| Dominik Brodowski | 498ca79 | 2011-08-06 18:11:43 +0200 | [diff] [blame] | 1 | .TH "cpupower-freqency-set" "1" "0.1" "Mattia Dongili" "" |
| Dominik Brodowski | 7fe2f63 | 2011-03-30 16:30:11 +0200 | [diff] [blame] | 2 | .SH "NAME" |
| 3 | .LP |
| Dominik Brodowski | 498ca79 | 2011-08-06 18:11:43 +0200 | [diff] [blame] | 4 | cpupower frequency\-set \- A small tool which allows to modify cpufreq settings. |
| Dominik Brodowski | 7fe2f63 | 2011-03-30 16:30:11 +0200 | [diff] [blame] | 5 | .SH "SYNTAX" |
| 6 | .LP |
| Dominik Brodowski | 498ca79 | 2011-08-06 18:11:43 +0200 | [diff] [blame] | 7 | cpupower [ \-c cpu ] frequency\-set [\fIoptions\fP] |
| Dominik Brodowski | 7fe2f63 | 2011-03-30 16:30:11 +0200 | [diff] [blame] | 8 | .SH "DESCRIPTION" |
| 9 | .LP |
| Dominik Brodowski | 498ca79 | 2011-08-06 18:11:43 +0200 | [diff] [blame] | 10 | cpupower frequency\-set allows you to modify cpufreq settings without having to type e.g. "/sys/devices/system/cpu/cpu0/cpufreq/scaling_set_speed" all the time. |
| Dominik Brodowski | 7fe2f63 | 2011-03-30 16:30:11 +0200 | [diff] [blame] | 11 | .SH "OPTIONS" |
| 12 | .LP |
| 13 | .TP |
| 14 | \fB\-d\fR \fB\-\-min\fR <FREQ> |
| 15 | new minimum CPU frequency the governor may select. |
| 16 | .TP |
| 17 | \fB\-u\fR \fB\-\-max\fR <FREQ> |
| 18 | new maximum CPU frequency the governor may select. |
| 19 | .TP |
| 20 | \fB\-g\fR \fB\-\-governor\fR <GOV> |
| 21 | new cpufreq governor. |
| 22 | .TP |
| 23 | \fB\-f\fR \fB\-\-freq\fR <FREQ> |
| 24 | specific frequency to be set. Requires userspace governor to be available and loaded. |
| 25 | .TP |
| 26 | \fB\-r\fR \fB\-\-related\fR |
| 27 | modify all hardware-related CPUs at the same time |
| 28 | .TP |
| 29 | \fB\-h\fR \fB\-\-help\fR |
| 30 | Prints out the help screen. |
| 31 | .SH "REMARKS" |
| 32 | .LP |
| 33 | By default values are applied on all cores. How to modify single core |
| 34 | configurations is described in the cpupower(1) manpage in the \-\-cpu option section. |
| 35 | .LP |
| 36 | The \-f FREQ, \-\-freq FREQ parameter cannot be combined with any other parameter. |
| 37 | .LP |
| 38 | FREQuencies can be passed in Hz, kHz (default), MHz, GHz, or THz by postfixing the value with the wanted unit name, without any space (frequency in kHz =^ Hz * 0.001 =^ MHz * 1000 =^ GHz * 1000000). |
| 39 | .LP |
| 40 | On Linux kernels up to 2.6.29, the \-r or \-\-related parameter is ignored. |
| 41 | .SH "FILES" |
| 42 | .nf |
| 43 | \fI/sys/devices/system/cpu/cpu*/cpufreq/\fP |
| 44 | \fI/proc/cpufreq\fP (deprecated) |
| 45 | \fI/proc/sys/cpu/\fP (deprecated) |
| 46 | .fi |
| 47 | .SH "AUTHORS" |
| 48 | .nf |
| 49 | Dominik Brodowski <linux@brodo.de> \- author |
| 50 | Mattia Dongili<malattia@gmail.com> \- first autolibtoolization |
| 51 | .fi |
| 52 | .SH "SEE ALSO" |
| 53 | .LP |
| 54 | cpupower\-frequency\-info(1), cpupower(1) |