1 .TH CPUPOWER "1" "07/03/2011" "" "cpupower Manual" 2 .SH NAME 3 cpupower \- Shows and sets processor power related values 4 .SH SYNOPSIS 5 .ft B 6 .B cpupower [ \-c cpulist ] <command> [ARGS] 7 8 .B cpupower \-v|\-\-version 9 10 .B cpupower \-h|\-\-help 11 12 .SH DESCRIPTION 13 \fBcpupower \fP is a collection of tools to examine and tune power saving 14 related features of your processor. 15 16 The manpages of the commands (cpupower\-<command>(1)) provide detailed 17 descriptions of supported features. Run \fBcpupower help\fP to get an overview 18 of supported commands. 19 20 .SH Options 21 .PP 22 \-\-help, \-h 23 .RS 4 24 Shows supported commands and general usage. 25 .RE 26 .PP 27 \-\-cpu cpulist, \-c cpulist 28 .RS 4 29 Only show or set values for specific cores. 30 This option is not supported by all commands, details can be found in the 31 manpages of the commands. 32 33 Some commands access all cores (typically the *\-set commands), some only 34 the first core (typically the *\-info commands) by default. 35 36 The syntax for <cpulist> is based on how the kernel exports CPU bitmasks via 37 sysfs files. Some examples: 38 .RS 4 39 .TP 16 40 Input 41 Equivalent to 42 .TP 43 all 44 all cores 45 .TP 46 0\-3 47 0,1,2,3 48 .TP 49 0\-7:2 50 0,2,4,6 51 .TP 52 1,3,5-7 53 1,3,5,6,7 54 .TP 55 0\-3:2,8\-15:4 56 0,2,8,12 57 .RE 58 .RE 59 .PP 60 \-\-version, \-v 61 .RS 4 62 Print the package name and version number. 63 64 .SH "SEE ALSO" 65 cpupower-set(1), cpupower-info(1), cpupower-idle-info(1), 66 cpupower-idle-set(1), cpupower-frequency-set(1), cpupower-frequency-info(1), 67 cpupower-monitor(1), powertop(1) 68 .PP 69 .SH AUTHORS 70 .nf 71 \-\-perf\-bias parts written by Len Brown <len.brown@intel.com> 72 Thomas Renninger <trenn@suse.de>
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