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Old 07-02-2010, 02:22 PM
Volker Armin Hemmann
Default OT: governors (was: Is cpufrequtils needed these days?)

On Freitag 02 Juli 2010, Nicolas Sebrecht wrote:
> On Sun, Feb 28, 2010 at 07:52:02PM +0100, Volker Armin Hemmann wrote:
> > On Sonntag 28 Februar 2010, Mick wrote:
> > > or is the kernel itself clever enough to manage the hardware directly
> > > these days?
> >
> > yes, it is. Just use the ondemand governor.
> I've noticed what looks like some work overloads using the ondemand
> governor. I'm pretty sure it is normal but I can see (user feeling) when
> the system loads the processor by intermittence. It is visible on some
> compilations tasks and when playing flash videos and compared to the
> performance governor. I'm still runing a 2.6.26 kernel.

of course there is a little difference. Performance is not a governor. It just
sets the cpu at always full speed. So it does not have any ramp up time - but
also blows away a lot of energy AND generates unnecessary heat.

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