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Diffstat (limited to 'usr.sbin/powerd/powerd.8')
-rw-r--r-- | usr.sbin/powerd/powerd.8 | 147 |
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diff --git a/usr.sbin/powerd/powerd.8 b/usr.sbin/powerd/powerd.8 deleted file mode 100644 index 0991bce..0000000 --- a/usr.sbin/powerd/powerd.8 +++ /dev/null @@ -1,147 +0,0 @@ -.\" Copyright (c) 2005 Nate Lawson -.\" All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" $FreeBSD$ -.\" -.Dd December 21, 2009 -.Dt POWERD 8 -.Os -.Sh NAME -.Nm powerd -.Nd "system power control utility" -.Sh SYNOPSIS -.Nm -.Op Fl a Ar mode -.Op Fl b Ar mode -.Op Fl i Ar percent -.Op Fl m Ar freq -.Op Fl M Ar freq -.Op Fl n Ar mode -.Op Fl p Ar ival -.Op Fl P Ar pidfile -.Op Fl r Ar percent -.Op Fl v -.Sh DESCRIPTION -The -.Nm -utility monitors the system state and sets various power control options -accordingly. -It offers four modes (maximum, minimum, adaptive and hiadaptive) that can be -individually selected while on AC power or batteries. -The modes maximum, minimum, adaptive and hiadaptive may be abbreviated -max, min, adp, hadp. -.Pp -Maximum mode chooses the highest performance values. -Minimum mode selects the lowest performance values to get the most power -savings. -Adaptive mode attempts to strike a balance by degrading performance when -the system appears idle and increasing it when the system is busy. -It offers a good balance between a small performance loss for greatly -increased power savings. -Hiadaptive mode is like adaptive mode, but tuned for systems where -performance and interactivity are more important than power consumption. -It increases frequency faster, reduces the frequency less aggressively and -will maintain full frequency for longer. -The default mode is adaptive for battery power and hiadaptive for the rest. -.Pp -The -.Nm -utility recognizes the following runtime options: -.Bl -tag -width ".Fl r Ar percent" -.It Fl a Ar mode -Selects the -.Ar mode -to use while on AC power. -.It Fl b Ar mode -Selects the -.Ar mode -to use while on battery power. -.It Fl i Ar percent -Specifies the CPU load percent level when adaptive -mode should begin to degrade performance to save power. -The default is 50% or lower. -.It Fl m Ar freq -Specifies the minimum frequency to throttle down to. -.It Fl M Ar freq -Specifies the maximum frequency to throttle up to. -.It Fl n Ar mode -Selects the -.Ar mode -to use normally when the AC line state is unknown. -.It Fl p Ar ival -Specifies a different polling interval (in milliseconds) for AC line state -and system idle levels. -The default is 250 ms. -.It Fl P Ar pidfile -Specifies an alternative file in which the process ID should be stored. -The default is -.Pa /var/run/powerd.pid . -.It Fl r Ar percent -Specifies the CPU load percent level where adaptive -mode should consider the CPU running and increase performance. -The default is 75% or higher. -.It Fl v -Verbose mode. -Messages about power changes will be printed to stdout and -.Nm -will operate in the foreground. -.El -.Sh SEE ALSO -.Xr acpi 4 , -.Xr apm 4 , -.Xr cpufreq 4 -.Sh HISTORY -The -.Nm -utility first appeared in -.Fx 6.0 . -.Sh AUTHORS -.An -nosplit -.An Colin Percival -first wrote -.Nm estctrl , -the utility that -.Nm -is based on. -.An Nate Lawson -then updated it for -.Xr cpufreq 4 , -added features, and wrote this manual page. -.Sh BUGS -The -.Nm -utility should also power down idle disks and other components besides the CPU. -.Pp -If -.Nm -is used with -.Pa power_profile , -they may override each other. -.Pp -The -.Nm -utility -should probably use the -.Xr devctl 4 -interface instead of polling for AC line state. |