Re: [PATCH][2.5.32] CPU frequency and voltage scaling (0/4)

From: Dave Jones (davej@suse.de)
Date: Thu Aug 29 2002 - 08:38:47 EST


On Thu, Aug 29, 2002 at 11:53:40AM +0100, Alan Cox wrote:
> > { min-Hz, max-Hz, policy }
> For a few of the processors "event-hz" or similar would be nice. The
> Geode supports hardware assisted bursting to full processor speed when
> doing SMM, I/O and IRQ handling.

If we do implement (for sake of argument) /proc/sys/performance or
whatever, changing the cpufreq interface so it performs 'stacking'
would be a good idea too.
Eg, on a K6-3+ system, we could do cpu scaling and chipset throttling
just by doing a echo "min" > /proc/sys/perf or whatever, and have
the code call 'chains' of performance related features.

Comments?

        Dave

-- 
| Dave Jones.        http://www.codemonkey.org.uk
| SuSE Labs
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