NAME
longrun — Transmeta(TM) Crusoe(TM) LongRun(TM) support
SYNOPSIS
LongRun support is a collection of power saving modes for the Transmeta Crusoe chips, similar in scope to Intel’s SpeedStep. The following sysctl(8) MIBs control the different CPU modes:
|
Name |
|
|
hw.crusoe.longrun |
|
|
0: minimum frequency mode | ||||
|
1: power-saving mode | ||||
|
2: performance mode | ||||
|
3: maximum frequency mode | ||||
|
hw.crusoe.frequency | ||||
|
integer | ||||
|
no | ||||
|
Current frequency (MHz). | ||||
|
hw.crusoe.voltage | ||||
|
integer | ||||
|
no | ||||
|
Current voltage (mV). | ||||
|
hw.crusoe.percentage | ||||
|
integer | ||||
|
no | ||||
|
Processing performance (%). |
EXAMPLES
Print the current status:
% sysctl hw.crusoe
To set LongRun mode to performance oriented variable frequency mode (less power savings):
# sysctl hw.crusoe.longrun=2
HISTORY
The Transmeta(TM) Crusoe(TM) LongRun(TM) support first appeared in FreeBSD 4.4.
AUTHORS
LongRun support and this manual page were written by Tamotsu HATTORI <athlete [AT] kta.jp> and Mitsuru IWASAKI <iwasaki [AT] FreeBSD.org>.
BSD June 30, 2001 BSD