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Re: enhanced speed step on AMD64

On Sun, 23 May 2010, wrote:

> Is anybody else running this chip w/ Speedstep working correctly? I've
> got "options         ENHANCED_SPEEDSTEP" enabled in my kernel -- is
> there something else I need?

I don't know about that chip, but I have it enabled and running here on
i386 and there is nothing in the dmesg about it as there are only
aprint_debug() in est.c (try boot -x to enable those)

also, you can see "sysctl machdep.est" output, eg = 1000
machdep.est.frequency.current = 1000
machdep.est.frequency.available = 2000 1833 1667 1500 1333 1167 1000

and finally you can use sysutils/estd from pkgsrc to manage the active
frequency adaptations depending on system load..


(an est(4) manpage would be nice)

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