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Manual Pages  — LONGRUN

NAME

longrun – Transmeta(TM) Crusoe(TM) LongRun(TM) support

CONTENTS

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 Ta Type Ta 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 <Mt athlete@kta.att.ne.jp> and Mitsuru IWASAKI <Mt iwasaki@FreeBSD.org>.
LONGRUN (4) June 30, 2001
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