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SubjectRe: [PATCH] i386 No-Idle-Hz aka Dynamic-Ticks 3
Date
On Thu, 4 Aug 2005 04:59 pm, Jim MacBaine wrote:
> I just borrowed a power meter to see (or not to see) real effects of
> dyntick. The difference between static 1000 HZ and dynamic HZ is much
> less than I expected, only a very little about noise. With dyntick
> disabled at 1000 HZ my laptop needs 31,3 W. With dyntick enabled I
> get 29.8 W, the pmstats-0.2 script shows me that the system is at
> 35-45 HZ when it is idle.
>
> The power consumption difference between 250 HZ static and dyntick is
> below the noise, so maybe hardly worth all the struggle.

That's not the point. We want the power savings without sacrificing the extra
ticks if we need them.

Cheers,
Con
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