Messages in this thread | | | Date | Fri, 05 Dec 2008 23:05:39 +0000 | From | Tom Hughes <> | Subject | Re: [PATCH 1/1] cpufreq: eeepc 900 frequency scaling driver |
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Thomas Renninger wrote:
> The biggest problem I see with these "special" ACPI cpufreq interface is: > Can there be Asus/eeepcs which provide these ACPI functions (maybe dummies on > future machines?), but can still be switched via the spec conform and more > efficient acpi-cpufreq driver via PSS tables?
So should we tie this driver to particular DMI signature(s) then? As far as I know it is only useful for the Eee 900 and possibly the 701 when running later BIOSes.
> BTW: Have you tried out how much power (or at least battery life time) you > win?
Running with wifi and the screen off, and the CPU busy (doing m5sum of /dev/zero) I get 2:37 run time at 900MHz and 3:09 at 630MHz so the increase in run time is about 20% on that test.
Tom
-- Tom Hughes (tom@compton.nu) http://www.compton.nu/
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