Re: idle Athlon with IOAPIC is 10C warmer since 2.6.3-bk1

[Len Brown]

On Fri, 2004-03-19 at 14:22, Prakash K. Cheemplavam wrote:

> Hmm, I just did a cat /proc/acpi/processor/CPU0/power:
> active state:            C1
> default state:           C1
> bus master activity:     00000000
> states:
>     *C1:                  promotion[--] demotion[--] latency[000] 
> usage[00000000]
>      C2:                  <not supported>
>      C3:                  <not supported>
> 
> I am currently NOT using APIC mode (nforce2, as well) and using vanilla 
> 2.6.4. It seems C1 halt state isn't used, which exlains why I am having 
> trouble to keep my CPU cooler these day. I once started a thread 
> suspecting acpi timer, but it is not the case. It seems to be something 
> else. As I don't use PIC, it cannot be that  8259-timer-ack-fix.patch 
> causin git, or can it? Maybe something broken in ACPI? I might try out 
> older kernels to find out...
> 
> Prakash

Actually I think it is that we don't _count_ C1 usage.

cheers,
-Len


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/