[ltp] CPU Throttling on R50p

[Michael Gaber]

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hmm, my CPU is in C3, no problem with that


Alexander Gran wrote:
| Well, C3 Powersaving would reduce consumption a lot. Linux reports CPU
speeds
| of 53Mhz than. However I've not managed to let the cpu go into C3
while using
| USB or AGP.
|
| regards
| Alex
|
| Am Mittwoch, 9. März 2005 18:52 schrieb Winsley von Spee:
|
|>Thank ATI and praise the lord in hope of better drivers .... *g* ... or
|>work in console ... *g*
|>
|>hmm If you are using the scaling abilities under windows the same way as
|>under linux the difference shouldn't be so large anyway.
|>
|>Greetz
|>
|>On Wed, 09 Mar 2005 18:02:41 +0100
|>
|>Michael Gaber <Michael.Gaber@gmx.net> wrote:
|>
| ok that might be the cause, but i have still the problem, that under
| linux i have only about 2 hours of battery while under windows i can
| work about 4
|
| Winsley von Spee wrote:
| | Hi
| |
| | The Pentium M CPU's aren't able to scale to a lower freq than 600 MHz.
|
| The newer one (the one with the dothan core) are only able to scale down
| to 800 MHz. If something in Windows report a clock speed of 200 MHz it's
| wrong. Throttling doesn't change the cpu clock it just adds idle cycles
| to reduce the power consumption if the cpu is to hot.
|
| | cat /proc/acpi/processor/CPU/throttling
| |
| | Reports the available throttling states and which state is active.
| |
| | Greetz
| |
| | On Wed, 09 Mar 2005 15:40:52 +0100
| | Michael Gaber <Michael.Gaber@gmx.net> wrote:
| |
| |
| | well you can echo e.g. 200000 but it wont work, cause you can't alter
| | the cpufreq_min_freq
| |
| | morpheus wrote:
| | |>This can only go down to 600 MHz.
| | |
| | | There _is_ a file in /sys/devices/system/cpu/cpu0/cpufreq called
| |
| | "scaling_min_freq" which is set to 600000 on my system.  You could try
| | setting this to a lower value if you want to go down further...I've
| | never done this though and I'm not sure if it's recommended or will
| | damange anything.  Does anyone else know?
| |
| | | -m
| | |
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