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From
SubjectRe: CPU throttling??
Date
Followup to:  <20030203211806.GA21312@codemonkey.org.uk>
By author: Dave Jones <davej@codemonkey.org.uk>
In newsgroup: linux.dev.kernel
>
> Most (all?[1]) other modern x86 mobile processors behave the way I mentioned.
> AMD Powernow (K6 and K7), VIA longhaul/powersaver all have optimal voltages
> they can be run at when clocked to different speeds. By way of example, a table from
> my mobile athlon..
>
> FID: 0x12 (4.0x [532MHz]) VID: 0x13 (1.200V)
> FID: 0x4 (5.0x [665MHz]) VID: 0x13 (1.200V)
> FID: 0x6 (6.0x [798MHz]) VID: 0x13 (1.200V)
> FID: 0xa (8.0x [1064MHz]) VID: 0xd (1.350V)
> FID: 0xf (10.5x [1396MHz]) VID: 0x9 (1.550V)
>
> Sure I *could* run that at 523MHz and still pump 1.550V into it,
> but why would I want to do that ?
>
> Dave
>
> [1] Unsure about the crusoe.
>

Crusoe changes frequency and voltages on the fly, transparently to the
operating system.

-hpa
--
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
Architectures needed: cris ia64 m68k mips64 ppc ppc64 s390 s390x sh v850 x86-64
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