1x86info(1) General Commands Manual x86info(1)
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6 x86info — display x86 CPU diagnostics
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9 x86info [-a] [-c] [-f] [fB-F] [-m] [-mhz] [-r] [?] [--all]
10 [--cache] [--flags] [--verbose] [--msr] [--mhz] [--registers]
11 [--help]
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14 This manual page documents x86info, a program which displays a range of
15 information about the CPUs present in an x86 system.
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17 In order to make full use of this program you need to have the CPU ID
18 and MSR device drivers in your kernel with accessible device files
19 /dev/cpu/<n>/cpuid and /dev/cpu/<n>/msr.
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22 This program follows the usual GNU command line syntax, with long
23 options starting with two dashes (`-'). A summary of options is
24 included below.
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26 ? --help
27 Show summary of options.
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29 -a --all
30 Show all information. Equivalent to -c -f -m -r -mhz.
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32 -c --cache
33 Show TLB, cache sizes and cache associativity.
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35 -f --flags
36 Show CPU feature flags.
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38 -m --msr
39 Dump model specific registers. This feature is currently
40 only supported on a few different processors. Future versions
41 will include parsing of bits in MSRs for all processors.
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43 -mhz --mhz
44 Estimate current clock rate.
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46 -mp --mptable
47 Dump MP table showing CPUs BIOS knows about.
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49 -r --registers
50 Show register values from all possible cpuid calls.
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52 -s --show-machine-check
53 Show machine check exception information.
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55 -v --verbose
56 Show verbose descriptions.
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59 x86info was written by Dave Jones <davej@redhat.com>.
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61 This manual page was written by Mark Brown <broonie@debian.org> for the
62 Debian GNU/Linux system (but may be used by others).
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64 Permission is granted to copy, distribute and/or modify this document
65 under the terms of the GNU General Public License version 2.
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69 x86info(1)