| Dominik Brodowski | 7fe2f63 | 2011-03-30 16:30:11 +0200 | [diff] [blame] | 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 |
| Dominik Brodowski | 498ca79 | 2011-08-06 18:11:43 +0200 | [diff] [blame] | 6 | .B cpupower [ \-c cpulist ] <command> [ARGS] |
| Dominik Brodowski | 7fe2f63 | 2011-03-30 16:30:11 +0200 | [diff] [blame] | 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 | |
| Dominik Brodowski | 498ca79 | 2011-08-06 18:11:43 +0200 | [diff] [blame] | 16 | The manpages of the commands (cpupower\-<command>(1)) provide detailed |
| Dominik Brodowski | 7fe2f63 | 2011-03-30 16:30:11 +0200 | [diff] [blame] | 17 | descriptions of supported features. Run \fBcpupower help\fP to get an overview |
| Dominik Brodowski | 498ca79 | 2011-08-06 18:11:43 +0200 | [diff] [blame] | 18 | of supported commands. |
| Dominik Brodowski | 7fe2f63 | 2011-03-30 16:30:11 +0200 | [diff] [blame] | 19 | |
| 20 | .SH Options |
| 21 | .PP |
| 22 | \-\-help, \-h |
| 23 | .RS 4 |
| Dominik Brodowski | 498ca79 | 2011-08-06 18:11:43 +0200 | [diff] [blame] | 24 | Shows supported commands and general usage. |
| Dominik Brodowski | 7fe2f63 | 2011-03-30 16:30:11 +0200 | [diff] [blame] | 25 | .RE |
| 26 | .PP |
| 27 | \-\-cpu cpulist, \-c cpulist |
| 28 | .RS 4 |
| 29 | Only show or set values for specific cores. |
| Dominik Brodowski | 498ca79 | 2011-08-06 18:11:43 +0200 | [diff] [blame] | 30 | This option is not supported by all commands, details can be found in the |
| 31 | manpages of the commands. |
| Dominik Brodowski | 7fe2f63 | 2011-03-30 16:30:11 +0200 | [diff] [blame] | 32 | |
| Dominik Brodowski | 498ca79 | 2011-08-06 18:11:43 +0200 | [diff] [blame] | 33 | Some commands access all cores (typically the *\-set commands), some only |
| Dominik Brodowski | 7fe2f63 | 2011-03-30 16:30:11 +0200 | [diff] [blame] | 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(1), |
| 66 | cpupower-frequency-set(1), cpupower-frequency-info(1), cpupower-monitor(1), |
| 67 | 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> |