On Friday 28 March 2008, Pallipadi, Venkatesh wrote:
quoted text
> 100% C0 is not real reading. The problem behind that is there is no wat
> to measure exact C1 idle time with halt based C1s. So, we always used to
> report 0 time in acpi and that's what is reported by powertop.
> This should be fixed in future, as we now export approx time (even
> though not exact) in cpuidle and powertop is about to start using it.

I just pulled the latest powertop SVN and see it's smarter now.
It says over 90% in C1 (doing normal desktop stuff), with nasty
IRQ rates but that's the fault of silly desktop code.  ;)

- Dave

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