cpupower-frequency-info(1)

1cpufreq-info(1)                                                cpufreq-info(1)
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NAME

6       cpufreq-info - Utility to retrieve cpufreq kernel information
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SYNTAX

9       cpufreq-info [options]
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DESCRIPTION

12       A small tool which prints out cpufreq information helpful to developers
13       and interested users.
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OPTIONS

16       -e --debug
17              Prints out debug information.
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19       -f --freq
20              Get frequency the  CPU  currently  runs  at,  according  to  the
21              cpufreq core.
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23       -w --hwfreq
24              Get  frequency  the  CPU  currently  runs at, by reading it from
25              hardware (only available to root).
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27       -l --hwlimits
28              Determine the minimum and maximum CPU frequency allowed.
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30       -d --driver
31              Determines the used cpufreq kernel driver.
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33       -p --policy
34              Gets the currently used cpufreq policy.
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36       -g --governors
37              Determines available cpufreq governors.
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39       -a --related-cpus
40              Determines which CPUs run at the same hardware frequency.
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42       -a --affected-cpus
43              Determines which CPUs need to have their  frequency  coordinated
44              by software.
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46       -s --stats
47              Shows cpufreq statistics if available.
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49       -y --latency
50              Determines the maximum latency on CPU frequency changes.
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52       -o --proc
53              Prints out information like provided by the /proc/cpufreq inter‐
54              face in 2.4. and early 2.6. kernels.
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56       -m --human
57              human-readable output for the -f, -w, -s and -y parameters.
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59       -h --help
60              Prints out the help screen.
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REMARKS

63       By default only values of core zero are displayed. How to display  set‐
64       tings  of  other  cores  is described in the cpupower(1) manpage in the
65       --cpu option section.
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67       You can't specify more than one of the output specific options -o -e -a
68       -g -p -d -l -w -f -y.
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70       You also can't specify the -o option combined with the -c option.
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FILES

73       /sys/devices/system/cpu/cpu*/cpufreq/
74       /proc/cpufreq (deprecated)
75       /proc/sys/cpu/ (deprecated)
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AUTHORS

78       Dominik Brodowski <linux@brodo.de> - author
79       Mattia Dongili<malattia@gmail.com> - first autolibtoolization
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