It's the same for me. About 50% of CPU usage for kapm-idled. It's not saving
energy? It's important to me because of my laptop.

Luis Miguel Garcia



Borsenkow Andrej wrote:

> Common myth is that system accounts its idle time to kapm-idled.
> Unfotunately, it does not look like being truth.
>
> First, look in apm_mainloop - it has very interesting comment:
>
>                   * Ok, check all events, check for idle (and mark us
> sleeping
>                   * so as not to count towards the load average)..
>
> Second, start something like gkrellm and watch it for some time. Pay
> attention to displayed system time and CPU temp. You'll see very
> interesting results. Most of the time CPU is IDLE - i.e. it displays 0%
> (or near) and CPU temp is near its minimal value (in my case it is
> usually 29C). But sometimes kapm-idled decides it has something to do as
> well - and system time goes up at about 50% and CPU temp *goes up* as
> well - good, it does not rocket as in case of burncpu, but it stays
> above minimal values.
>
> In both cases I do nothing except sitting there and looking at gkrellm.
> which mean in both cases system is idle ...
>
> So the main statement is - when your kapm-idled is shown as using 50% of
> your CPU - it does really use this 50% of CPU. It does *not* sit there
> idling (and cooling) your CPU but really keeps it running.
>
> comments?
>
> -andrej



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