x86info is an application maintained by Dave Jones to identify CPUs fitted to a system. To quote the README file... 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 It didn't get updated very often, and quickly got out of date.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. For problems specific to the Cygwin/Win32 port, contact Matthew Gregan <mgregan@jade.co.nz>. Features: - SMP support. - Recognition of all Intel/AMD/IDT/Cyrix/VIA CPUs. - Parsing of model specific registers. - Approximation of current CPU MHz. Caveats: * For usage of the MSR / SMP functions, x86info needs the x86 cpuid driver provided with the Linux kernel 2.2.18 / 2.4.0, and the appropriate nodes in /dev To set up these devices, do the following.. mkdir /dev/cpu for i in 0 1 2 3 4 5 6 7 do mkdir /dev/cpu/$i ; cd /dev/cpu/$i mknod cpuid c 203 $i mknod msr c 202 $i done * If you are using the cpuid / msr drivers built as modules as opposed to built into the kernel, then you should ensure the following is in your /etc/modules.conf alias char-major-202 msr alias char-major-203 cpuid * To build under Win32/Cygwin, uncomment the second line in the Makefile, otherwise some files will fail to build. * Usage under Win32 is somewhat limited at present: - no support for reading MSRs (anyone want to write a driver?) * FreeBSD / OpenBSD / NetBSD also have the same limitations. Info on the command line switches can be found in the man page. Homepage: http://www.codemonkey.org.uk cpuid Entry created: Tue Mar 18 20:02:15 EST 2003 Entry owner: Michael Still (mikal@stillhq.com) Status: Unfinalized