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	Type	Changeable	Description
`hw.crusoe.longrun`	`integer`	yes	LongRun mode:
			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@kta.att.ne.jp> and Mitsuru IWASAKI <iwasaki@FreeBSD.org>.