1CPUPOWER(1) cpupower Manual CPUPOWER(1)
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6 cpupower - Shows and sets processor power related values
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9 cpupower [ -c cpulist ] <command> [ARGS]
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11 cpupower -v|--version
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13 cpupower -h|--help
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17 cpupower is a collection of tools to examine and tune power saving
18 related features of your processor.
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20 The manpages of the commands (cpupower-<command>(1)) provide detailed
21 descriptions of supported features. Run cpupower help to get an over‐
22 view of supported commands.
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26 --help, -h
27 Shows supported commands and general usage.
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29 --cpu cpulist, -c cpulist
30 Only show or set values for specific cores. This option is not
31 supported by all commands, details can be found in the manpages of
32 the commands.
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34 Some commands access all cores (typically the *-set commands), some
35 only the first core (typically the *-info commands) by default.
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37 The syntax for <cpulist> is based on how the kernel exports CPU
38 bitmasks via sysfs files. Some examples:
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40 Input Equivalent to
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42 all all cores
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44 0-3 0,1,2,3
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46 0-7:2 0,2,4,6
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48 1,3,5-7 1,3,5,6,7
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50 0-3:2,8-15:4 0,2,8,12
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52 --version, -v
53 Print the package name and version number.
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57 cpupower-set(1), cpupower-info(1), cpupower-idle-info(1), cpupower-
58 idle-set(1), cpupower-frequency-set(1), cpupower-frequency-info(1),
59 cpupower-monitor(1), powertop(1)
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62 --perf-bias parts written by Len Brown <len.brown@intel.com>
63 Thomas Renninger <trenn@suse.de>
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67 07/03/2011 CPUPOWER(1)