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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.
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»
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»
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»
GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Softw more»