On 10/01/2007 02:15 AM, Mikhail Kshevetskiy wrote:
> Hello,
>
> I have ASUS F3T notebook with dualcore AMD processor. It has c1e feature
> enabled. I test linux-2.6.23-rc8-hrt1 kernel. Everything is work (thanks
> to lapic disable patch), but i have to many processor interrupts per
> seconds (about 260 additional timer interrupts).
>
> The same situation can be observed for linux-2.6.22. Moreover the same
> problem exist with i386 kernel (test with 2.6.21, 2.6.22, 2.6.22-hrt6,
> 2.6.23-rc5-hrt1).
>
> The problem disappear when I disable c1e on both cores. In this case
> lapic is not disabled. The back side of this patch is the disabling of
> all C-state including C1. As result the power consumption increase from
> 23 (c1e enabled) to 27 (c1e disabled) watts.
>
> I fill something wrong here.
> Is it possible to reduce the amount of timer interrupts?
> Is it possible to force enable C1,C2 and C3 states when c1e disabled?
>
How are you disabling C1E?
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