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