PowerTOP - Revision history

Benjamin Pineau: /* Intel PowerTOP */ delayed + link to the effective powertop homepage

2007-10-10T11:40:14Z

‎Intel PowerTOP: delayed + link to the effective powertop homepage

Csawtell: /* Intel PowerTOP */

2007-09-17T20:41:00Z

‎Intel PowerTOP

Csawtell: â†Created page with '== Intel PowerTOP == 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 kerne...'

2007-09-17T20:35:33Z

â†Created page with '== Intel PowerTOP == 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 kerne...'

New page

== Intel PowerTOP ==

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.

[http://www.linuxpowertop.org/powertop.php [[Image:powertop_small.png]]]
The PowerTOP curses based display
'''Requirements'''

For PowerTOP to work best, use a Linux kernel with the tickless idle (NO_HZ) feature enabled (version 2.6.21 or later). Currently, only 32-bit kernels have support for tickless idle; 64-bit kernels are expected to gain this feature in version 2.6.23.

PowerTOP works best on a laptop computer, or at least a computer with an Intel mobile processor (certain small non-laptop devices also contain a mobile processor). When using PowerTOP on a laptop, do so when running on battery.

@@ Line 7: / Line 7: @@
 '''Requirements'''
-For PowerTOP to work best, use a Linux kernel with the tickless idle (NO_HZ) feature enabled (version 2.6.21 or later). Currently, only 32-bit kernels have support for tickless idle; 64-bit kernels are expected to gain this feature in version 2.6.23.
+For PowerTOP to work best, use a Linux kernel with the tickless idle and highres timer stats (NO_HZ, CONFIG_HIGH_RES_TIMERS, CONFIG_TIMER_STATS) feature enabled (version 2.6.21 or later). Currently, only 32-bit kernels have support for tickless idle; 64-bit kernels are expected to gain this feature in version 2.6.24.
 PowerTOP works best on a laptop computer, or at least a computer with an Intel mobile processor (certain small non-laptop devices also contain a mobile processor). When using PowerTOP on a laptop, do so when running on battery.
-[http://www.linuxpowertop.org/powertop.php Link to PowerTOP]
+[http://www.linuxpowertop.org Link to PowerTOP]

@@ Line 3: / Line 3: @@
 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.
-[http://www.linuxpowertop.org/powertop.php [[Image:powertop_small.png]]]
+ [[Image:powertop_small.png]]
   The PowerTOP curses based display
 '''Requirements'''
@@ Line 10: / Line 10: @@
 PowerTOP works best on a laptop computer, or at least a computer with an Intel mobile processor (certain small non-laptop devices also contain a mobile processor). When using PowerTOP on a laptop, do so when running on battery.

PowerTOP - Revision history

Benjamin Pineau: /* Intel PowerTOP */ delayed + link to the effective powertop homepage

Csawtell: /* Intel PowerTOP */

Csawtell: â†Created page with '== Intel PowerTOP == 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 kerne...'

Csawtell: â†Created page with '== Intel PowerTOP == 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 kerne...'