1cpufreq-info(1) cpufreq-info(1)
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6 cpufreq-info - Utility to retrieve cpufreq kernel information
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9 cpufreq-info [options]
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12 A small tool which prints out cpufreq information helpful to developers
13 and interested users.
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16 -c --cpu <CPU>
17 <CPU> number which information shall be determined about.
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19 -e --debug
20 Prints out debug information.
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22 -f --freq
23 Get frequency the CPU currently runs at, according to the
24 cpufreq core.
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26 -w --hwfreq
27 Get frequency the CPU currently runs at, by reading it from
28 hardware (only available to root).
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30 -l --hwlimits
31 Determine the minimum and maximum CPU frequency allowed.
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33 -d --driver
34 Determines the used cpufreq kernel driver.
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36 -p --policy
37 Gets the currently used cpufreq policy.
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39 -g --governors
40 Determines available cpufreq governors.
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42 -a --affected-cpus
43 Determines which CPUs can only switch frequency at the same
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46 -o --proc
47 Prints out information like provided by the /proc/cpufreq inter‐
48 face in 2.4. and early 2.6. kernels.
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50 -m --human
51 human-readable output for the -f and -w parameters.
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53 -h --help
54 Prints out the help screen.
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57 You cant specify more than one of the output specific options -o -e -a
58 -g -p -d -l -w -f.
59 You also can't specify the -o option combined with the -c option.
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62 /sys/devices/system/cpu/cpu*/cpufreq/
63 /proc/cpufreq (deprecated)
64 /proc/sys/cpu/ (deprecated)
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67 Dominik Brodowski <linux@brodo.de> - author
68 Mattia Dongili<malattia@gmail.com> - first autolibtoolization
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71 cpufreq-set(1)
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75Mattia Dongili 0.1 cpufreq-info(1)