Re: Status of X86_P4_CLOCKMOD?

[Andi Kleen]

On Tuesday 28 February 2006 22:39, Dmitry Torokhov wrote:
> On 2/28/06, Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx> wrote:
> > On Tue, Feb 28, 2006 at 03:26:32PM -0600, Matt Mackall wrote:
> > > > So even if the battery lasts longer, you don't have anything of it, 'cause
> > > > the CPU can even compute _less_ in this longer time-span. Remember that
> > > > idling doesn't count...
> > >
> > > Which is different from other power-saving modes how? If it means I
> > > can read my email longer on the plane, it's a power-saving mode.
> >
> > But you can't... [*]
> ...
> > [*] unless the idling algorithm is broken and does not enter C2-type idle
> > states.
> 
> Or box does not support anything but C1.

There are quite advanced forms of C1 around.
And I would expect even old style dumb C1 to save more than throttling.

-Andi
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