| powerd.8 (cf2280aca702edef4dbccf8d1e1a8ac01c8565e7) | powerd.8 (27f90bebef6ace7d113766f3ed47622d41c6ae2e) |
|---|---|
| 1.\" Copyright (c) 2005 Nate Lawson 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 10 unchanged lines hidden (view full) --- 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" | 1.\" Copyright (c) 2005 Nate Lawson 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 10 unchanged lines hidden (view full) --- 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" |
| 27.Dd December 21, 2009 | 27.Dd July 4, 2013 |
| 28.Dt POWERD 8 29.Os 30.Sh NAME 31.Nm powerd 32.Nd "system power control utility" 33.Sh SYNOPSIS 34.Nm 35.Op Fl a Ar mode --- 6 unchanged lines hidden (view full) --- 42.Op Fl P Ar pidfile 43.Op Fl r Ar percent 44.Op Fl v 45.Sh DESCRIPTION 46The 47.Nm 48utility monitors the system state and sets various power control options 49accordingly. | 28.Dt POWERD 8 29.Os 30.Sh NAME 31.Nm powerd 32.Nd "system power control utility" 33.Sh SYNOPSIS 34.Nm 35.Op Fl a Ar mode --- 6 unchanged lines hidden (view full) --- 42.Op Fl P Ar pidfile 43.Op Fl r Ar percent 44.Op Fl v 45.Sh DESCRIPTION 46The 47.Nm 48utility monitors the system state and sets various power control options 49accordingly. |
| 50It offers four modes (maximum, minimum, adaptive and hiadaptive) that can be 51individually selected while on AC power or batteries. 52The modes maximum, minimum, adaptive and hiadaptive may be abbreviated 53max, min, adp, hadp. 54.Pp 55Maximum mode chooses the highest performance values. 56Minimum mode selects the lowest performance values to get the most power 57savings. 58Adaptive mode attempts to strike a balance by degrading performance when 59the system appears idle and increasing it when the system is busy. | 50It offers power-saving modes that can be 51individually selected for operation on AC power or batteries. 52.Bl -tag -width ".Ar hiadaptive" 53.It Ar maximum 54Choose the highest performance values. 55May be abbreviated as 56.Ar max . 57.It Ar minimum 58Choose the lowest performance values to get the most power savings. 59May be abbreviated as 60.Ar min . 61.It Ar adaptive 62Attempt to strike a balance by degrading performance when the system 63appears idle and increasing it when the system is busy. |
| 60It offers a good balance between a small performance loss for greatly 61increased power savings. | 64It offers a good balance between a small performance loss for greatly 65increased power savings. |
| 62Hiadaptive mode is like adaptive mode, but tuned for systems where 63performance and interactivity are more important than power consumption. 64It increases frequency faster, reduces the frequency less aggressively and | 66May be abbreviated as 67.Ar adp . 68.It Ar hiadaptive 69Like 70.Ar adaptive 71mode, but tuned for systems where performance and interactivity are 72more important than power consumption. 73It increases frequency faster, reduces frequency less aggressively, and |
| 65will maintain full frequency for longer. | 74will maintain full frequency for longer. |
| 66The default mode is adaptive for battery power and hiadaptive for the rest. | 75May be abbreviated as 76.Ar hadp . 77.El |
| 67.Pp | 78.Pp |
| 68The | 79The default mode is 80.Ar adaptive 81for battery power and 82.Ar hiadaptive 83for the rest. 84.Pp |
| 69.Nm | 85.Nm |
| 70utility recognizes the following runtime options: | 86recognizes these runtime options: |
| 71.Bl -tag -width ".Fl r Ar percent" 72.It Fl a Ar mode 73Selects the 74.Ar mode 75to use while on AC power. 76.It Fl b Ar mode 77Selects the 78.Ar mode --- 69 unchanged lines hidden --- | 87.Bl -tag -width ".Fl r Ar percent" 88.It Fl a Ar mode 89Selects the 90.Ar mode 91to use while on AC power. 92.It Fl b Ar mode 93Selects the 94.Ar mode --- 69 unchanged lines hidden --- |