Re: [PATCH 2.6] update passive cooling algorithm

Ducrot Bruno
2004-01-12T15:46:11Z

On Sun, Jan 11, 2004 at 10:12:55PM +0100, Dominik Brodowski wrote:
> [Len, could you test and verify this patch, and push it to Linus, please?]
>
> The current algorithm used by Linux ACPI for passive thermal management has
> two shortcomings:

...

> +/* If a passive cooling situation is detected, primarily CPUfreq is used, as it
> + * offers (in most cases) voltage scaling in addition to frequency scaling, and
> + * thus a cubic (instead of linear) reduction of energy. Also, we allow for
> + * _any_ cpufreq driver and not only the acpi-cpufreq driver.
> + */

Just a stupid question:

What is best if processor heat issues (apart turning on the fan)?

Reducing voltage of the processor, but still allowing it to run execution
at 100% (which is the case if the processor is heating), or reduce
amount of time allowed for the processor to execute?

--
Ducrot Bruno

-- Which is worse: ignorance or apathy?
-- Don't know. Don't care.