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Man Pages
x86info(1) FreeBSD General Commands Manual x86info(1)

x86info — display x86 CPU diagnostics

x86info [-a] [-c] [-f] [fB-F] [-m] [ -mhz] [-r] [?] [--all] [--cache] [--flags] [--verbose ] [--msr] [--mhz] [--registers] [--help]

This manual page documents x86info, a program which displays a range of information about the CPUs present in an x86 system.
In order to make full use of this program you need to have the CPU ID and MSR device drivers in your kernel with accessible device files /dev/cpu/<n>/cpuid and /dev/cpu/<n>/msr.

This program follows the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below.
? --help
Show summary of options.
-a --all
Show all information. Equivalent to -c -f -m -r -mhz.
-c --cache
Show TLB, cache sizes and cache associativity.
-f --flags
Show CPU feature flags.
-m --msr
Dump model specific registers. This feature is currently only supported on a few different processors. Future versions will include parsing of bits in MSRs for all processors.
-mhz --mhz
Estimate current clock rate.
-mp --mptable
Dump MP table showing CPUs BIOS knows about.
-r --registers
Show register values from all possible cpuid calls.
-s --show-machine-check
Show machine check exception information.
-v --verbose
Show verbose descriptions.

x86info was originally written by Dave Jones <davej@redhat.com>. It is now maintained by Nick Black.
This manual page was written by Mark Brown <broonie@debian.org> for the Debian GNU/Linux system (but may be used by others).
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License version 2.

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