longrun man page on DragonFly

longrun man page on DragonFly

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LONGRUN(4)	       BSD/i386 Kernel Interfaces Manual	    LONGRUN(4)

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⟩.

BSD				 June 30, 2001				   BSD

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