Hi,
On Sat, Mar 04, 2006 at 05:54:23AM +0000, David W. Hankins wrote:
> The 'power' procfile lists a max_cstate of C8, but only lists C1-C4 as
> usable states to enter...I notice it is also this way in the example
> file output provided in Mr. Ariel's howto, so this must not be uncommon
> or new.
max_cstate is the maximum the kernel would make use of if they were provided
by the hardware and by the BIOS. However,
> But, if 8 states are avaialble, why are only 4 in use?
it is quite common that only one, two, three or -- at most! -- four of these
states are actually available on a system. The ACPI core allows for eight to
be ready for future systems which might have more than these four available.
Dominik
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