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powertop

Tool that helps you find what software is using the most power

powertop is a Linux tool that finds the software component(s) that make your laptop use more power than necessary while it is idle. As of Linux kernel version 2.6.21, the kernel no longer has a fixed 1000Hz timer tick. This will (in theory) give a huge power savings because the CPU stays in low power mode for longer periods of time during system idle.

However... there are many things that can ruin the party, both inside the kernel and in userspace. PowerTOP combines various sources of information from the kernel into one convenient screen so that you can see how well your system is doing, and which components are the biggest problem.

Homepage:
Package version:1.13
Architecture:i386
Distribution:Dag
Filename:powertop-1.13-1.el5.rf.i386.rpm

/usr/share/doc/powertop-1.13/README

What's eating the battery life of my laptop? Why isn't it many more
hours? Which software component causes the most power to be burned?
These are important questions without a good answer... until now.

The Linux 2.6.21 kernel introduces the so called tickless-idle
feature. This feature allows the processor to be really idle for long
periods of time, rather than having to wake up every millisecond
more»

/usr/share/man/man8/powertop.8.gz

POWERTOP(8)                powertop manual               POWERTOP(8)



NAME
       powertop  -  program  to  analyze power consumption on Intel-
       based laptops

SYNOPSIS
       powertop [-d] [-t DOUBLE ] [-p] [-h] [-v]

DESCRIPTION
       powertop is a program that shows  the  power  consumption  on
       Intel-based  laptops  and  makes suggestions on how to extend
       battery lifetime
more»

/usr/share/doc/powertop-1.13/Changelog

1.11 --
	* Fix compilation with PIC
	* polling hint now refers to /dev/cdrom instead of /dev/scd0
	* fix calculations for systems that vary in power draw proc info
	* Display mwait usage
	* fix EOF at input
	* add --version|-v option
	* spelling error in tips.

1.10 --
	* add the "P" key to show the PIDs of the processes when possible
	* Add support for reading C-state info via sysfs
	  (Kevin Hi
more»

/usr/share/doc/powertop-1.13/COPYING

		    GNU GENERAL PUBLIC LICENSE
		       Version 2, June 1991

 Copyright (C) 1989, 1991 Free Softw
more»

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