RE: 2.6.16rc5 'found' an extra CPU.

From: Brown, Len
Date: Thu Mar 02 2006 - 14:16:40 EST


> /proc/acpi/processor/CPU0/throttling

Yes, the generic layer should expose throttling.
But before it does so, it needs to learn that T-states
have very different implications from P-states.

Indeed it is a bug in the current architecture that
P-states are exposed by cpufreq on some systems,
and T-states are exposed on other systems, and
they are treated like they are the same.

It is also bug that T-states are exposed
on some systems, while ACPI is simultaneously
assuming exclusive access to them for thermal throttling.

-Len
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