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Message-ID: <f513a98ea2e03f81941beae941a63b42@localhost> Date: Mon, 2 Jun 2008 07:22:44 +0200 From: Michael Guntsche <mike@...loops.com> To: linux-kernel@...r.kernel.org Subject: Re: 2.6.25.x: Wrong CPU frequency (cpufreq table) with p4-clockmod On Sun, 01 Jun 2008 21:36:58 -0500, Roger Heflin <rogerheflin@...il.com> wrote: > Arjan van de Ven wrote: >> >> just as a side note.. you do realize that with p4-clockmod, your cpu is >> still running at 1.7 GHz right? (it's just doing less work '-) > From my testing, I believe the only thing that p4-clockmod does is forces > an > idle call when it could otherwise do work on an active process, so > fullspeed and > idle uses *EXACTLY* the same amount of power as p4-clockmod slower speed <snip> Thanks for the detailed information everyone. The first time I tested this I was under the impression that it indeed had an influence on the produced heat of the CPU. I did a quick test this morning and of course you are right, there is no change at all. This is a good thing though, since it gives me an excuse to upgrade this machine to a C2D. :) For the time being I will just disable the cpufreq stuff since it really does not make a difference in my case. Kind regards, Michael -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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