06-18-2013
Thanks for your answer. Does it mean that if it is a 64 bit kernel, it could use even 40 GB if the laptop has that much memory? Also, does it mean that a PAE kernel would use maximum of 64 GB of memory even if the laptop/ machine had 128 GB of memory?
I hope my queries are clear that
1) A 64 bit kernel would use even upto 40 GB of memory if I increased the laptop memory to 40 from 8 GB.
2) A PAE kernel would use only 64 GB of memory even if the laptop/machine had 128 GB of memory.
Request you to please revert.
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LEARN ABOUT SUSE
laptop_mode
LAPTOP_MODE(8) System Manager's Manual LAPTOP_MODE(8)
NAME
/usr/sbin/laptop_mode - apply laptop mode settings
SYNOPSIS
/usr/sbin/laptop_mode [ cmd ] [ force ]
DESCRIPTION
This manual page documents briefly the /usr/sbin/laptop_mode command. laptop_mode is a program that applies the settings given in the
/etc/laptop-mode/laptop-mode.conf configuration file. The primary use is to control the laptop mode feature included in Linux kernels with
versions 2.6.6 and higher, and 2.4.23 and higher. This feature increases battery life by letting your hard drive spin down. This is
achieved by grouping disk write activity into "chunks" that are spaced at larger intervals than they normally would be. In addition to sup-
porting the Linux kernel's laptop mode feature, /usr/sbin/laptop_mode also supports various power saving modules which are configured
through configuration files in the /etc/laptop-mode/conf.d directory.
It is not recommended to call /usr/sbin/laptop_mode directly to start or stop laptop mode, except in hardware event handlers. To apply new
configuration settings from laptop-mode.conf, call the laptop-mode service init script with the reload parameter.
COMMANDS
Specify force as the second parameter to force laptop_mode to re-apply a state even if the computer is already in that state. These are the
values that are allowed for cmd :
auto Enable or disable laptop mode based on the current power state. Note that this will not do anything if the laptop-mode service
has not been started!
status Display a status report about everything that laptop_mode affects.
SEE ALSO
laptop-mode.conf(8).
AUTHOR
This manual page was written by Bart Samwel (bart@samwel.tk) for the Debian system (but may be used by others). Permission is granted to
copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later version published by
the Free Software Foundation.
On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.
LAPTOP_MODE(8)