FreeBSD, NetBSD and Solaris backends are lightly tested and incomplete.



Features:
 - SMP support.
 - Recognition of all Intel/AMD/Centaur/Cyrix/VIA CPUs.
 - Parsing of model specific registers.
 - Approximation of current CPU MHz.

Requirements:
*  A C compiler and make.

*  Optionally, libpci (pciutils development files), found with pkg-config.
   It is used for the AMD --pm output. Without it, or with "make LIBPCI=",
   x86info builds without that PCI lookup.

*  For the MSR / per-CPU CPUID functions, x86info needs the cpuid and msr
   drivers from the Linux kernel (CONFIG_X86_CPUID, CONFIG_X86_MSR). If they
   are built as modules, load them first:

	modprobe cpuid
	modprobe msr

   The /dev/cpu/N/cpuid and /dev/cpu/N/msr nodes are created by devtmpfs
   and are only accessible to root. Without them x86info falls back to
   executing CPUID directly on the CPU it is running on.

Info on the command line switches can be found in the man page.