| .TH CPUPOWER "1" "07/03/2011" "" "cpupower Manual" |
| .SH NAME |
| cpupower \- Shows and sets processor power related values |
| .SH SYNOPSIS |
| .ft B |
| .B cpupower [ \-c cpulist ] <command> [ARGS] |
| |
| .B cpupower \-v|\-\-version |
| |
| .B cpupower \-h|\-\-help |
| |
| .SH DESCRIPTION |
| \fBcpupower \fP is a collection of tools to examine and tune power saving |
| related features of your processor. |
| |
| The manpages of the commands (cpupower\-<command>(1)) provide detailed |
| descriptions of supported features. Run \fBcpupower help\fP to get an overview |
| of supported commands. |
| |
| .SH Options |
| .PP |
| \-\-help, \-h |
| .RS 4 |
| Shows supported commands and general usage. |
| .RE |
| .PP |
| \-\-cpu cpulist, \-c cpulist |
| .RS 4 |
| Only show or set values for specific cores. |
| This option is not supported by all commands, details can be found in the |
| manpages of the commands. |
| |
| Some commands access all cores (typically the *\-set commands), some only |
| the first core (typically the *\-info commands) by default. |
| |
| The syntax for <cpulist> is based on how the kernel exports CPU bitmasks via |
| sysfs files. Some examples: |
| .RS 4 |
| .TP 16 |
| Input |
| Equivalent to |
| .TP |
| all |
| all cores |
| .TP |
| 0\-3 |
| 0,1,2,3 |
| .TP |
| 0\-7:2 |
| 0,2,4,6 |
| .TP |
| 1,3,5-7 |
| 1,3,5,6,7 |
| .TP |
| 0\-3:2,8\-15:4 |
| 0,2,8,12 |
| .RE |
| .RE |
| .PP |
| \-\-version, \-v |
| .RS 4 |
| Print the package name and version number. |
| |
| .SH "SEE ALSO" |
| cpupower-set(1), cpupower-info(1), cpupower-idle(1), |
| cpupower-frequency-set(1), cpupower-frequency-info(1), cpupower-monitor(1), |
| powertop(1) |
| .PP |
| .SH AUTHORS |
| .nf |
| \-\-perf\-bias parts written by Len Brown <len.brown@intel.com> |
| Thomas Renninger <trenn@suse.de> |
